硅酸盐学报2012，Vol.40Issue(9)：1351-1355,5.
溶胶–凝胶法制备 Y2O2S：Eu3＋,Mg2＋,Ti4＋红色长余辉发光粉及其发光特性
Synthesis and Luminescence Properties of Red Long Afterglow Phosphor Y2O2S：Eu3＋,Mg2＋,Ti4＋by Sol-Gel Process
摘要
Abstract
The red long afterglow phosphor Y2O2S：Eu3＋,Mg2＋,Ti4＋ material was synthesized by a sol-gel method using metal nitrate and tetrabulyl titanate as raw materials, aeetyl acetone as a eomplexing agent. The performance of samples synthesised at different temperatures was investigated by X-ray diffraction, scanning electron microscopy and fluorophotometer technique, respectively. The precursor of Y2O2S：Eu3＋,Mg2＋,Ti4＋ with a cubic crystal structure was obtained via the calcinations of the dry gel at 600 ℃ for 2 h. When the precursor was sulfurized at 1 050-1 150 ℃, the product was a mixture of Y2O3 and Y2O2S. The pure phase of Y2O2S：Eu3＋,Mg2＋,Ti4＋ was obtained at 1 200 ℃ and the average particle size was approximately 150 nm, the phase of Y2O3 appeared again at 1 300 ℃. The main peaks of excitation spectra of the samples synthesized by sol-gel method showed blue-shift, compared to the sample obtained by solid-state reaction method, and the main peaks of emission spectrum at 616 and 626 nm were ascribed to 5D0 to 7F2 transition of Eu3＋; The afterglow time of the sample was 40 min at the sulfurization temperature of 1200 ℃.关键词
红色长余辉/硫氧化钇/溶胶–凝胶法/发光特性Key words
red long-lasting phosphor/yttrium oxysulfide/sol-gel method/optical properties分类
物理学引用本文复制引用
崔彩娥,刘舵,黄平,雷星,杨帆..溶胶–凝胶法制备 Y2O2S：Eu3＋,Mg2＋,Ti4＋红色长余辉发光粉及其发光特性[J].硅酸盐学报,2012,40(9):1351-1355,5.基金项目
国家自然科学基金项目 （）
山西省攻关项目 （）
山西省优秀青年学术带头人项目资助 （）
