The role of defects and dimensionality in influencing the charge, capacitance, and energy storage of graphene and 2D materials

Nanotechnology Reviews

article

Prabhakar R. Bandaru¹  Hidenori Yamada³  Rajaram Narayanan⁴  Mark Hoefer² 

[1] Engineering 2, Department of Mechanical Engineering;Program in Materials Science, Department of Mechanical Engineering, University of California;Department of Electrical Engineering, University of California;Department of Nanoengineering, University of California

关键词: 2D materials;    capacitance;    defects;    energy storage;    graphene;   

DOI  :  10.1515/ntrev-2016-0099

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

The inevitable presence of defects in graphene and other two-dimensional (2D) materials influences the charge density and distribution along with the concomitant measured capacitance and the related energy density. We review, in this paper, the various manifestations of the capacitance including both the classical electrostatic (e.g. associated with double layer, space charge, chemical capacitances) and the quantum forms, as well as a few methodologies to tune the respective capacitances. The role of a proper determination of the surface area of 2D materials, considering the presence of defects, in determining the capacitance and the magnitude of the energy storage is also considered.

【 授权许可】

CC BY