Journal
OPTICAL MATERIALS
Volume 34, Issue 11, Pages 1762-1766Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2012.04.012
Keywords
Ce3+; Luminescence; Porous materials; Scintillation; Photoluminescence decay
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Funding
- NRCT-NSFC project (NSFC) [60878043, 50911140475]
- TICA-MOST project [19-502J]
- NRU project of Thailand's Office of the Higher Education Commission
- Czech MSMT KONTAKT II [LH12185]
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Ce3+-doped high silica glass was prepared by impregnation of Ce ions into a porous silica glass followed by high temperature sintering in a CO reducing atmosphere. The characteristic emission of Ce3+ 5d -> 4f transition peaking around 375 nm is observed in its luminescence spectra under UV and X-ray excitation. Its photoluminescence decay is governed by several tens of nanoseconds decay time. Its integral scintillation efficiency is comparable to that of a Bi4Ge3O12 (BGO) crystal under X-ray excitation. Scintillation light yield under gamma and alpha excitation was measured and compared with that of BGO. (C) 2012 Elsevier B.V. All rights reserved.
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