Long afterglow property and mechanism on Gd2O2S:Ti

被引：0

作者：

Zhang Junwen ^{[1
]}

Liu Yingliang ^{[1
]}

Zhang Jingxian ^{[1
]}

Yuan Dingsheng ^{[1
]}

Rong Jianhua ^{[1
]}

Huang Langhuan ^{[1
]}

机构：

[1] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2006年 / 35卷 / 05期

关键词：

Gd2O2S : Ti; afterglow; thermo-luminescence spectra;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new phosphor Gd2O2S:Ti was synthesized by a traditional solid-state reaction method. The luminescent properties and thermoluminescence curves were investigated. An orange afterglow was observed in the Gd2O2S:Ti excited by UV light with a persistent time of about 2 h according to the light perception of dark-adapted human eyes. The mechanism of the afterglow has been discussed and analyzed by the thermo-luminescence spectra. We conclude that the transition E-2 -> T-2(2) of Ti3+ metastable state is the reason of luminescence and afterglow, and give a new afterglow mechanism of this kind of phosphor.

引用

页码：766 / 769

页数：4

共 19 条

[1] Thermoluminescence of Tb doped Gd2O2S phosphor
Chatterjee, S
Shanker, V
Chander, H
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2003, 80 (03) : 719 - 724
[2] He DW, 2003, J RARE EARTH, V21, P146
[3] JOSEPH L, 1991, Patent No. 5043096
[4] Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S:Ti,Mg
Kang, CC
Liu, RS
Chang, JC
Lee, BJ
[J]. CHEMISTRY OF MATERIALS, 2003, 15 (21) : 3966 - 3968
[5] Crystal characterization and optical spectroscopy of Ti3+-doped CaGdAlO4 crystals
Kodama, N
Yamaga, M
[J]. PHYSICAL REVIEW B, 1998, 57 (02): : 811 - 817
[6] Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals
Kodama, N
Takahashi, T
Yamaga, M
Tanii, Y
Qiu, J
Hirao, K
[J]. APPLIED PHYSICS LETTERS, 1999, 75 (12) : 1715 - 1717
[7] Pink light emitting long-lasting phosphorescence in Sm3+-doped CdSiO3
Lei, BF
Liu, YL
Liu, H
Ye, ZR
Shi, CS
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (4-5) : 1333 - 1337
[8] Lei BF, 2003, CHEM J CHINESE U, V24, P782
[9] Cloning and characterization of c-phycocyanin operon from the cyanobacterium Arthrospira platensis FACHB341
Liu, JJ
Zhang, XC
Sui, ZH
Zhang, XH
Mao, YX
[J]. JOURNAL OF APPLIED PHYCOLOGY, 2005, 17 (02) : 181 - 185
[10] Murazaki Y., 1999, RARE EARTHS JPN, V35, P41

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