Laser precipitation of PbS quantum dots in glass rods to achieve broadband near-infrared emission

被引：2
作者：
Zhao, Zhiyong [1 ]
Park, Wonji [1 ,2 ]
Lee, Hojeong [1 ]
Liu, Chao [3 ]
Heo, Jong [1 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 37673, South Korea
[2] Foundry Samsung Elect, Yongin, South Korea
[3] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Hongshan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE | 2020年 / 11卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
glass products; nano-particles < structure; photo luminesence < optical properties; rods < products; MU-M EMISSION; OXIDE GLASSES; NANOCRYSTALS; FIBER; LUMINESCENCE;
D O I：
10.1111/ijag.14508
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Continuous-wave laser (lambda = 532 nm) was irradiated on Ag+-exchanged glass surfaces to precipitate PbS quantum dots (QDs) of various diameters. TEM images combined with element mapping results confirmed the formation and size distribution of PbS QDs. Photoluminescence spectra red-shifted from 1336 nm to 1635 nm with increases in power density and duration of laser irradiation. Three representative irradiation conditions are proposed to realize broadband photoluminescence from one glass rod to cover the 1.3-1.7 mu m communication window.
引用
收藏
页码：272 / 276
页数：5
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