Synthesis and luminescence properties of blue-emitting phosphor Ba3LaK(PO4)3F:Eu2+ for n-UV white-light-emitting diodes
作者单位：School of Materials Sciences and TechnologyChina University of Geosciences
会议名称：《第二届海峡两岸功能材料科技与产业峰会（2015）》
会议日期：2015年
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0803[工学-光学工程]
基 金：supported by the National Natural Science Foundations of China(Grantnos.41172053,51202226 and 51172216) the Fundamental Research Funds for the Central Universities(Grant no.2652013043 and 2-9-2014-042) Science and Technology Innovation Fund of the China University of Geosciences(Beijing)
摘 要：A series of blue-emitting phosphors BaLaK(PO)F:x Eu(BLKPF:x Eu)were synthesized based on the conventional high-temperature solid-state *** photoluminescence(PL)and diffuse reflection spectra had been investigated *** phosphor exhibited strong broad absorption band in the near ultraviolet(n-UV)range from 200 to 450 nm,and generated bright blue emission centered at 460 nm upon 388 nm excitation *** critical Eu quenching concentration(QC)mechanism was ascribed to