Luminescence of Ce3+ at two different sites in α-Sr2P2O7 under vacuum ultraviolet-UV and x-ray excitation

被引：60

作者：

Hou, Dejian ^{[1
]}

Han, Bing ^{[1
]}

Chen, Wanping ^{[1
]}

Liang, Hongbin ^{[1
]}

Su, Qiang ^{[1
]}

Dorenbos, Pieter ^{[2
]}

Huang, Yan ^{[3
]}

Gao, Zhenhua ^{[3
]}

Tao, Ye ^{[3
]}

机构：

[1] Sun Yat Sen Univ, MOE Lab Bioinorgan & Synthet Chem, State Key Lab Optoelect Mat & Technol, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] Delft Univ Technol, Fac Sci Appl, NL-2629 JB Delft, Netherlands

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 08期

基金：

中国国家自然科学基金;

关键词：

CRYSTAL-STRUCTURE; PHOSPHOR; GD3+;

D O I：

10.1063/1.3500333

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A series of Ce3+ doped alpha-Sr2-2xCexNaxP2O7 phosphor compounds has been prepared using a high-temperature solid-state reaction technique. The luminescence properties under vacuum ultraviolet-UV and x-ray excitation were studied. Luminescence spectra reveal three UV-emitting peaks at about 310, 330, and 350 nm from which we conclude that Ce3+ occupies two distinct sites in alpha-Sr2P2O7. The influences of the doping concentration, the temperature, and the excitation wavelength on the luminescence of Ce3+ at the Ce(I) and Ce(II) sites together with the decay characteristics are discussed. The light yield under x-ray excitation is found to be around 10 000 photons/MeV. (C) 2010 American Institute of Physics. doi:10.1063/1.3500333]

引用

页数：6

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