20th International Conference on Defects in Insulating Materials

23-27 November 2020

Final Programme


An online conference hosted by the Federal University of Sergipe, Brazil

DIRK SCHOEMAKER TRIBUTE LECTURE

E. Goovaerts (University of Antwerp, Belgium) and S. Nistor ( National Institute of material Phisics, Romania)

MAREK GRINBERG TRIBUTE LECTURE

S. Mahlik (University of Gdansk, Poland)

The world of luminescent materials offers a stimulating roundtable for the scientific community on the principal factors that drive the luminescence in inorganic bulk and nano-materials. Especially in nanomaterials the promotion of a deep knowledge of defects and of engineering strategies are powerful tools to adapt their electronic and luminescent properties for various applications. We present successful results obtained for nanometric ZnO and HfO2. Their luminescence displays a dependence on the material intrinsic defectiveness. Indeed, we proved that ZnO and HfO2 luminescence features, originating from different optically active defects, are controlled by synthesis and thermo-chemical treatments that lead to morphological modifications, surface/interface restructuring, size change, and thus to rearrangement of defects. In addition, we explore the influence exerted by defectiveness on ZnO photochemical activities and on the generation of persistent toxic free radicals; in parallel we investigate the suitability of a HfO2 blue luminescence emission for future purposes in the scintillation detectors field, as well as in X‐ray triggered oncological therapies.

Oral Session 1: Luminescence of excitons, impurities & defects. Electronic excitations, excited state dynamics, radiative and non-radiative relaxations

15LASER-INDUCED DESTRUCTION OF BISMUTH LASER-ACTIVE CENTERS IN PHOSPHOSILICATE GLASS FIBERS: EFFECT OF HEATING TEMPERATUREAleksandr Kharakhordin, Sergey Alyshev, Konstantin Riumkin, Mikhail Melkumov, Sergei FirstovProkhorov General Physics Institute of Russian Academy of Sciences, Russia.AbstractOral Presentation
18PROSPECTS OF LUMINESCENCE STUDIES AT THE COHERENT X-RAY NANOPROBE BEAMLINE (CARNAÚBA/SIRIUS)Verônica C. Teixeira, Carlos A. Pérez, Carlos S. B. Dias, Itamar T. Neckel, Renan R. Geraldes, Douglas Galante, Hélio C. N. TolentinoBrazilian Synchrotron Light Laboratory, Brazilian Center for Research in Energy and Materials, Brasil.AbstractOral Presentation
38Using X-ray absorption spectroscopy to probe electron transfer processes in luminescent materials: strategies and surprisesPhilippe F. Smet, Jonas J. Joos, Lucia Amidani, Dirk PoelmanLumiLab - Ghent University (Belgium), ESRF Grenoble (France)AbstractOral Presentation
56DEVELOPMENT OF COMPOSITE THERMOLUMINESCENT DETECTORS BASED ON THE LPE GROWN EPITAXIAL STRUCTURES OF PEROVSKITE COMPOUNDSS. Witkiewicz-Lukaszek1, Anna Mrozik2, Vitalii Gorbenko1, Wojciech Gieszczyk2, Tetiana Zorenko1, Pawel Bilski2, Yuriy Zorenko11 Institute of Physics, Kazimierz Wielki University in Bydgoszcz, Poland. 2 Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, PolandAbstractOral Presentation
58COOPERATIVE LUMINESCENCE OF YB PAIRS AND SATURATION OF THE ABSORPTION IN LI6Y(BO3)3:YB SINGLE CRYSTALSKrisztián Lengyel, Éva Tichy-Rács, László Kovács, Vitali Nagirnyi, Kou Timpmann, Sebastian Vielhauer, Ivo RometWigner Research Centre for Physics, HungaryInstitute of Physics, University of Tartu, EstoniaAbstractOral Presentation
62ENHANCEMENT OF EXCITON LUMINESCENCE IN LUAG SINGLE CRYSTAL BY LA DOPINGKarol Bartosiewicz1,2*, Takahiko Horiai2, Akihiro Yamaji2, Akira Yoshikawa2,3, Shunsuke Kurosawa2,3,4, Kyoung Jin Kim3, Vitaliy Vistovskyy5, Anatoliy Voloshinovskii5, Yuriy Zorenko11 Institute of Physics, Kazimierz Wielki University, Poland.2 Institute for Material Research, Tohoku University, Japan.3 New Industry Creation Hatchery Center, Tohoku University, Japan. 4 Facility of Science, Yamagata University, Japan. 5 Physical Department Ivan Franko National University, UkraineAbstractOral Presentation
69DEPENDENCE ON EXCITATION DENSITY OF EXCITON TIME-RESOLVED LUMINESCENCE IN ZnO AT 295 KBelsky. A, Martin. P, Fedorov. N, Filippov. A, Descamps. D, Vasil'ev. ACELIA, Université de Bordeaux, CNRS, France. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Russia.Abstract Oral Presentation
77THERMOLUMINESCENCE PROPERTIES OF THE SALT OF LLUTACarlos D. Gonzales-Lorenzo1, Darwin Callo1, Nilo Cano Mamani2, Jorge Ayala-Arenas11-Escuela Profesional de Física, Facultad de Ciencias Naturales y Formales, Universidad Nacional de San Agustín (UNSA), Peru. 2-Departamento de Ciências do Mar, Universidade Federal de São Paulo, BrazilAbstractOral Presentation

Poster Session 1: Luminescence of excitons, impurities & defects. Electronic excitations, excited state dynamics, radiative and non-radiative relaxations

11STUDY OF THERMALLY AND OPTICALLY STIMULATED LUMINESCENCE IN LiF:Mg,Ti FOLLOWING NEUTRON AND BETA IRRADIATIONI. Eliyahu1 Y.S. Horowitz2, G. Reshes3, A. Shapiro3, S. Biderman3, Y. Y.Assor4, D. Ginsburg2, B. Herman4, L. Oster31 Nuclear Research Center, Yavneh, Israel. 2 Ben Gurion University of the Negev, Israel. 3 Physics Unit, Sami Shamoon College of Engineering, Israel. 4 Nuclear Research Center Negev, Israel.AbstractPoster Presentation
12ELIMINATION OF SUPRALINEARITY IN THE DOSE RESPONSE OF LiF:Mg:Ti VIA POST IRRADIATION 3.65 eV and 5.08 eV (F BAND) PHOTON EXCITATIOND. Ginsburg1, I. Eliyahu2 Y.S. Horowitz1, G. Reshes3, A. Shapiro3, S. Biderman3, Y. Y.Assor4, B. Herman4, L. Oster31 Ben Gurion University of the Negev, Israel. 2 Nuclear Research Center, Yavneh, Israel. 3 Physics Unit, Sami Shamoon College of Engineering, Israel. 4 Nuclear Research Center Negev, Israel.AbstractPoster Presentation
13Elucidating the Anomalous Optical Blue Shift in CdSeZnS Nanocrystals by XASMartín Mizrahi, María Acebrón, Facundo Herrera, Félix Requejo and Beatriz H. JuarezInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas – INIFTA (CONICET - UNLP), Argentina. IMDEA Nanoscience, Madrid, España. Instituto de Nanosistemas, UNSM, CABA, Argentina.AbstractPoster Presentation
17VARIATION OF THE LUMINESCENT EMISSION COLOR OF UNDOPED CdSiO3 PRODUCED BY THE SOL-GEL ROUTESimone Santos Melo, Tatiane Strelow Lilge, Maria de Andrade Gomes, Zélia Soares Macedo, Mário Ernesto G. ValerioFederal University of Sergipe, Department of Physics, BrasilAbstractPoster Presentation
20Spectroscopic studies of Bi3+-doped Сa3Ga2Ge3O12 garnetV. Tsiumra1,2, A. Krasnikov3, Yu. Hizhnyi4, Ł. Wachnicki1, L. Vasylechko5, S. Zazubovich3, Ya. Zhydachevskyy1,5, A. Suchocki1,61 Institute of Physics, Polish Academy of Sciences, Poland. 2 Ivan Franko National University of Lviv, Ukraine. 3 Institute of Physics, University of Tartu, Estonia. 4 Taras Shevchenko National University of Kyiv, Ukraine. 5 Lviv Polytechnic National University, Ukraine. 6 Institute of Physics, University of Bydgoszcz, Poland.AbstractPoster Presentation
24INTERACTION EFFECTS OF Ce3+ AND Bi3+ IONS IN LUMINESCENT PROPERTIES OF LiLaP4O12José Henrique Monteiro de Azevedo, Adriano Borges Andrade, Giordano Frederico da Cunha Bispo, Zélia Soares Macedo, Mário Ernesto Giroldo ValérioLaboratory of Preparation and Characterization of Materials, Physics Department, Federal University of Sergipe, BrazilAbstractPoster Presentation
33THE ROLE OF HEAVY METAL IMPURITIES AND DEFECTS IN BORATE-PHOSPHATE GLASSES LUMINESCENCES.G. Nedilko1, V. Prokopets1, N. Stus1, V. Yaschuk1, M. Androulidaki2, A. Manousaki2, A. Papadopoulos2, M. Stratacis2, O. Gomenyuk3, V. Sheludko3Taras Shevchenko National University of Kyiv, Ukraine. Institute of Electronic Structure & Laser (IESL) of Foundation for Research & Technology Hellas (FORTH), Crete. O. Dovzhenko Hlukhiv National Pedagogical University, Ukraine.AbstractPoster Presentation
34LIGHT-INDUCED OPTICAL ABSORPTION IN Bi12TiO20:V CRYSTALSMarina Kisteneva (1), Valeriya Dyu (1), Stanislav Shandarov (1), Seraphim Smirnov (1), Yuri Kargin (2)(1) State University of Control System and Radioelectronics, Russia. (2) A.A. Baikov Institute of Metallurgy and Materials Science RAS, RussiaAbstractPoster Presentation
51DYSPROSIUM-CONCENTRATION DEPENDENCE ON THE LUMINESCENCE OF BaAl2O4: Eu2+, Dy3+ LASER-SINTERED CERAMICSDeyvid do Carmo Silva 1, Amanda Santana Lima 2, David Vieira Sampaio 3, Ronaldo Santos da Silva 11 Federal University of Sergipe, Physics department, Brasil. 2 Federal University of Sergipe, Materials Engineers Department, Brazil. 3 Federal University of Alagoas, Physics department, BrasilAbstractPoster Presentation
59REVEALING THE LUMINESCENCE MECHANISMS IN Li2MoO4 SCINTILLATION CRYSTALS BY COMPLEX EXPERIMENTAL AND COMPUTATIONAL STUDYYu. Hizhnyi1, S. Nedilko1, V. Chornii1,2, I. Tupitsyna3, O. Dubovik3, G. Yakubovskaya31 Taras Shevchenko National University of Kyiv,Ukraine. 2 National University of Life and Environmental Sciences of Ukraine, Ukraine. 3 Institute for Scintillation Materials NAS of Ukraine, Ukraine.AbstractPoster Presentation
60ELECTRONIC PROPERTIES OF Mn-RELATED DEFECTS IN YAlO3Yu. Hizhnyi1,2, S.G. Nedilko1, M. Berkowski2, M. Głowacki2, A. Suchocki2, Ya. Zhydachevskyy2,3, S. Ubizskii31 Taras Shevchenko National University of Kyiv, Ukraine. 2 Institute of Physics, Polish Academy of Sciences, Poland. 3 Lviv Polytechnic National University, UkraineAbstractPoster Presentation
61MOLYBDATE GLASS-CERAMICS: SYNTHESIS AND LUMINESCENCE PROPERTIESV.P. Chornii, S.G. Nedilko, K.V. Terebilenko, M.S. Slobodyanik, V.V. BoykoTaras Shevchenko National University of Kyiv, Ukraine. National University of Life and Environmental Sciences of UkraineAbstractPoster Presentation
68LUMINESCENCE OF Ce3+ MULTICENTERS IN NEW Ca2YMgScSi3O12 MICROPOWDER GARNET PHOSPHORAnna Shakhno, Anton Markovskyi, Tetiana Zorenko, Yevheniya Vlasyuk, Miroslaw Batentschuk, Yuriy ZorenkoKazimierz Wielki University of Bydgoszcz, Poland. University of Erlangen-Nuremberg, Germany.AbstractPoster Presentation
71ESTIMATION OF YIELD AND DECAY KINETICS OF INTRABAND LUMINESCENCE IN MULTIPLE-PARABOLIC-BRANCH-BAND MODEL WITH ACCOUNT OF PHONONSEvgenii Tishchenko, Andrey Vasil'evFaculty of Physics, Lomonosov Moscow State University, Russia.Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Russia.AbstractPoster Presentation
76THERMOLUMINESCENT ANALYSIS OF LI2B4O7:CeLeo S.S. Oliveira, Luiza F. Souza, Walessa B.R. Pereira, Malu F.S. D'Emidio, Divanizia N. Souza, Maria S. NogueiraUniversidade Federal de Sergipe, Brasil. Centro de Desenvolvimento da Tecnologia Nuclear, Brasil.AbstractPoster Presentation
88TWO-LEVEL DEFECT INTERACTING WITH PHONONS AS A CONVERTOR OF PHOTON MODESO.V. Tikhonova1,2 and A.N.Vasil’ev21 Physics Department, M.V. Lomonosov Moscow State University, Russia. 2 Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Russia.AbstractPoster Presentation
92THE EFFECTS OF LI ADDITION ON THE LUMINESCENT PROPERTIES OF LISRPO4:EU3+ WHEN EXCITED WITH X-RAY AND UV RADIATIONPatresio Alexandro Miranda do Nascimento, Ariosvaldo Junior Sousa Silva, Iure Silva Carvalho, Marcos Vinícios dos Santos RezendeUniversidade Federal de Sergipe, Brasil.AbstractPoster Presentation
94Luminescent properties of the Tm-doped and Tm-Ag co-doped lithium tetraborate glassesI.I. Kindrat, B.V. Padlyak, R. Lisiecki, A. Drzewiecki, V.T. Adamiv, I.M. TeslyukUniversity of Zielona Góra, Poland. Vlokh Institute of Physical Optics, Ukraine. Institute of Low Temperature and Structure Research of the Polish Academy of Sciences, Poland.AbstractPoster Presentation
105TL AND OSL SIGNAL DISTRIBUTION OVER THE LENGTH OF THE LiMgPO4 CRYSTAL RODS GROWN BY MICRO-PULLING DOWN METHODBarbara Marczewska, Wojciech Gieszczyk, Mariusz Kłosowski, Paweł BilskiInstitute of Nuclear Physics Polish Academy of Sciencies, Poland.AbstractPoster Presentation
106RL AND OSL REMOTE READOUTS OF RARE-EARTHS DOPED LiMgPO4 CRYSTALSBarbara Marczewska, Anna Sas-Bieniarz, Mariusz Kłosowski, Wojciech Gieszczyk, Paweł BilskiInstitute of Nuclear Physics Polish Academy of Sciencies, PolandAbstractPoster Presentation
115How structural defects and covalency is bonded with Persistent Luminescent?Miguel Aguirre Stock Grein Barbará, Lucas Carvalho Veloso RodriguesDepartment of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Brasil.AbstractPoster Presentation

COMPUTER MODELLING OF INTRINSIC DEFECTS AND Th INCORPORATION IN MgF2: WHAT WE CAN LEARN FROM ATOMISTIC MODELLING AND DFT APPROACHES.

Robert A Jackson (University of Keele, UK) and Mario E G Valerio (Federal University of Sergipe, Brazil)

MgF2 is of interest as a host for Th nuclei in nuclear clock applications. The talk will describe recent modelling work on this material, and a comparison with recently published DFT calculations.

Although it is at first sight a fairly simple material, deriving a potential that fits the structure and gives sensible defect energies was challenging, and the process will be described. Then the calculated intrinsic defect formation energies will be presented.

If Th is to be incorporated in the lattice, it can either substitute for a Mg ion or occupy an interstitial site, both possibilities requiring charge compensation. Solution energies for these processes will be calculated, and the resulting predictions compared with those of a recent published DFT study. A general discussion will be made of how results from the two approaches can be compared and evaluated.

UNDERSTANDING DOPANT INCORPORATION IN METAL ORGANIC FRAMEWORKS VIA ELECTRON PARAMAGNETIC RESONANCE SPECTROSCOPY

Henk Vrielinck, Kwinten Maes, Freddy Callens (Ghent University, Dept. Solid State Sciences, Belgium)

Electron paramagnetic resonance (EPR) and electron nuclear double resonance (ENDOR) provide detailed information on the nearest environment of paramagnetic ions through symmetry and hyperfine interactions. They are thus perfectly suited for determining the location of paramagnetic states of transition metal and lanthanide ions in insulating materials.

In recent years our EPR and ENDOR research has mainly focused on understanding how metal dopant ions get incorporated in metal organic frameworks (MOFs). These crystalline, highly porous materials, consisting of metal-inorganic nodes connected by organic struts, have a wide range of potential applications, e.g. in gas storage, separation, sensing and heterogeneous catalysis. Combining various metals in the same framework may lead to new or improved functionality, or allow to build in an metal ion with desired properties in an inert and highly stable host. The rationale behind doping of MOFs is thus similar as for classical oxide and halide materials.

MOFs are most often synthesized via solvothermal methods. Metal doping occurs by adding dopants to the solution during synthesis or via post-synthesis ion exchange reactions in solution. These procedures do not necessarily only lead to simple metal substitution. In this presentation, we illustrate this with our recent work on vanadium doping of a (Al-OH)-biphenyl-dicarboxylate MOF (DUT-5), where we combine EPR and ENDOR with infrared spectroscopy, X-ray diffraction and electron microscopy.

Oral Session 2: Defects modeling & computational methods

27Computational modelling of cadmium silicate doped with rare earth and transitions metal ionsEduily B. V. Freire 1 , Anderson L. S. Santos 1 , Giordano F. C. Bispo 2 , Maria de Andrade Gomes 1 , Robert A. Jackson 3 , Zélia S. Macedo 1,2 and Mário E. G. Valerio 1,21 Physics Department, Federal University of Sergipe, Brazil. 2 Materials Science and Engineering Department, Federal University of Sergipe, Brazil.3 School of Chemical and Physical Sciences, Keele University, Keele, UK.AbstractOral Presentation
35Broadband dopant-to-dopant charge transfer luminescenceJonas J. Joos, David Van der Heggen, Lisa I. D. J. Martin, Lucia Amidani, Philippe F. Smet, Zoila Barandiarán, Luis SeijoLumiLab, Department of Solid State Sciences, Ghent University, Belgium.Departamento de Química and Instituto Universitario de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, SpainAbstractOral Presentation
65Structural Investigation of Pure LiMnO2 and Li-Rich Li1.2Mn0.8O2 Cathode Materials for Li-Ion Batteries: An Atomistic Simulation Study.N. T. Tsebesebe, K. M. Kgatwane, R. S. Ledwaba, and P. E. NgoepeUniversity of Limpopo, South AfricaAbstractOral Presentation
79COMPUTATIONAL MODELLING OF ORTHOSILICATES Lu2SiO5 AND Y2SiO5 DOPED WITH TRIVALENT RARE EARTH IONSAnderson Lira de Sales Santos, Eduily Benvindo Vaz Freire, Giordano Frederico da Cunha Bispo, Zélia Soares Macedo, Mário Ernesto Giroldo ValerioPhysics Department-Federal University of Sergipe, Brasil. Materials Science and Engineering Department-Federal University of Sergipe, Brasil.AbstractOral Presentation
112AN INTRINSIC AND EXTRINSIC DEFECTS STUDY OF MgB4O7 THROUGH A COMPUTATIONAL ATOMISTIC MODELLINGGiordano F. da C. Bispo, Gilvan S. Ferreira, Héstia Raíssa B. R. Lima, Débora S. Nascimento, Francesco d’Errico, Susana O. Souza, Mário E. G. Valerio, Robert A. JacksonFederal University of Sergipe, Brasil. Federal Institute of Sergipe, Brasil. University of Pisa, Italy. Yale University, USA.AbstractOral Presentation
118APPLICATION OF DENSITY FUNCTIONAL THEORY TO THE STUDY OF LUMINESCENCE EFFECTS IN MgB4O7 CRYSTALSLucas Barreto Santana, Francesco D'errico, Susana Oliveira de Souza, Giordano Frederico da Cunha Bispo, Mário Ernesto Giroldo Valério, Milan Lalic.Federal University of Sergipe, Brasil. University of Pisa, Italy. AbstractOral Presentation

Poster Session 2: Defects modeling & computational methods. Fundamental physical phenomena.

9Computational Modeling of Defects in Ba2YNbO6Derinaldo Santos Figueiredo, Romel Menezes AraujoPio Decimo College, BrasilAbstractPoster Presentation
10Computer Simulation of Defects, Reduction and Optical Properties in ZnTiO3Emanuel Felipe dos Santos Mattos, Romel Menezes AraujoPio Décimo College, BrasilAbstractPoster Presentation
55OPTICAL PROPERTIES AND ELECTRONIC STRUCTURE OF RAlO3 (R = La, Gd, Y, Yb, Lu) PEROVSKITESYa. Zhydachevskyy 1,2*, Yu. Hizhnyi 3, S.G. Nedilko 3, M. Głowacki 1, M. Berkowski 1, A. Suchocki 11 Institute of Physics, Polish Academy of Sciences, Warsaw, Poland. 2 Lviv Polytechnic National University, Lviv, Ukraine. 3 Taras Shevchenko National University of Kyiv, UkraineAbstractPoster Presentation
82Atomistic simulation and spectroscopic study of the Eu3+ doped CaSO4 crystalAndré Massao Otsuka, Danilo Oliveira Junot, Heveson Lima, Marcos Vinícius dos Santos Rezende, Marcos Antonio Couto dos Santos.Federal University of Sergipe, BrasilAbstractPoster Presentation
83STRUCTURAL BEHAVIOR OF GARNET-TYPE Li7La3Zr2O12 SOLID ELECTROLYTE MATERIAL: A CLASSICAL MOLECULAR DYNAMICS STUDYRaesibe S. Ledwaba and Phuti E. NgoepeMaterials Modelling Centre, University of Limpopo, South AfricaAbstractPoster Presentation
84ELECTRONIC PROPERTIES OF THE InTaO4 AND InNbO4 COMPOUNDS WITH WOLFRAMITE TYPE-STRUCTURELívia L. Alves, Jonathan S. Souza, Adilmo F. de LimaFederal University of Sergipe, BrasilAbstractPoster Presentation
96INVESTIGATION OF THE STRUCTURAL AND ELECTRONIC PROPERTIES OF MGTIO3 USING FIRST PRINCIPLES CALCULATIONCristiane Schwartz Venzke, Mateus Meneghetti Ferrer, Mario Lucio MoreiraUniversidade Federal de Pelotas, BrasilAbstractPoster Presentation
101Computational simulation and crystal field analysis of the Eu3+-doped LiFBruno Ribeiro de Mesquita, André Massao Otsuka, Marcos Vinicius dos Santos Rezende, Marcos Antonio Couto dos SantosFederal University of Sergipe, BrasilAbstractPoster Presentation
108MULTI-SCALE SIMULATIONS AND PHASE STABILITY PREDICTION OF MIXED Li2S1-xSex SYSTEMCliffton Masedi1, Phuti Ngoepe2University of Limpopo, South AfricaAbstractPoster Presentation
110COMPUTATIONAL MODELLING ON STABILITY OF SOLID ELECTROLYTES IN MAGNESIUM ION BATTERIESK Tibane1, M.C Masedi2 and P.E Ngoepe31 Material Modelling Centre, University of Limpopo, Department of Physics, South AfricaAbstractPoster Presentation
111Study about correlation between structural and electrical property of calcium molybdateAnanda Ramires das Neves Stigger, Ramon Danalto Carvalho, Paola Gay dos Santos, Cristiane Raubach Ratmann, Pedro Lovato Gomes, Sergio da Silva Cava, Mateus Meneghetti Ferrer, Mario Lucio Moreira.Federal University of Pelotas, BrasilAbstractPoster Presentation
114The ethylene carbonate adsorption on the major α-Al2O3 (0001) surface: Density functional theory study.Brian Ramogayana 1, David Santos-Carballal 2,3, Khomotso P. Maenetja 1, Nora H. de Leeuw 2,3,4 and Phuti E. Ngoepe 11. Materials Modelling Centre, School of Physical and Mineral Sciences, South Africa. 2. School of Chemistry, Cardiff University, United Kingdom. 3. School of Chemistry, University of Leeds, United Kingdom. 4. Department of Earth Sciences, Utrecht University, The NetherlandsAbstractPoster Presentation
119NUMERICAL ANALYSIS OF THERMOLUMINESCENCE AND ISOTHERMAL LUMINESCENT DECAY CURVELis Ramos Barreto de Almeida¹, Giordano Frederico da Cunha Bispo², Adriano Borges Andrade¹, Zélia Soares Macedo¹, Mário Ernesto Giroldo Valerio¹¹ Laboratory of Preparation and Characterization of Materials, Physics Department, Federal University of Sergipe, Brazil. ² Materials Science and Engineering Post Graduate Program (P2CEM), Federal University of Sergipe, BrazilAbstractPoster Presentation
123TRIVALENT RARE-EARTH DOPANT IN THE KBaPO4 AND KSrPO4 COMPOUNDS: AN ATOMISTIC SIMULATION STUDYGilberto J. Barbosa Junior, Marcos V. dos S. RezendeGrupo de Nanomateriais Funcionais (GNF), Departamento de Física, Universidade Federal de Sergipe, Brazil.AbstractPoster Presentation

NIOBATE NANOCRYSTALS IN NANOBIOPHOTONICS: TOWARDS MULTIMODAL IMAGING & MANIPULATION

L. Vittadello1,2, J. Klenen1,2, K. Kömpe2,3, C. Meyer2,3, A. Paululat2,3, M. Imlau1,2

1 Department of Physics, Osnabrück University, 49076 Osnabrück, Germany (, , )

2 Center for Cellular Nanoanalytics, Osnabrück University, 49076 Osnabrück, Germany

3 Department of Biology/Chemistry, Osnabrück University, 49076 Osnabrück, Germany (, , )

Niobate nanocrystals are increasingly used as imaging markers in nanobiophotonics. The basic principle is based on the frequency conversion of intense IR light, so that harmonic light in the visible spectral range is emitted by the crystals having diameters in the sub-100 nm range.

The use of niobate nanocrystals has a number of advantageous features compared to molecular fluorescence markers or quantum dots, such as the generation of coherent light radiation, without blinking or bleaching and the ability to generate light in a very wide spectral range. This allows novel imaging techniques, or at least marker-based imaging for those cases where established fluorescent markers fail.

However, the potential of niobate nanocrystals goes far beyond the pure application in imaging. In particular, the possibility of doping with rare earth elements and the advanced crystal physical properties, such as pyroelectricity and piezoelectricity, opens up a broad field of novel applications in light-based manipulation of physiological environments. A particularly great advantage is the comprehensive know-how gained over several decades in volume single crystals, which provides an outstanding basis for the study and application of niobate nanocrystals. Despite of this, applications of niobate nanocrystals in the so-called optogenetics field has been scarce so far.

The lecture will first present the current status of the use of niobate nanocrystals. Using KNbO3 as an example, the current approaches to the synthesis of niobate nanocrystals (bottom-up by hydrothermal or solvothermal synthesis vs. top-down by ball milling and etching processes) are summarised and the structural and optical properties are compared with volume single crystals by means of structure elucidation, electron microscopy and spectroscopy. The study of the nonlinear optical properties is performed by means of diffuse reflectance spectroscopy, which allows to derive the optimal laser system parameters for imaging in a laser-pumped nonlinear optical microscope. By matching the pulse repetition rate, average power and photon energy with the absorption spectrum of a Drosophila larva, it is possible to detect the niobate nanocrystals in the heart system of a living Drosophila and thus determine the hemolymph circulation, velocity or flow properties experimentally.

The microscopy system developed especially for these experiments also enables non-linear optical confocal laser microscopy and illumination with several laser pulses of different photon energies, both simultaneous and time-shifted. These properties form the prerequisites for the further study of doped niobate nanocrystals, which will be discussed. Of particular interest are Fe doping, which is associated with the occurrence of the volume photovoltaic effect in Fe-doped KNbO3, or doping with Er or Yb, so that a coupling of frequency conversion processes with luminescence becomes conceivable.

Pulse-induced photoluminescence (PL) and transient absorption (TA) experiments in LiNbO3, in particular their timescales ranging from nanoseconds to minutes in the ultraviolet/visible/ near-infrared region, have been interpreted, as a rule, separately: PL mostly by the generation, transport and recombination of self-trapped excitons, and TA by small polarons with strong coupling. However, the possible interplay between the different species, and the simultaneous presence of parallel radiative and non-radiative decay channels, affecting both PL and TA have been given insufficient consideration, so far.

These shortcomings can be eliminated by systematically using a model of coupled processes with differently time-dependent decay kinetics, and by taking into account, in addition to charged polaronic and dipolar excitonic states, also variously formed pinned excitonic states localized next to dipolar defect complexes1. Exorbitantly long lifetimes of PL and TA components in doped systems can be explained by excitons pinned on charge compensated dopant ions, while nanosecond-scale PL lifetimes in undoped congruent LiNbO3 can be attributed to excitons trapped on complexes containing NbLi antisites. The role of hopping polarons is limited to causing the ‘regular’ microsecond-scale TA component and yielding an alternative path for the formation of long-lived pinned-excitonic states active in long PL and long TA.

We discuss the validity of the proposed models and scenarios for the treatment of stretched exponential or other time-dependent kinetics in other cases, including complex condensed systems ranging from nanocrystals and polymers to liquids and biophysical systems.

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1G. Corradi, A. Krampf, S. Messerschmidt, L. Vittadello, M. Imlau, J. Phys. Condens. Matter 32, 413005 (2020)

Oral Session 3: Point defects in insulators and wide-band-gap systems. Low dimensional, thin films and nano-morphological systems.

2Correlations between morphology, defectiveness, and luminescence in ZnO from bulk to nano-size systemsRoberta Crapanzano, Irene Villa, Silvia Mostoni, Massimiliano D’Arienzo, Barbara Di Credico, Mauro Fasoli, Roberto Scotti, and Anna VeddaUniversity of Milano - Bicocca, Italy.AbstractOral Presentation
5ESTABLISHMENT OF CONDITIONS TO IMPROVE THE LUMINESCENCE PROPERTIES OF ZnSe FOR ITS APPLICATION AS A SCINTILLATING BOLOMETER IN THE SEARCH FOR 0νββ DECAYRaphaela de Oliveira, Klaus KrambrockFederal University of Minas Gerais (UFMG), BrasilAbstractOral Presentation
6Identification and thermal stability of point defects in neutron-irradiated hexagonal boron nitride (h-BN)José Roberto de Toledo, Klaus KrambrockUniversidade Federal de Minas Gerais, Brasil.AbstractOral Presentation
8Tuning the electronic and magnetic properties of monolayer phosphorene by doping and strainJuliana Morbec, Gul Rahman, Peter KratzerSchool of Chemical and Physical Sciences, Keele University, U. Department of Physics, Quaid-i-Azam University, Pakistan. Faculty of Physics, University of Duisburg-Essen, Germany.AbstractOral Presentation
29TRANSPARENT GLASS-CERAMICS AND HYBRID COMPOSITES AS PERSPECTIVE MATERIALS FOR DEVELOPMENT OF NEW WHITE LIGHT EMITTING DIODESSerhii NedilkoTaras Shevchenko National University of Kyiv, Ukraine.AbstractOral Presentation
66STRUCTURAL AND PHOTOCONVERSION PROPERTIES OF Tb3Al5O12:Ce SINGLE CRYSTALLINE FILMS FOR WLED APPLICATIONAnton Markovskyi1*, Vitalii Gorbenko1, Tetiana Zorenko1, Michal Pakula2, Mariusz Kaczmarek2, Miroslaw Batentschuk3, Jack Elia3, Yuriy Zorenko1*1 Institute of Physics, Kazimierz Wielki University, Poland. 2 Mechatronics Department, Kazimierz Wielki University, Poland. 3 Institute of Materials for Electronics and Energy Technology, University of Erlangen-Nuremberg, Germany.AbstractOral Presentation
125RECOMBINATION LUMINESCENCE IN PURE AND DOPED AlNBaiba Berzina, Laima Trinkler, Rihards Ruska, Janis CipaInstitute of Solid State Physics, University of Latvia, Latvia.AbstractOral Presentation

Poster Session 3: Low dimensional, thin films & nano-morphological systems. Point defects in insulators and wide-band-gap systems.

1STONE - WALES DEFECT IN SILICENE - STRUCTURAL AND ELECTRONIC PROPERTIESJOANDSON BATA DOS SANTOS, KLEBER ANDERSON TEIXEIRA DA SILVAINSTITUTO FEDERAL DO MARANHÃO, BrasilAbstractPoster Presentation
3Defect compensation in the P-type transparent oxide Ba2BiTaO6Diana Dahliah, Gian-Marco Rignanese, Geoffroy HautierInstitute of Condensed Matter and Nanosciences IMCN), Université catholique de Louvain (UCLouvain), BelgiumAbstractPoster Presentation
39SPATIAL DISTRIBUTION OF THE Mn2+ IONS IN NANOSTRUCTURED ZnO FILMSMariana Stefan, Daniela Ghica, Corneliu Ghica, Valentin A. MaraloiuNational Institute of Materials Physics, Magurele, RomaniaAbstractPoster Presentation
40DOPANT DISTRIBUTION ENGINEERING IN ZnO:Mn NANOCRYSTALSDaniela Ghica, Mariana Stefan, Ioana D. VlaicuNational Institute of Materials Physics, Magurele, RomaniaAbstractPoster Presentation
44INTERACTION OF CHROMATE OXYANIONS WITH CARBON NANOSTRUCTURES: TD-DFT CALCULATIONS OF EXCITED ELECTRONIC STATES AND POSSIBILITY OF THE OPTICAL MONITORINGViktor Borysiuk, Sergii Nedilko, Yuriy HizhnyiTaras Shevchenko National University of Kyiv, UkraineAbstractPoster Presentation
48CONTROLLING OPTICAL AND MICROSTRUCTURAL PROPERTIES OF ZINC OXIDE NANOPARTICLES BY ULTRASONIC TREATMENTMaria de Andrade Gomes, Lorena Feitoza Aragão Domingos, Naiara Silva dos Santos, Adriano Borges Andrade, Mário Ernesto Giroldo Valerio and Zélia Soares MacedoLaboratory of Preparation and Characterization of Materials, Physics Department, Federal University of Sergipe, BrazilAbstractPoster Presentation
49INFLUENCE OF THE CHEMICAL NATURE OF THE DEPOSITION SOLUTION FOR FORMATION OF HETEROSTRUCTURAL BVO FILMSWayler Silva dos Santos , Éder José do Carmo, Lucas Leão Nascimento, Antônio Otávio de Toledo Patrocínio and José de los Santos Guerra.Group of Ferroelectrics and Multifunctional Materials, Institute of Physics, Federal University of Uberlandia, Brasil. Laboratory of Photochemistry and Materials Science, Institute of Chemistry, Federal University of Uberlandia, Brazil.AbstractPoster Presentation
50PRODUCTION AND CHARACTERIZATION OF COMPOSITE FILMS BASED ON CDWO4-PSThaise de Jesus Monteiro1, Adriano Borges Andrade1, Suellen Maria Valeriano Novais2, Maria de Andrade Gomes1, Zélia Soares Macedo1, Mário Ernesto Giroldo Valerio1.1 Laboratory of Preparation and Characterization of Materials, Department of Physics, Federal University of Sergipe, Brazil. 2 Federal University of the Recôncavo da Bahia, Brazil.AbstractPoster Presentation
72STRUCTURAL AND MICROSTRUCTURAL CHARACTERIZATION OF (Bi0.5Na0.5) TiO3 BASED FERROELECTRIC CERAMICSBianca Reis Moya, Aimé Peláiz Barranco, José de los Santos Guerra.UNESP, Brasil. Universidad de La Habana, Cuba. Federal University of Uberlândia, Brasil.AbstractPoster Presentation
102ANTIREFLECTIVE SURFACE FOR THE GLASS COVERS OF SOLAR CELLSRamon Dadalto Carvalho, Ananda Ramires das Neves Stigger, Paola Gay dos Santos, Pedro Lovato Gomes Jardim, Cristiane Raubach Ratmann, Sérgio da Silva Cava, Mario Lucio MoreiraFederal University of Pelotas, Brasil.AbstractPoster Presentation
107INFLUENCE OF Ca2+ IMPURITIES ON OPTICAL PROPERTIES OF THE La1-xSmxVO4 NANOPARTICLESChukova O., Dorofeeva A., Nedilko S.A., Nedilko S.G., Voitenko T., Paszkowicz W., Rahimi Mosafer H.S., Androulidaki M., Papadopoulos A., Stratakis E.Taras Shevchenko National University of Kyiv, Ukraine. Institute of Physics of Polish Academy of Sciences, Poland. Institute of Electronic Structure & Laser of Foundation for Research & Technology Hellas, Crete.AbstractPoster Presentation

IMPURITY IONS IN LASER MOLECULAR BEAM EPITAXY-GROWN OXIDE FILMS: A FLUORESCENCE SPECTROSCOPY STUDY

S.P. Feofilov, A.B. Kulinkin, A.K. Kaveev, A.M. Korovin, N.S. Sokolov, S.M. Suturin (Ioffe Institute, St. Petersburg, Russia)

Insulating oxide epitaxial nanostructures produced by laser molecular beam epitaxy (LMBE) technique can be promising candidates for realizing beyond state of the art devices.

Cr3+ and Eu3+ ions doped MgO, MgAl2O4 and Y2O3 films (5–200 nm) were grown on different substrates with the use of LMBE system based on KrF excimer laser.

The fluorescence spectra of MgO:Cr3+ films revealed strong inhomogeneous broadening. It is shown that in such situation the measurements of the 2E state radiative lifetimes may be used for diagnostics of lattice distortions in epitaxial films. [1]

The spectra of MgAl2O4:Cr3+ films reflect Al/Mg inversion in the lattice. The possibility to obtain normal (non-inversed) spinel films is discussed. [2]

In Y2O3:Eu3+ films the variations of the radiative lifetimes of Eu3+ 5D0 level with the index of refraction of the medium surrounding the sample were observed. The effect was explained by the local field and photon density of states modification due to the nearby interfaces.

[1] S.P. Feofilov, A.B. Kulinkin, A.K. Kaveev, N.S. Sokolov, S.M. Suturin. Opt. Mat. 83, 43 (2018).

[2] S.P. Feofilov, A.B. Kulinkin, A.K. Kaveev, N.S. Sokolov, S.M. Suturin. Thin Solid Films 693, 137732 (2020).

Luminescence properties of point defects in insulating materials are successfully used for solid state light sources and radiation sensors. The peculiar photoluminescence characteristics of colour centres in lithium fluoride (LiF), well known for applications in optically-pumped tuneable lasers and miniaturized light-emitting photonic devices operating at room-temperature, are exploited in passive ionizing-radiation imaging detectors and dosimeters based on visible radiophotoluminescence in LiF crystals and polycrystalline thin films. Their peculiarities, such as very high intrinsic spatial resolution, wide dynamic range and large field of view, combined with easy handling, ambient-light operation and no development need, allow to successfully extend their use from X-ray imaging to proton beam advanced diagnostics and dosimetry, even at dose values that are typical of hadrotherapy. A review of the properties of LiF-based detectors and dosimeters is presented together with the main results, with the aim to discuss challenges related to control the radiophotoluminescence response in both bulk and thin film forms.

Oral Session 4: Defects and material preparation technology & materials synthesis.

28Development of One-Pot Green Magnetic Composites for Methylene Blue RemovalFelipe Abreu da Silva, Marcelo Pereira da Rosa, Renato Pereira de Melo, Sergio da Silva Cava, Paulo Henrique Beck Federal University of Rio Grande, Brasil.AbstractOral Presentation
37PREPARATION OF RARE-EARTH-DOPED LITHIUM NIOBATE NANOCRYSTALS BY BALL MILLING METHODGabriella Dravecz, Laura Kocsor, László Péter, L. Kovács, Zsolt KisWigner Research Centre for Physics, Budapest, HungaryAbstractOral Presentation
45USING POINT DEFECTS TO REDUCE THE COERCIVE VOLTAGE IN MULTIFERROIC MATERIALSPetrucio Barrozo Physics Department, Federal University of Sergipe, Brasil.AbstractOral Presentation
86Determination of solidus and liquidus temperatures of soft and hard lead-free piezoelectric oxides by thermal analysisThissiana da Cunha Fernandes, José Antônio Eiras, Manuel Henrique LenteFederal University of São Paulo, Brasil. Federal University of São Carlos, Brasil.AbstractOral Presentation
113CONTROLLING THE PROPERTIES OF MN-RICH CARBONATE PRECURSORS USING CO-PRECIPITATION SYNTHESIS IN A SEMI-BATCH REACTORNoko N. Ngoepe, Arturo Gutierrez, Jason R. CroyMaterials Modelling Centre, School of Physical and Mineral Sciences, University of Limpopo,South Africa. Electrochemical Energy Storage Department, Chemical Sciences and Engineering Division, Argonne National Laboratory, USA.AbstractOral Presentation
117PRODUCTION OF POLYMERIC FILMS FROM RECYCLED EPS, PINECONE EXTRACTED LIGNIN AND POLYETHYLENE GLYCOLPaulo Marengo Trindade Júnior, Kerenlyn Oliveira, Paulo Henrique Beck, Renato MeloFederal University of Rio Grande (FURG), BrasilAbstractOral Presentation
122Study of the growth of the polycrystalline structure MgMoO4 H2OAndré Renato Mello Sanches[1], Ananda Ramirez das Neves Stigger[2], Matheus Meneghetti Ferrer[3], Mário Lúcio Moreira[4]Federal University of Pelotas, BrasilAbstractOral Presentation
127Unveiling the unorthodox red persistent luminescence behavior of SrS:Eu2+,RE3+ materialsDanilo Ormeni Almeida dos Santos, Luidgi Giordano, Miguel Aguirre Stock Grein Barbará, Marcelo Cecconi Portes, Verônica Carvalho Teixeira, Lucas Carvalho Veloso RodriguesInstitute of Chemistry, University of São Paulo, Brasil. Brazilian Synchrotron Light Laboratory, Brasil.AbstractOral Presentation
128Evaluation of defect sites for Gd3(Ga,Al)5O12 Based Transparent Ceramics Prepared by the Spark Plasma Sintering ProcessS. Kurosawa1,2, H. Sone3, H. Ujiie3, Y. Kurashima2, A. Yamaji1, K. Kamada1,2,4, M. Yoshino2, S. Toyoda1, H. Sato1, Y. Yokota1, Y. Ohashi1, A. Yoshikawa1,2,41 New Industry Creation Hatchery Center, Tohoku University, Japan. 2 Institute for Materials Research, Tohoku University, Japan. 3 Industrial Technology Institute, Miyagi Prefectural Government, Japan.AbstractOral Presentation

Poster Session 4: Defects and material preparation technology & materials synthesis. Defects in application-minded materials & interdisciplinarity.

23ENCAPSULATION OF YTTRIUM OXIDE NANOPARTICLES (Y2O3) PRODUCED WITH TRIBLOCK POLYMER FOR APPLICATION IN NANOSENSORSLorena Feitoza Aragão Domingos, Antônio Carlos, Maria de Andrade Gomes, Márcio André Rodrigues Cavalcanti de Alencar and Zélia Soares Macedo.Department of Physics, Federal University of Sergipe, Brazil.AbstractPoster Presentation
25CRYSTALLINE FORMATION OF CdSiO3 THROUGH MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESISNicolle G. C. M. Parra¹, Maria A. Gomes¹, Mário Ernesto G. Valério¹ and Zélia S. Macedo¹¹Laboratory of Preparation and Characterization of Materials (LPCM), Physics Department, Federal University of Sergipe, BrasilAbstractPoster Presentation
26STUDY OF THE SYNTHESIS PARAMETERS IN THE STRUCTURAL AND MICROSTRUCTURAL PROPERTIES OF ZnO NANOPARTICLES SYNTHESISED BY SONOCHEMICAL ROUTENaiara Silva dos Santos, Lorena Feitoza Aragão Domingos, Maria De Andrade Gomes, Mário Ernesto Giroldo Valério E Zelia Soares MacedoPhysics Department, Federal University of Sergipe, BrazilAbstractPoster Presentation
52SYNTHESIS AND PROPERTIES OF BIO-GLASS-CERAMIC MATERIALS FOR BIOMEDICAL APPLICATIONSLeonardo Levy dos Santos 1, Yanela Mendez González 2, Atair Carvalho da Silva 3, Renato Cruvinel 4, Noélio Oliviera Dantas 5, José de los Santos Guerra 6Group of Ferroelectrics and Multifunctional Materials, Institute of Physics, Federal University of Uberlandia, Brazil. Facultad de Física - Instituto de Ciencia y Tecnología de Materiales, Universidad de La Habana – Cuba. Instituto Federal Goiano, Brasil. Laboratório de Novos Materiais Isolantes e Semicondutores, Instituto de Física, Universidade Federal de Alagoas, Brazil.AbstractPoster Presentation
63INVESTIGATION OF THE STRUCTURAL PROPERTIES OF PbZr0.65Ti0.35O3–Ni0.5Zn0.5Fe2O3 MULTIFERROIC CERAMIC COMPOSITESRoney Junio de Portugal 1, Marco Aurélio de Oliveira 2, Atair Carvalho Silva 3, José de los Santos Guerra 4Group of Ferroelectrics and Multifunctional Materials, Institute of Physics, Federal University of Uberlandia, Brazil. Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro, Brazil.AbstractPoster Presentation
70DEFECTS MINIMIZATION PROMOTED BY LEAD VOLATILITY IN (Pb,La)(Zr,Ti)O3 FERROELECTRIC CERAMICSAtair Carvalho da Silva, Yanela Mendez González, Elton Carvalho de Lima, José de los Santos Guerra,Group of Ferroelectrics and Multifunctional Materials, Institute of Physics, Federal University of Uberlândia, Brazil. Facultad de Física-Instituto de Ciencia y Tecnología de Materiales, Universidad de La Habana, Cuba. Federal University of Tocantins, Brazil.AbstractPoster Presentation
73STUDY OF PHYSICAL PROPERTIES OF KNbO3-BASED ELECTRO-CERAMICSMykaelle Cristina Oliveira Silva, Atair Carvalho da Silva, Marco Aurélio de Oliveira, Yanela Mendez-González, Adamo Ferreira Gomes do Monte, Jean-Claude M'Peko, Antonio Carlos Hernandes, Jose De los Santos Guerra.Federal University of Uberlândia, Federal University of Uberlândia, Federal University of Uberlândia, University of Havana, Federal University of Uberlândia, University of São Paulo - IFSC, University of São Paulo - IFSC, Federal University of Uberlândia.AbstractPoster Presentation
87SYNTHESIS AND STUDY OF AgNbO3-BASED ANTIFERROELECTRIC MATERIALS FOR ENERGY STORAGE APPLICATIONSKarine Felix Santos de Jesus, Atair Carvalho da Silva, Jose de los Santos GuerraUniversidade Federal de Uberlândia, Brasil.AbstractPoster Presentation
90EU VALENCE IN BaTiO3 DECORATED WITH CaF2 FOR APPLICATION IN PHOTOANODESTatiane Strelow Lilge¹, Simone dos Santos Melo1, Giordano da Cunha Bispo1, Zélia Soares Macedo1, Mario Lucio Moreira2, Mário Ernesto Giroldo Valerio11- Federal University of Sergipe, Brasil. 2- Federal University of Pelotas, Brasil.AbstractPoster Presentation
95EPR CHARACTERIZATION OF Gd3+ IMPURITY IONS IN Li6Y(BO3)3 SINGLE CRYSTALSMaarten De Coen,1 Henk Vrielinck,1 Freddy Callens,1 Éva Tichy-Rács,2 Gábor Corradi,2 László Kovács,21 Ghent University, Dept. Solid State Sciences, Belgium. 2 Wigner Research Centre for Physics, Hungary,AbstractPoster Presentation
97SYNTHESIS AND CHARACTERIZATION OF Bi1-xLaxFeO3 MULTIFERROIC THIN FILMSMarcos Aparecido dos Santos Mariano, Yanela Mendez González, José de los Santos GuerraFederal University of Uberlândia, Brasil. Universidad de La Havana, CubaAbstractPoster Presentation
103Material synthesis, structure and optical characterization of the Fe-doped BaZrO3 perovskitePaola Gay dos Santos, Ananda Ramires das Neves Stigger, Ramon Dadalto Carvalho, Pedro Lovato Gomes Jardim, Cristiane Raubach Ratmann, Sérgio da Silva Cava, Mateus Meneghetti Ferrer, Mario Lucio MoreiraFederal University of Pelotas, BrasilAbstractPoster Presentation

SIRIUS, THE NEW BRAZILIAN SYNCHROTRON LIGHT SOURCE

Harry Westfahl Jr. (Director, Brazilian Synchrotron Light Laboratory - LNLS, CNPEM, Brasil)

Sirius, the new Brazilian Synchrotron Light Source, is the largest and most complex scientific infrastructure ever built in Brazil. It is one of the world’s first fourth-generation synchrotron light sources, comparable only to MAX IV in Sweden and the recently upgraded European Synchrotron Radiation Facility (ESRF-EBS) situated in Grenoble, France. The design and construction principles of this new Brazilian 3 GeV light source were envisaged to optimize production and use of coherent x-rays, with in-house developments ranging from the multi-bend magnetic lattice, to high-dynamic active feedback opto-mechanical devices, and fast, low-noise area detectors. This new facility will provide cutting edge research tools that are nonexistent today in Brazil and place the country among the world leaders in this type of technology, which allows analysis of synthetic and biological materials in time and length scales unprecedented in the current state of the art. This new tool will leverage the development of research in strategic areas such as energy, food, environment, health, defense and many others. The first 6 beamlines of Sirius are in different stages of construction/commissioning and the first results obtained in commissioning phase from the MANACÁ (protein crystallography) are already very promising. In this talk I will overview the main characteristics, potentialities, status of the project and the initial results from commissioning.

DEVELOPMENT OF ADVANCED MULTILAYER COMPOSITE SCINTILLATORS BASED ON EPITAXIAL STRUCTURES OF GARNET COMPOUNDS

Yu. Zorenko1, V. Gorbenko1, S. Witkiewicz-Lukaszek1, Y. Syrotych1, T. Zorenko1, K. Bartosiewicz1, J.A. Mares2, M. Nikl2, O. Sidletskiy3, K. Kamada4, S. Kurosawa4, A. Yoshikawa4

1Institute of Physic, UKW in Bydgoszcz, Powstańców Wielkopolskich str., 2, 85-090 Bydgoszcz, Poland

2Institute of Physics, AS of Czech Republic, Cukrovarnicka str., 10, 16253 Prague, Czech Republic

3Institute for Scintillation Materials, NAS of Ukraine, av. Nauky, 60, 61001 Kharkiv, Ukraine

4Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

This report presents the latest results in the development of multilayer composite scintillators of phoswich-type (phosphor sandwich) based on single crystalline films (SCF) and single crystals (SC) of garnet compounds using the liquid-phase epitaxy (LPE) growth method for application in environment radiation monitoring for simultaneous registration of different types of ionizing radiation (particles and quanta) in mixed ionization fluxes [1-5], as well as for scintillating screens in the microimaging technique [6]. Such composite scintillators present the multilayer epitaxial structures containing one or two film scintillators grown „step-by-step” onto substrates from crystal scintillators using the LPE method. Films and crystal parts of the composite scintillators were fabricated from “as best as possible” effective scintillation materials on the basis of Ce3+, Pr3+ and Sc3+ doped Lu3Al5O12 garnets [1-3] (case of homoepitaxial growth) and the Ce3+ doped R3B5O12 (R= Gd, Lu, Tb; B=Al, Ga) mixed garnets [4, 5](case of heteroepitaxial growth) with various scintillation decay kinetics due to the different types of dopants [1-3] and various garnet content [4, 5].

The report presents the results of our latest achievement on fabrication of new two-layered composite scintillators of Gd3A3.85-2.35Ga1.15-2.65O12:Ce SCF/Gd3Al3-2.5Ga2.5O12:Ce SC and TbAG:Ce SCF/Gd3Al2.3-2Ga2.7-3O12:Ce SC types as well as the advanced three-layered YAG:Ce SCF/LuAG:Pr SCF/LuAG:Sc SC, YAG:Ce SCF/TbAG:Ce SCF/Gd3Al2.5Ga2.5O12:Ce SC and TbAG:Ce SCF/ Gd3Al3-2.5Ga2-2.5O12:Ce SCF/Gd3Al2Ga3O12:Ce SC composite scintillators based on the crystals and films of the above mentioned garnet compounds by the LPE growth method.

The results of investigation of their luminescent and scintillation properties were presented as well. The testing of the mentioned prototypes of two- and three-layered composite scintillators for simultaneous registration of α- and β- particles and γ-quanta was performed and the obtained results were analysed for the optimization of their composition and a figure-of merit of scintillation.

References

[1] S. Witkiewicz-Lukaszek, V. Gorbenko, T. Zorenko, K. Paprocki, O. Sidletskiy, I. Gerasymov, J. A. Mares, R. Kucerkova, M. Nikl, and Yu. Zorenko, IEEE TNS, 2018, 65, 2114-2119.

[2] S. Witkiewicz-Lukaszek, V. Gorbenko, T. Zorenko, K. Paprocki, O. Sidletski, I. Gerasymov, J.A.Mares, R. Kucerkova, M. Nikl, Yu. Zorenko, Optical Materials, 2018, 84, 593-599.

[3] J.A. Mares, S. Witkiewicz-Lukaszek, V. Gorbenko, T. Zorenko, R. Kucerkova, A. Beitlerova, C. D′Ambrosio, J. Dlouhy, M. Nikl, Yu Zorenko, Optical Materials, 2019, 96, 109268

[3] S. Witkiewicz-Lukaszek, V. Gorbenko, T. Zorenko, O. Sidletskiy, I. Gerasymov, A. Fedorov, A. Yoshikawa, J. A. Mares, M. Nikl, and Yu. Zorenko, Crystal Growth & Design 2018, 18, 842.

[4] S. Witkiewicz-Lukaszek, V. Gorbenko, T. Zorenko, K. Paprocki, O. Sidletskiy, A. Fedorov, J.A. Mares, R. Kucerkova, M. Nikl, Yu. Zorenko. CrystEngComm, 2018, 20, 3994-4002.

[5] S. Witkiewicz-Lukaszek, V. Gorbenko, T. Zorenko, O. Sidletskiy, P. Arhipov, A. Fedorov, J.A. Mares, R. Kucerkova, M. Nikl, Yu. Zorenko, CrystEngComm, 2020, 22, 3713-3724

[6] Yu. Zorenko, P.-A. Douissard, T. Martin, F. Riva, V. Gorbenko, T. Zorenko, K. Paprocki, A. Iskalieva, S. Witkiewicz, A. Fedorov, P. Bilski, A. Twardak, Optical Materials, 2017, 65, 73.


Acknowledgements: The work was supported by Polish NCN 2018/31/B/ST8/03390 project, Czech National Foundation 16-15569S project and Japanese 2018SV11 ICC-IMR Tohoku University project.

Oral Session 5: Scintillation, energy transfer & storage, carrier trapping phenomena . Radiation effects, radiation-induced defects, colour centres & material damage.

4Trapping mechanisms and delayed scintillation processes in Ce-doped sol-gel silica fibersFrancesca Cova, Federico Moretti, Christophe Dujardin, Norberto Chiodini, Anna VeddaUniversity of Milano - Bicocca, Italy. Lawrence Berkeley National Laboratory, USA.University Claude Bernard Lyon 1, France. Institut Lumière Matière, France.AbstractOral Presentation
36Multiple defects in persistent phosphors: don't ignore the thermally inaccessible traps!David Van der Heggen, Dimitri Vandenberghe, Nasrin K. Moayed, Johan De Grave, Philippe F. Smet, Jonas J. JoosLumiLab, Department of Solid State Sciences, Ghent University, Belgium. Laboratory of Mineralogy and Petrology, Department of Geology, Ghent University, Belgium.AbstractOral Presentation
67Ionizing radiation spectrometry using color centers created in lithium fluoride crystalsMałgorzata Sankowska, Paweł Bilski, Barbara Marczewska, Wojciech Gieszczyk, Mariusz Kłosowski, Jerzy Wojciech MietelskiInstitute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), Poland.AbstractOral Presentation
93ENERGY TRANSFER TO CERIUM DOPANT IN GADOLINIUM COMPOUNDS EXCITED IN THE FUNDAMENTAL ABSORPTION REGIONA. Belsky1, I.Kamenskikh2, O. Sidletskiy3, A.N.Vasil’ev41 CELIA, Université de Bordeaux, CNRS, CEA, France. 2 Physics Department, M.V. Lomonosov Moscow State University, Russia. 3 Institute for Scintillation Materials, Ukraine. 4 Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Russia.AbstractOral Presentation
100STUDY ON TRAP LEVELS IN Ln3+ DOPED LiYF4 THROUGH THERMOLUMINESCENCE AND SCHEME OF ENERGY LEVELSAdriano Borges Andrade1,2, Giordano Frederico da Cunha Bispo1,2, Maria de Andrade Gomes1, Zélia Soares Macedo1,2, and Mário Ernesto Giroldo Valerio1,21 Laboratory of Preparation and Characterisation of Materials, Physics Department, Federal University of Sergipe, Brasil. 2 Materials Science and Engineering Post Graduation Program, Federal University of Sergipe, Brasil.AbstractOral Presentation
121RESPONSE OF SILVER-ACTIVATED METAPHOSPHATE GLASS TO ULTRAVIOLET-LIGHT STIMULATIONLuis Miguel Gomes Abegão (1), Francesco d’Errico (1,2)1 School of Medicine, Yale University, USA. 2 Scuola di Ingegneria, Università di Pisa, Italy.AbstractOral Presentation
129ALEXANDRITE: DEVELOPMENT OF A NATURAL RADIATION DETECTORNeilo Marcos Trindade1, Matheus Cavalcanti dos Santos Nunes1, Stephanie Lins Dardengo1, Luiz Gustavo Jacobsohn2, Roseli Kunzel3, Luan Santos Lima4, Elisabeth Matheus Yoshimura41 Department of Physics, Federal Institute of Education, Science and Technology of São Paulo, Brazil. 2 Department of Materials Science and Engineering, Clemson University, USA.3 Department of Physics, Federal University of São Paulo, Brazil. 4 Institute of Physics, University of São Paulo, Brazil. AbstractOral Presentation

Poster Session 5: Scintillation, energy transfer & storage, carrier trapping phenomena . Radiation effects, radiation-induced defects, colour centres & material damage.

7Perovskite and garnet scintillators co-doped by Ca2+ and Mg2+ ions with favorable timing propertiesM. Kucera, M. Rathaiah, M. Nikl, A. Beitlerova, R. KucerkovaCharles University, Faculty Math. & Physics, Czech Republic, Institute of Physics ASCR, Czech Republic.AbstractPoster Presentation
21A STUDY OF COLOUR CENTERS IN NATURAL AND SYNTHETIC AMETHYSTJanaina Bastos Depianti, Maurício Veloso Brant Pinheiro, Marcus Vinícius Dutra de Magalhães, Klaus KrambrockFederal University of Espírito Santo, Brasil. Federal University of Minas Gerais, Brasil.AbstractPoster Presentation
22RECENT PROGRESSES IN Yb-DOPED SILICA OPTICAL FIBRE RADIOLUMINESCENT DOSIMETERSPelizzoli Marco1, Chiodini Norberto2, Cialdi Simone1,3, Latorre Stefano3, Gallo Salvatore1,3, Fumagalli Maria Luisa4, De Martin Elena4, Mones Eleonora5, Loi Gianfranco5, Pittà Giuseppe6, Veronese Ivan1,31 Department of Physics, University of Milano, Italy. 2 Department of Materials Science, University of Milano - Bicocca, Italy. 3 National Institute of Nuclear Physics (INFN) Section of Milan, Italy. 4 Fisica medica-Direzione Sanitaria-Fondazione IRCCS Istituto Neurologico C. Besta, Milan, Italy. 5 Medical Physics Department, Azienda Ospedaliero Universitaria Maggiore della Carità, Italy. 6 DE.TEC.TOR. S.r.l., Devices & Technologies Torino, Italy.AbstractPoster Presentation
30INFLUENCE OF Sc CATION SUBSTITUENT ON ENERGY TRANSFER PROCESSES IN GAGG:Ce CRYSTALSDmitry Spassky1, Nina Kozlova2, Evgeniia Zabelina2, Valentina Kasimova2, Nataliya Krutyak3, Alisa Ukhanova31 Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Russia. 2 National University of Science and Technology MISiS, Russia. 3 Physics Department, M.V. Lomonosov Moscow State University, Russia.AbstractPoster Presentation
32THEORETICAL RESEARCH OF ELECTRON ENERGY STRUCTURE OF CeBr2I AND CeBrI2 CRYSTALSVladyslav Karnaushenko, Yaroslav Chornodolskyy, Vitaliy Vistovskyy, Stepan Syrotyuk, Anatoliy VoloshinovskiiIvan Franko National University of Lviv, Ukraine. Lviv Polytechnic National University, Ukraine.AbstractPoster Presentation
41OPTICAL CHARACTERISTICS OF Gd3Al2Ga3O12:Ce CRYSTALS UNDER ELECTRON IRRADIATIONE. Zabelina1, N. Kozlova1, V. Kasimova1, O. Buzanov2, D. Spassky3, P. Lagov1,4, Y. Pavlov41 National University of Science and Technology MISiS,Russia. 2 JSC "Fomos-Materials" Co.,Moscow, Russia. 3 Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Russia. 4 A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPСE RAS), Russia.AbstractPoster Presentation
42OPTICAL CHARACTERISTICS OF LANGASITE-TYPE CRYSTALS UNDER DIFFERENT TYPE OF IRRADIATIONE. Zabelina1, N. Kozlova1, V. Kasimova1, O. Buzanov2, D. Spassky3, P. Lagov1,4, Y. Pavlov4, V. Stolbunov5, T. Kulevoy5, A. Suvorov6, O. Kuharchuk6, N. Garanin61National University of Science and Technology MISiS, Russia. 2 JSC "Fomos-Materials" Co., Moscow, Russia. 3 Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Russia. 4 A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPСE RAS), Russia. 5 Institute of Theoretical and Experimental Physics (ITEP), Russia. 6 JSC "SSC RF – IPPE", RussiaAbstractPoster Presentation
43RADIATION-INDUCED CHEMICAL DEFECTS IN SOLID ARGON DOPED WITH METHANEE. Savchenko 1, I. Khyzhniy 1, S. Uyutnov 1, M. Bludov 11 B. Verkin Institute for Low Temperature Physics & Engineering NASU, UkraineAbstractPoster Presentation
75SYNERGISTIC EFFECT IN BAF2 SCINTILLATOR-POLYSTYRENE COMPOSITE FILMSRayssa Lima Costa Coura 1,2*, Adriano Borges Andrade 1,2, Thaise de Jesus Monteiro 2, Zélia Soares Macedo 1,2, Mário Ernesto Giroldo Valerio 1,21 Materials Science and Engineering Department, Federal University of Sergipe, Brazil. 2 Laboratory of Preparation and Characterization of Materials (LPCM), Physics Department, Federal University of Sergipe, Brazil.AbstractPoster Presentation
85COMPOSITE SCINTILLATORS BASED ON THE EPITAXIAL STRUCTURES OF PEROVSKITES COMPOUNDSYurii Syrotych, S. Witkiewicz-Lukaszek, Vitaliy Gorbenko, Tetiana Zorenko, Yuriy ZorenkoInstitute of Physics, Kazimierz Wielki University in Bydgoszcz, PolandAbstractPoster Presentation
89RISE-ON TIME IN LUMINESCENCE KINETICS OF CeF3 UNDER FEMTOSECOND AND PICOSECOND VUV AND X-RAY EXCITATIONAndrey Belsky, Irina Kamenskikh, Marco Kirm, Patrick Martin, Nikita Fedorov, Sergey Omelkov, Elizaveta Rubtsova, Evgeny Tishchenko, Andrey N. Vasil'evCELIA, Université de Bordeaux, CNRS, CEA, France. Physics Department, M.V. Lomonosov Moscow State University, Russia. Institute of Physics, University of Tartu, Estonia. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Russia.AbstractPoster Presentation
98LUMINESCENT, SCINTILLATION AND PHOTOCONVERSION PROPERTIES OF SINGLE CRYSTALLINE FILMS OF R3Al5O12:Ce (R= Lu, Y, Tb) GARNETSA. Majewski-Napierkowski, V. Gorbenko, Y. Syrotych, A. Markovskiy, S. Witkiewicz-Lukaszek, T. Zorenko, Yu. ZorenkoKazimierz Wielki University in Bydgoszcz, Poland.AbstractPoster Presentation
104Vacancy-type defects in Gd3Al2Ga3O12:Ce crystals revealed by gamma-ray-induced positron annihilation lifetime spectroscopyMamoru Kitaura 1, Kosuke Fujimori 1, Yoshitaka Taira 2,3, Masaki Fujimoto 2,3, Heishun Zen 4, Kei Kamada 5, Tetsuya Hirade 6, Akimasa. Ohnishi 11 Faculty of Science, Yamagata University, Japan. 2 UVSOR Synchrotron Facility, Institute for Molecular Science, Japan. 3 School of Physical Science, The Graduate University for Advanced Studies, Japan. 4 Institute of Advanced Energy, Kyoto University, Japan. 5 New Industry Creation Hatchery Center, Tohoku University, Japan. 6 Nuclear Science and Technology Center, Japan Atomic Energy Agency, Japan.AbstractPoster Presentation
120ENHANCEMENT OF BGO CERAMIC SCINTILLATORS THROUGH A HOT-PRESSING METHODOLOGYIvus Lorenzo Oliveira Matos, Adriano Borges Andrade, Zélia Macedo Soares, Mário Ernesto Giroldo ValerioFederal University of Sergipe, Brasil.AbstractPoster Presentation
126INVESTIGATION OF DOSE-RATE EFFECTS IN THE THERMOLUMINESCENCE OF LiF:Mg,Ti (TLD-100)Dimitry Ginzburg, Leonid Oster, Ilan Eliyahu, Galina Reshes, Shlomo Biderman, Alexander Shapiro, Yosef Assor and Yigal Shalom HorowitzDepartment of Biotechnology Engineering, Ben Gurion University of the Negev, Israel. Physics Unit, Sami Shamoon College of Engineering, Israel. Nuclear Physics and Engineering Department, Soreq Nuclear Research Center, Israel. Physics Department, Ben Gurion University of the Negev, Israel.AbstractPoster Presentation

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