Photoluminescence Inhomogeneity of LGSO : Ce Scintillator Crystal
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Photoluminescence Inhomogeneity of LGSO : Ce Scintillator Crystal
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| Creator |
Shevchenko, D.
Kononets, V.V. Dobrovolskas, D. Neicheva, S. Starzhinskiy, N.G. Sidletskiy, O.Ts. Lebbou, K. Tamulaitis, G. |
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| Subject |
Confocal microscopy
Luminescence LGSO Scintillator |
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| Description |
Spatial distribution of photoluminescence (PL) parameters in Lu2SiO5 : Ce (LSO : Ce) and Lu2xGd2 – 2xSiO5 : Ce (LGSO : Ce) are investigated using confocal microscopy. The PL spectra of both crys-tals are dominated by a single band peaked at 510 nm. A low intensity sub-band peaked at 600 nm is observed in LGSO:Ce. Spatial inhomogeneities down to submicron size are observed in spectral center of mass mapping images of LGSO : Ce while the spatial distributions of spectrally-integrated PL intensity and PL peak position showed no large variations. The inhomogeneities in LGSO : Ce are caused by the spectral variation of the long-wavelength sub-band and are attributed to Ce3+ located in CeO6 polyhedra. The results are explained by Lu / Gd ratio fluctuations in mixed LGSO : Ce crystals.
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| Publisher |
Sumy State University
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| Date |
2014-05-28T08:12:33Z
2014-05-28T08:12:33Z 2013 |
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| Type |
Article
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| Identifier |
Photoluminescence Inhomogeneity of LGSO : Ce Scintillator Crystal [Текст] / D. Shevchenko, V.V. Kononets, D. Dobrovolskas et al.
// Nanomaterials: Applications & Properties (NAP-2013) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2013. - V.2, No1. - 01PCSI07
http://essuir.sumdu.edu.ua/handle/123456789/35261 |
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| Language |
en
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