Composition-induced valence variation of europium and the photoluminescence properties for Eu^(2+) doped borophosphate luminous glass in air  

作　　者：仇坤 徐所成 田华 郑玺 吕天帅 陆启飞 王达健 

机构地区：[1]School of Materials Science & Engineering,Tianjin University of Technology [2]Key Lab. on Display Materials & Photoelectric Devices Ministry of Education of China,Tianjin University of Techndogy [3]Tianjin Key Lab. for Photoelectronic Materials & Devices, Tianjin University of Technology

出　　处：《Optoelectronics Letters》2011年第5期350-353,共4页光电子快报（英文版）

基　　金：the National Natural Science Foundation of China(No.50872091);the Key Discipline of Materials Physics and Chemistry of Tianjin,(No.10SYSYJC28100)

摘　　要：A simultaneous blue-light and red-light emitting glass of SrO-B2O3-P2O5 doped with Eu2O3 is prepared in air, and then heat-treated without any reductive reagent. A transition combination is found to consist of a band emission peaked around 430 nm and a series of line emission from 593 nm to 611 nm, corresponding to the typical 4f65d→ 4f7 transition of Eu2+ and 5D0 → 7FJ (J = 0, 1, 2, 3, 4) transitions of Eu3+, respectively. Some unidentified crystals such as Sr (PO3)2 and SrB2O4 as hosts for Eu2+ with more stronger crystal field lead to this enhancement of photoluminescence (PL) intensity superior to the asprepared parent glass.

关 键 词：EUROPIUM Glass transition PHOTOLUMINESCENCE 

分 类 号：O482.31[理学—固体物理]