The relationship between photoluminescence quenching concentrations and excitation wavelengths in (Gd,Y)BO3:Tb

被引：33

作者：

Zhang, Jiachi ^{[1
]}

Wang, Yuhua ^{[1
]}

Zhang, Zhiya ^{[1
]}

Wang, Zhilong ^{[1
]}

Liu, Bin ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Mat Sci, Lanzhou 730000, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 02期

基金：

高等学校博士学科点专项科研基金;

关键词：

quenching concentration; excitation bands; (Gd; Y)BO3; Tb;

D O I：

10.1016/j.matlet.2007.04.101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The quenching concentrations of D-5(4)-F-7(6) emission of Tb3+ in (Gd,Y)BO3:Tb under 130-290 nm excitation were systematically investigated. The results revealed that its quenching concentrations of luminescence excited at particular wavelengths are dependent on corresponding excitation bands. Resulting in a calculation of coupling interaction, it was found that the quenching concentrations at excitation regions due to electrostatic interaction are often small while those corresponding to exchange interaction are usually larger (>10%). Moreover, the quenching concentrations are also influenced significantly by luminescence sensitization of Gd3+ and Y3+ ions. Based on these results, a possible photoluminescence quenching mechanism was proposed. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：202 / 205

页数：4

共 26 条

[1]

ABRAMOV VN, 1978, FIZ TVERD TELA+, V20, P689

[2]

Blasse G., 1994, LUMINESCENT MAT, DOI [10.1007/978-3-642-79017-1_1, DOI 10.1007/978-3-642-79017-1_1]

[3] FLUORESCENCE QUENCHING AND SPECTRAL DIFFUSION IN LA1-XP5O14-NDX3+ [J].

BROER, MM ;

HUBER, DL ;

YEN, WM ;

ZWICKER, WK .

PHYSICAL REVIEW B, 1984, 29 (05) :2382-2389

[4] A THEORY OF SENSITIZED LUMINESCENCE IN SOLIDS [J].

DEXTER, DL .

JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (05) :836-850

[5] THEORY OF CONCENTRATION QUENCHING IN INORGANIC PHOSPHORS [J].

DEXTER, DL ;

SCHULMAN, JH .

JOURNAL OF CHEMICAL PHYSICS, 1954, 22 (06) :1063-1070

[6] The 4fn⇆4fn-15d transitions of the trivalent lanthanides in halogenides and chalcogenides [J].

Dorenbos, P .

JOURNAL OF LUMINESCENCE, 2000, 91 (1-2) :91-106

[7] CONCENTRATION QUENCHING IN NDXY1-XP5O14 CRYSTALS [J].

FLAHERTY, JM ;

POWELL, RC .

PHYSICAL REVIEW B, 1979, 19 (01) :32-42

[8] ELECTRON TRANSFER SPECTRA OF LANTHANIDE COMPLEXES [J].

JORGENSEN, CK .

MOLECULAR PHYSICS, 1962, 5 (03) :271-277

[9] Synthesis and characterization of red phosphor (Y,Gd)BO3:Eu by the coprecipitation method [J].

Kim, KN ;

Jung, HK ;

Park, HD ;

Kim, D .

JOURNAL OF MATERIALS RESEARCH, 2002, 17 (04) :907-910

[10] EXCITATION MECHANISM OF CATHODOLUMINESCENCE OF OXISULFIDES [J].

KLAASSEN, DBM ;

MULDER, H ;

RONDA, CR .

PHYSICAL REVIEW B, 1989, 39 (01) :42-45

← 1 2 3 →