Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5459229 | Journal of Alloys and Compounds | 2017 | 19 Pages |
Abstract
PbSe quantum dots (QDs) were used to dope borosilicate glass with a composition of SiO2-B2O3-Al2O3-ZnO-AlF3-Na2O-PbO-Se, which was prepared using the conventional melt-quenching technique followed by heat treatment. We observed a broad near infrared (NIR) emission (960-1353 nm) band with a full-width-at-half-maximum (FWHM) value of 168-294 nm and a notable Stokes shift (139-167 nm), which depended on the temperature and duration of the heat treatment. At room temperature, the photoluminescence (PL) lifetime was approximately 1.24-1.92 μs, and it showed a clear dependence on the size and concentration of the QDs. The large FWHM and strong NIR emission of the PbSe QD-doped borosilicate glass may facilitate its application in NIR optical amplifiers and lasers.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhousu Xu, Jinhua Yan, Cheng Xu, Cheng Cheng, Chun Jiang, Xiaofeng Liu, Jianrong Qiu,