Charge distribution in graphene from quantum calculation*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11764027 and 11364025) and the Chinese Scholarship Council (Grant No. 201408625041).

Liang Ze-Fen1, 2, Ma Sheng-Ling1, Xue Hong-Tao1, Ding Fan1, Liu Jingbo Louise3, Tang Fu-Ling1, 3, †
       

(color online) Carbon atoms with (a) chain, (b) round, (c) rectangle, (d) hexagonal shape, and (e) asymmetrical geometry graphene sheet. The number indicates the charges on the atoms and color refers to electrostatic potential: blue represents positive charge and red refers to negative charge.