有色金属科学与工程2016，Vol.7Issue(2)：43-47,5.DOI:10.13264/j.cnki.ysjskx.2016.02.008
溶胶-凝胶法制备Ca3Al2O6：Eu3+红色荧光粉及其发光性能
Preparation of Ca3Al2O6:Eu3+red phosphor by sol-gel method and its photoluminescence properties
摘要
Abstract
The Ca3Al2O6:Eu3+red phosphor was synthesized by sol-gel method. The structure, shape and luminous property of the sample were characterized by the XRD, SEM, and fluorescence spectrum to investigate the in-fluence of sintering temperature, Eu3+ion doping concentration, and charge compensations doping on the sam-ple. The results show that the sample′s crystal phase is the same with Ca3Al2O6 crystal structure and their crys-tal structure does not change with the invasion of Eu3+ion. The synthesized phosphor, excited by 394 nm NUV-light, emits 615 nm bright red light. The emission intensity rises first with the increasing of the sintering tem-perature and then decreases and reaches at peak when sintering temperature is 1 200 ℃. At the same time, the emission intensity of the sample increases first and then decreases with the increasing of the concentration of Eu3+ion and the optimal doping concentration of Eu3+ion is 4 mol%. Besides, the emission intensity rises with doping charge compensations which doped with K+ion has the best luminescent properties. This red phosphor of aluminates is stable, which has potential application prospect in the stimulating of White-LED′s NUV-chip.关键词
溶胶-凝胶法/Ca3Al2O6:Eu3+/红色荧光粉/LEDKey words
sol-gel method/Ca3Al2O6:Eu3+/red phosphor/LED分类
矿业与冶金引用本文复制引用
肖宗梁,黄昕,游维雄,赖凤琴,叶信宇,段龙飞..溶胶-凝胶法制备Ca3Al2O6：Eu3+红色荧光粉及其发光性能[J].有色金属科学与工程,2016,7(2):43-47,5.基金项目
国家自然科学基金资助项目（51304086）；江西理工大学重点学科立项科研项目 （）
