|Synthesis and optical properties of nitrogen and sulfur co-doped graphene quantum dots|
|Zhang, BX; Gao, H; Li, XL; firstname.lastname@example.org
|Source Publication||NEW JOURNAL OF CHEMISTRY
|Abstract||Strong blue luminescence and water-soluble nitrogen (N) and sulfur (S) co-doped graphene quantum dots (NS-GQDs) were fabricated via a one-step hydrothermal method using oxidized graphene. Ammonia and powdered S were selected as the source of N and S. respectively. The results indicated that both N and S atoms were successfully incorporated into the sp(2)-hybridized carbon framework of graphene. Under the excitation of 365 nm, the maximum emission intensity could be obtained with a 1:1.2 atomic ratio of N/S. The as-prepared NS-GQDs exhibited brighter luminescence compared with N-doped graphene quantum dots (N-GQDs). S-doping plays an important role in enhancing the emission intensity of NS-GQDs. In addition, the luminescence was exceptionally resistant to high salt concentration. Because of these virtues, there are extensive potential applications for NS-GQDs in bio-imaging, solar cells, and ion detection.|
Zhang, BX,Gao, H,Li, XL,et al. Synthesis and optical properties of nitrogen and sulfur co-doped graphene quantum dots[J]. NEW JOURNAL OF CHEMISTRY,2014,38(9):4615—4621.
Zhang, BX,Gao, H,Li, XL,&email@example.com.(2014).Synthesis and optical properties of nitrogen and sulfur co-doped graphene quantum dots.NEW JOURNAL OF CHEMISTRY,38(9),4615—4621.
Zhang, BX,et al."Synthesis and optical properties of nitrogen and sulfur co-doped graphene quantum dots".NEW JOURNAL OF CHEMISTRY 38.9(2014):4615—4621.
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