Tuning the photoluminescence of graphene quantum dots by co-doping of nitrogen and sulfur

被引：0
|
作者：
Yi Luo
Ming Li
Lang Sun
Yongjie Xu
Guanghui Hu
Tao Tang
Jianfeng Wen
Xinyu Li
机构：
[1] Guilin University of Technology,College of Science
来源：
Journal of Nanoparticle Research | 2017年 / 19卷
关键词：
Graphene quantum dots; Nitrogen and sulfur co-doped; Photoluminescence; Optical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Nitrogen and sulfur co-doped graphene quantum dots (NS-GQDs) were successfully synthesized using a facile, inexpensive, and environmentally friendly hydrothermal reaction of aqueous ammonia, S powder, and graphene quantum dots. The NS-GQDs with oxygen-rich functional groups have a high quantum yield of 41% and a diameter of 1–5 nm. The photoluminescence (PL) properties of the nitrogen-doped graphene quantum dots (N-GQDs) and NS-GQD were investigated. The results showed that the PL emission of the NS-GQD exhibits a clear blue shift of 54 nm compared to that of the N-GQDs.
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