In Year 2 the training and joint activities between FZU and UNIMIB were mainly focused on the following topics:
Members of the UNIMIB group were trained in time-resolved luminescence spectroscopy under light, X-rays and gamma rays excitation incuding light yield measurements and their evaluation and interpretation. During the 10 days in May that he spent at the FZU facilities in Prague, Jacopo Remondina from UNIMIB performed radio-luminescence experiments on nanostructured glass ceramics with gallium oxide, made comparisons between bulk samples and thin films and investigated of the role of thermal treatments. His colleague Mauro Fasoli during his visit at FZU in June, 2017, received training of electron spin resonance experiments and participated in discussions and evaluation of optical studies performed in collaboration with the Prague team.
Members of the Prague group have been systematically trained in thermoluminescence experiments at low temperatures (10-300 K) and high temperatures (300 – 700 K) at several set-ups and experimental arrangements. Larger sets of samples were used for this purpose, mostly prepared in their home laboratory. During a whole month, from the end of June until the end of July, Vítězslav Jary from FZU received training and performed experiments at low temperature and high temperature thermoluminescence, set of sample based on Eu-YAG powders and single crystals prepared in his home laboratory as well as training on advanced chemical analysis for accidental impurities determination. Furthermore, Maksym Buryi spent 100 days in Milano, from the end of September until the end of December and received extensive training and performed experiments at low temperature and high temperature thermoluminescence, absorption spectroscopy and Raman spectroscopy. Two groups of materials were studied: single crystals of molybdates and Eu-doped YAG single crystals co-doped with tetravalent ions. He was also trained on advanced chemical analysis for accidental impurities determination.
- Education in advanced chemical analysis for accidental impurities determination and influence of related trapping states in scintillation mechanism
- Training in techniques for accidental impurity determination in dielectric materials
- Knowledge exchange on strategies of defect engineering for scintillator material optimization
Members of the UNIMIB group were trained in time-resolved luminescence spectroscopy under light, X-rays and gamma rays excitation incuding light yield measurements and their evaluation and interpretation. During the 10 days in May that he spent at the FZU facilities in Prague, Jacopo Remondina from UNIMIB performed radio-luminescence experiments on nanostructured glass ceramics with gallium oxide, made comparisons between bulk samples and thin films and investigated of the role of thermal treatments. His colleague Mauro Fasoli during his visit at FZU in June, 2017, received training of electron spin resonance experiments and participated in discussions and evaluation of optical studies performed in collaboration with the Prague team.
Members of the Prague group have been systematically trained in thermoluminescence experiments at low temperatures (10-300 K) and high temperatures (300 – 700 K) at several set-ups and experimental arrangements. Larger sets of samples were used for this purpose, mostly prepared in their home laboratory. During a whole month, from the end of June until the end of July, Vítězslav Jary from FZU received training and performed experiments at low temperature and high temperature thermoluminescence, set of sample based on Eu-YAG powders and single crystals prepared in his home laboratory as well as training on advanced chemical analysis for accidental impurities determination. Furthermore, Maksym Buryi spent 100 days in Milano, from the end of September until the end of December and received extensive training and performed experiments at low temperature and high temperature thermoluminescence, absorption spectroscopy and Raman spectroscopy. Two groups of materials were studied: single crystals of molybdates and Eu-doped YAG single crystals co-doped with tetravalent ions. He was also trained on advanced chemical analysis for accidental impurities determination.
Secondee M. Buryi from FZU (on the right) in TSL lab at UNIMIB with Anna Vedda and Mauro Fasoli
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Newly installed halide micropulling down technology in chemical laboratory of Dept. of Optical Materials in FZU.
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Due to the continuous collaboration between these two partners, the following joint research papers have been published in international peer-reviewed journals:
- M. Buryi, V. Laguta, M. Fasoli, F. Moretti, M. Trubitsyn, M. Volnianskii, A. Vedda, M. Nikl, Electron self-trapped at molybdenum complex in lead molybdate: an EPR and TSL comparative study. J. Lumin. 192, 767–774 (2017)
- Z. Hu, M. Cao, H. Chen, Y. Shi, H. Kou, T. Xie, L. Wu, Y. Pan, X. Feng, A. Vedda, A. Beitlerova, M. Nikl, J. Li, The role of air annealing on the optical and scintillation properties of Mg co-doped Pr:LuAG transparent ceramics. Optical Materials 72, 201-207 (2017)
