Luminescence and scintillation of Eu2+-doped high silica glass

被引：23

作者：

Chewpraditkul, W. ^{[1
]}

Chen, D. ^{[2
]}

Yu, B. ^{[3
]}

Zhang, Q. ^{[2
]}

Shen, Y. ^{[2
]}

Nikl, M. ^{[4
]}

Kucerkova, R. ^{[4
]}

Beitlerova, A. ^{[4
]}

Wanarak, C. ^{[1
]}

Phunpueok, A. ^{[1
]}

机构：

[1] King Mongkuts Univ Technol Thonburi, Dept Phys, Bangkok 10140, Thailand

[2] CAS, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[3] Shanghai Univ, Dept Phys, Shanghai 201800, Peoples R China

[4] AS CR, Inst Phys, Prague 16253, Czech Republic

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2011年 / 5卷 / 01期

基金：

中国国家自然科学基金;

关键词：

glasses; Eu2+; luminescence; scintillation; time-resolved luminescence; porous materials; RARE-EARTH; ALUMINOBOROSILICATE GLASSES; EU2+; REDUCTION; RADIATION; EU3+;

D O I：

10.1002/pssr.201004477

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High silica glass doped with Eu2+ ions was prepared as a scintillating material by impregnation of Eu ions into a porous silica glass followed by reduction sintering in CO atmosphere. A dominant emission band of the Eu2+ 5d-4f transition peaking around 430 nm was observed in the luminescence spectrum with the excitation peak around 280 nm and no emission from Eu3+ was present. Photoluminescence decay kinetics was governed by decay times of a few microseconds. The Eu2+-doped high silica glass exhibited comparable energy resolution and slightly higher photoelectron yield with respect to the Bi4Ge3O12 crystal in the pulse height spectra for X-ray photon energies within 22-60 keV. Furthermore, a factor of 1.2 higher radioluminescence intensity was observed as well. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：40 / 42

页数：3

共 18 条

[1]

[Anonymous], [No title captured]

[2] Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions [J].