Enhanced thermopower of graphene films with oxygen plasma treatment

• Main Authors: Ajayan, Pulickel M., Xiao, Ni, Dong, Xiaochen, Song, Li, Liu, Dayong, Tay, Yee Yan, Wu, Shixin, Li, Lain-Jong, Zhao, Yang, Yu, Ting, Zhang, Hua, Huang, Wei, Hng, Huey Hoon, Yan, Qingyu
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Materials::Nanostructured materials; DRNTU::Engineering::Materials::Plasma treatment
• Online Access: https://hdl.handle.net/10356/93781; http://hdl.handle.net/10220/7452
• Institution: Nanyang Technological University

In this work, we show that the maximum thermopower of few layers graphene (FLG) films could be greatly enhanced up to ∼700 μV/K after oxygen plasma treatment. The electrical conductivities of these plasma treated FLG films remain high, for example, ∼104 S/m, which results in power factors as high as...