发光学报2018，Vol.39Issue(4)：457-465,9.DOI:10.3788/fgxb20183904.0457
一种LED用红色荧光粉BaZn2(BO3)2:Eu3+的合成与发光性能研究
Synthesis and Luminescence Properties of Red Phosphor BaZn2(BO3)2:Eu3+for Light-emitting Diode
摘要
Abstract
A two-peak adjustable semiconductor luminescent material BaZn2(BO3)2:xEu3+ phosphor was prepared by high temperature solid state method. The phosphor has a strong absorption in the ultraviolet band in the range of 300 to 400 nm. With the excitation of 375 nm,this phosphor exhibits two broad emission bands,peaked at 550 and 615 nm. And under the excitation of 393 nm,this phosphor exhibits a strong broad emission band,peaked at 615 nm due to the 5D0→7F2 electric dipole transition of Eu3+,which indicates that Eu3+ occupies an anti-inversion symme-try,and partly replaces the divalent Ba2+in the BaZn2(BO3)2 lattice. When the mole fraction of Eu3+ reaches 10%,the concentration quenching occurs. The color hue of BaZn2(BO3)2:xEu3+ phosphors under different doped concentrations of Eu3+ ions can be tuned from yellow to red.关键词
荧光粉/BaZn2(BO3)2:Eu3+/白光LEDKey words
phosphors/BaZn2(BO3)2:Eu3+/white LEDs分类
数理科学引用本文复制引用
吴程潇,邓德刚,阮枫萍,余华,徐时清..一种LED用红色荧光粉BaZn2(BO3)2:Eu3+的合成与发光性能研究[J].发光学报,2018,39(4):457-465,9.基金项目
浙江省自然科学基金(LR14A040002,LQ13E020003,Y16F050012) （LR14A040002,LQ13E020003,Y16F050012）
国家自然科学基金(61405185,51272243,61370049,51402077,61575182) （61405185,51272243,61370049,51402077,61575182）
江苏省自然科学基金青年基金(BK20160905)资助项目Supported by Zhejiang Provincial Natural Science Foundation of China(LR14A040002,LQ13E020003,Y16F050012) （BK20160905）
National Natural Science Foundation of China(61405185,51272243,61370049,51402077,61575182) （61405185,51272243,61370049,51402077,61575182）
Natural Science Youth Foundation of Jiangsu Province(BK20160905) （BK20160905）
