发光学报2011，Vol.32Issue(9)：880-884,5.DOI:10.3788/fgxb20113209.0880
Ce∶ LSO多晶薄膜的溶胶-凝胶法制备及其发光性能
Sol-gel Synthesis and Luminescence Properties of Ce∶ LSO Polycrystalline Films
摘要
Abstract
Ce3 +-doped lutetium oxyorthosilicate (Ce: Lu2SiO5) films have been fabricated on silicon (111) substrates by Pechini sol-gel method combined with the spin-coating technique. Thermogravimetry-differential scanning calorimetry (TG-DSC) analysis, X-ray diffraction (XRD) , Scanning Electron Microscopy (SEM) , PL (Photoluminescent) measurements under VUV as well as spectroscopic ellipsometry (SE) were used to characterize the resulting films. The results indicate that the Ce: Lu2SiO5 films begin to crystallize at 900 ℃ and are completely crystallized at 1 100 t. The phosphor films are uniform, dense and crack-free. The VUV spectra show that the excitation is mainly host excited and the emission spectrum is a broad band centered at about 400 nm. The refractive index, the extinction of coefficient are 1. 82 ～ 1.94 and 0. 005 ～ 0. 05 , respectively, the thickness measured by spectroscopic ellipsometry is similar to that obtained by SEM.关键词
溶胶-凝胶法/Ce∶ LSO薄膜/发光/真空紫外光谱/光学常数Key words
sol-gel method/ Ce: LSO film/ luminescence/ VUV spectra/ optical constants分类
数理科学引用本文复制引用
沈思情,许志斌,马清,谢建军,施鹰,袁晖,熊巍..Ce∶ LSO多晶薄膜的溶胶-凝胶法制备及其发光性能[J].发光学报,2011,32(9):880-884,5.基金项目
上海市自然科学基金(10ZR1411400) （10ZR1411400）
上海科委基础研究重点项目(9JC1406500) （9JC1406500）
上海市重点学科(S30107) （S30107）
上海大学2011年度研究生创新基金(A16-0110-11-017)资助项目 （A16-0110-11-017）
