文献类型：期刊文章

作　　者：徐进章[1] 张志华[1] 王育华[1]

机构地区：[1]兰州大学物理科学与技术学院功能与环境材料研究所,兰州730000

出　　处：《无机化学学报》

基　　金：国家科技部863计划(No.2003AA324020);国家自然基金(No.50272026);教育部优秀教师资助计划(No.2002年)资助项目

年　　份：2006

卷　　号：22

期　　号：5

起止页码：913-916

语　　种：中文

收录情况：BDHX、BDHX2004、CAS、CSCD、CSCD2011_2012、IC、JST、RCCSE、RSC、SCI(收录号：WOS:000237723700026)、SCI-EXPANDED(收录号：WOS:000237723700026)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：LaMgAl11O19∶Eun+ (n=2,3) was synthesized by solid state reaction using H3BO3 as a flux at 1 400 ℃ for 4 hours. And their luminescent properties was investigated under UV and VUV excitation. Strong pure blue emission due to d-f transition of Eu2+ was observed in LaMgAl11O19∶Eu2+ both in 254 nm and 147 nm excitation. At the same time, red emission due to 5D0 → 7FJ (J=0, 1, 2, 3, 4) transition of Eu3+ also observed in LaMgAl11O19∶Eu3+. The dependence of emission intensity of blue/red emission on Eu2+ / Eu3+-content was evaluated. The result indicated that the blue emission intensity was arrived optimum when Eu2+-content was 0.10 mol·mol-1 under both UV and VUV excitation while red emission intensity reached optimum when Eu3+-content was 0.125 mol·mol-1 under UV excitation. This suggests that LaMgAl11O19∶Eu2+ phosphors could be potential blue phosphor for the application in PDP.

关 键 词：助熔剂 UV/UVU  LaMgAl11O19:Eu^n+(n=2,3)  荧光粉  

分 类 号：O614.31] O614.51[化学类]