文献类型：期刊文章

作　　者：贺香红[1] 周健[1] 李卫华[1] 周全法[1]

机构地区：[1]江苏技术师范学院化学化工学院,江苏省贵金属深加工技术及应用重点建设实验室,常州213001

出　　处：《无机化学学报》

基　　金：江苏技术师范学院自然科学研究基金(No.KYY05039);上海市科技发展基金(No.0352nm082)资助项目。

年　　份：2006

卷　　号：22

期　　号：9

起止页码：1706-1710

语　　种：中文

收录情况：BDHX、BDHX2004、CAS、CSCD、CSCD2011_2012、IC、JST、RCCSE、RSC、SCI(收录号：WOS:000240714100028)、SCI-EXPANDED(收录号：WOS:000240714100028)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：A series of novel luminescent materials, SrZnO2:M (M=Eu3+, or Eu3+ + Li+) have been synthesized by high-temperature solid-state reaction. The structure and luminescence properties of SrZnO2:Eu3+ phosphor were studied through XRD, photoluminescence and Raman spectroscopy. The excitation spectra show a broad intense band and a number of small peaks corresponding to the inner 4f-shell excitations of Eu3+ (the strongest one is at 395 nm for 7F0-5L6). After SrZnO2:Eu3+ phosphor was co-doped with Li+ ions, its charge transfer band extended to longer wavelengths. This resulted in increase of luminescent quantum efficiency of the sample. SrZnO2:Eu3+,Li+ phosphor can be efficiently excited by longer UV. From the fluorescence spectrum of SrZnO2:Eu3+ phosphor, apart from transition emissions of 5D0 → 7FJ (J=0~4), the transition emissions from 5D1 → 7FJ (J=0~2) have been observed. For the SrZnO2:Eu3+ phosphor, under excitation of UV, the dominant emission is at about 612 nm, due to the 5D0 → 7F2 hypersensitive transition. The incorporation of Li+ ions greatly enhanced the luminescence intensity and made emission peak from 5D0 → 7F2 transition red-shifted.

关 键 词：SrZnO2:Eu^3+荧光粉  铕离子 光致发光性能 红光  红移

分 类 号：O614.33] TQ422[化学类]