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Journal of Nanoparticle Research

Erschienen in:

01.11.2017 | Research Paper

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

verfasst von: Yi Luo, Ming Li, Lang Sun, Yongjie Xu, Guanghui Hu, Tao Tang, Jianfeng Wen, Xinyu Li

Erschienen in: Journal of Nanoparticle Research | Ausgabe 11/2017

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Abstract

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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Titel: Tuning the photoluminescence of graphene quantum dots by co-doping of nitrogen and sulfur
verfasst von: Yi Luo
Ming Li
Lang Sun
Yongjie Xu
Guanghui Hu
Tao Tang
Jianfeng Wen
Xinyu Li
Publikationsdatum: 01.11.2017
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 11/2017
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-017-4059-4

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