硅酸盐学报2012，Vol.40Issue(11)：1636-1640,5.
电荷补偿对 SrCeO3：Sm3＋材料光谱特性的影响
Influence of Charge Compensation on Spectra Characteristics of SrCeO3:Sm3+ Phosphor
摘要
Abstract
The red phosphors of SrCeO3:Sm3+,M+ (M = Li, Na, K) were synthesized by a sol-gel method. The X-ray diffraction patterns and photoluminescence spectra were determined to characterize their phase structural and luminescent properties. The effect of charge compensation on the luminescence properties of sample SrCeO3:Sm3+ was investigated. The results show that there is no ap- parent phase structure transformation of the SrCeO3 matrix after doping appropriate amount of charge compensators. The excitation spectra of the sample consisted of Ce4+→O2- charge transitions and Sm3+ ion excitation peak. Under an ultraviolet excitation with a wavelength of 408 nm, the sample emits a red luminescence due to the transition 4G5/2→6HT/2 of Sm3+, and the maximum emission peak is at 601 rim. The luminescence intensity firstly increased and then decreased with the increase of doping amount of charge compensators. However, the doping amount of charge compensator corresponding to the maximum emission intensity is different with different charge compensators, and the optimum doping amount of charge compensators Li+, Na+ and K+ are 5%, 2% and 0.8%, respectively.关键词
钐掺杂铈酸锶/电荷补偿/光谱特性/发光材料Key words
samarium-doped strontium cerate/charge compensator/spectra characteristics/phosphor分类
物理学引用本文复制引用
魏乐,杨定明,胡文远,张欢..电荷补偿对 SrCeO3：Sm3＋材料光谱特性的影响[J].硅酸盐学报,2012,40(11):1636-1640,5.基金项目
国防基础研究项目 （）
西南科技大学博士基金（08zx0103）资助项目. （）
