发光学报2023，Vol.44Issue(12)：2168-2179,12.DOI:10.37188/CJL.20230208
白光LEDs用Ca9.15La0.9(PO4)7:Eu2+,Mn2+材料的发光特性及能量传递
Luminescence Properties and Energy Transfer of Ca9.15La0.9(PO4)7:Eu2+,Mn2+ for White LEDs
摘要
Abstract
A series of Ca9.15La0.9(PO4)7:0.05Eu2+,yMn2+ and Ca9.3La0.8(PO4)7:0.05Eu2+,yMn2+ were synthesized by the high temperature solid-state method.The energy transfer from Eu2+ to Mn2+ was confirmed by the emission spectra and fluorescence decay curves.With increasing the concentration of Mn2+,the phosphor can produce the tun-ing emission from blue or green to white light.In addition,the thermal stability of the samples revealed that the two emission peaks of Eu2+ with different colors exhibited different temperature quenching behaviors.The color coordi-nates of Ca9.15La0.9(PO4)7:0.05Eu2+,0.35Mn2+ are close to standard white light and the color temperature is similar to sunlight,which proves its potential application in white light emitting diodes(LEDs).关键词
发光/荧光粉/能量传递/Ca9.15La0.9(PO4)7:0.05Eu2+,yMn2+Key words
phosphor/luminescence/energy transfer/Ca9.15La0.9(PO4)7:0.05Eu2+,yMn2+分类
化学化工引用本文复制引用
王涛,张晓帅,李晓彤,王志军,李盼来..白光LEDs用Ca9.15La0.9(PO4)7:Eu2+,Mn2+材料的发光特性及能量传递[J].发光学报,2023,44(12):2168-2179,12.基金项目
国家自然科学基金(61805285)Supported by National Natural Science Foundation of China(61805285) （61805285）
