Synthesis and applications of graphene quantum dots: a review

Nanotechnology Reviews

article

Weifeng Chen¹  Guo Lv¹  Weimin Hu¹  Dejiang Li¹  Shaona Chen¹  Zhongxu Dai¹ 

[1] Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and Chemical Engineering, China Three Gorges University

关键词: bottom-up;    graphene quantum dots;    photoluminescence;    quantum confinement effect;    top-down;   

DOI  :  10.1515/ntrev-2017-0199

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

As a new class of fluorescent carbon materials, graphene quantum dots (GQDs) have attracted tremendous attention due to their outstanding properties and potential applications in biological, optoelectronic, and energy-related fields. Herein, top-down and bottom-up strategies for the fabrication of GQDs, mainly containing oxidative cleavage, the hydrothermal or solvothermal method, the ultrasonic-assisted or microwave-assisted process, electrochemical oxidation, controllable synthesis, and carbonization from small molecules or polymers, are discussed. Different methods are presented in order to study their characteristics and their influence on the final properties of the GQDs. The respective advantages and disadvantages of the methods are introduced. With regard to some important or novel methods, the mechanisms are proposed for reference. Moreover, recent exciting progresses on the applications of GQD, such as sensors, bio-imaging, drug carriers, and solar cells are highlighted. Finally, a brief outlook is given, pointing out the issues still to be settled for further development. We believe that new preparation methods and properties of GQDs will be found, and GQDs will play more important roles in novel devices and various applications.

【 授权许可】

CC BY