硅酸盐学报

纳米晶复合Er3+掺杂Ge–In–S–CsI玻璃的发光性能

单位：1. 宁波大学红外材料及器件实验室浙江宁波 315211 2. 宁波大学材料科学与化学工程学院浙江宁波 315211 3. 宁波大学信息科学与工程学院浙江宁波 315211

关键词：硫系玻璃热处理纳米晶发光性能

分类号：TQ171

出版年,卷(期):页码：2013,41(7):1004-1008

DOI：

摘要：

纳米晶复合的玻璃材料在稀土离子发光方面有着重要的研究意义。用真空熔融淬冷法制备了Er3+掺杂的70GeS2–20In2S3–10CsI玻璃样品，研究了不同温度和时间热处理玻璃基质内部析出的纳米晶对Er3+发光性能的影响。结果表明：随着热处理温度和时间的增加，玻璃样品的短波截止波长发生了明显的红移现象。在380 ℃经过18 h热处理后的玻璃样品析出均匀的纳米晶颗粒，尺寸约为10～20 nm。玻璃基质中先后析出In2S3和GeS2晶体。玻璃样品在380 ℃，经过12 h热处理后，Er3+在1540 nm处的发光增强了3倍，有望应用于C波段通讯用光纤放大器。

The Er2S3 and Ag2S co-doped 70GeS2-20In2S3-10CsI glasses were synthesized by a vacuumed melt-quenching technique. The influence of precipitated nanocrystal on the luminescence properties of RE (rare earth) ions was investigated. The short-wavelength absorption edge appears red-shift when the temperature and duration increase. For the samples treated at 380 ℃ for 12 h, the nanocrystals in the size range from 10 to 20 nm disperse homogeneously in the glass. The In2S3 and GeS2 nanocrystals precipitate successively. The intensity of 1 540 nm luminescence of Er3+ ions is three times greater than that of the glass matrix. The Er3+ ions doped chalcogenide glasses with the nanocrystals have potential applications in the C band optical fiber amplifier.

基金项目：

国家自然科学基金(61177087，61205181)项目；浙江省自然科学基金(LQ12E02003)项目；宁波市自然科学基金(2012A610122)项目；宁波大学王宽诚幸福基金资助课题。

作者简介：

第一作者：戚嘉妮(1989—)，女，硕士研究生。通信作者：许银生(1984—)，男，博士，讲师。

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