title: Controllable size-selective method to prepare graphene quantum dots from graphene oxide.
abstract: We demonstrated one-step method to fabricate two different sizes of graphene quantum dots (GQDs) through chemical cutting from graphene oxide (GO), which had many advantages in terms of simple process, low cost, and large scale in manufacturing with higher production yield comparing to the reported methods. Several analytical methods were employed to characterize the composition and morphology of the resultants. Bright blue luminescent GQDs were obtained with a produced yield as high as 34.8%. Moreover, how the different sizes affect fluorescence wavelength mechanism was investigated in details.
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China.
authors: Tianju
authors: T
authors: Fan
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China.
authors: Wenjin
authors: W
authors: Zeng
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China.
authors: Wei
authors: W
authors: Tang
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China.
authors: Chunqiu
authors: C
authors: Yuan
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China.
authors: Songzhao
authors: S
authors: Tong
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China.
authors: Kaiyu
authors: K
authors: Cai
authors: State Key Laboratory of Organic Electronics and Information Displays and Fountain Global Photoelectric Technology Co. Ltd, 2 Xinyue Road, Yancheng, Jiangsu 224000 China.
authors: Yidong
authors: Y
authors: Liu
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China ; State Key Laboratory of Organic Electronics and Information Displays and Fountain Global Photoelectric Technology Co. Ltd, 2 Xinyue Road, Yancheng, Jiangsu 224000 China.
authors: Wei
authors: W
authors: Huang
authors: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China ; Department of Physics and Chemistry & Biochemistry, The Ohio State University, Columbus, OH 43210 USA.
authors: Yong
authors: Y
authors: Min
authors: Department of Physics and Chemistry & Biochemistry, The Ohio State University, Columbus, OH 43210 USA.
authors: Arthur J
authors: AJ
authors: Epstein
keywords: Chemical cutting; Fluorescence mechanism; Graphene oxide; Graphene quantum dots