Large-area, high-quality monolayer graphene from polystyrene at atmospheric pressure

Junqi Xu; Can Fu; Haibin Sun; Lanxiang Meng; Yanjie Xia; Chongwu Zhang; Xiaolei Yi; Wenchao Yang; Pengfei Guo; Chunlei Wang; Jiangfeng Liu

doi:10.1088/1361-6528/aa6235

Large-area, high-quality monolayer graphene from polystyrene at atmospheric pressure

Nanotechnology. 2017 Apr 18;28(15):155605. doi: 10.1088/1361-6528/aa6235.

Authors

Junqi Xu¹, Can Fu, Haibin Sun, Lanxiang Meng, Yanjie Xia, Chongwu Zhang, Xiaolei Yi, Wenchao Yang, Pengfei Guo, Chunlei Wang, Jiangfeng Liu

Affiliation

¹ Key Laboratory of Advanced Micro/Nano Functional Materials, Department of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China. Energy-Saving Building Materials Innovative Collaboration Center of Henan Province, Xinyang Normal University, Xinyang 464000, People's Republic of China.

PMID: 28303799
DOI: 10.1088/1361-6528/aa6235

Abstract

Graphene films have been attracting great interest owing to their unique physical properties. In this paper, we develop an efficient method to prepare large-area monolayer graphene (97.5% coverage) by atmospheric pressure chemical vapor deposition on Cu foils using polystyrene in a short time (3 min). Raman spectroscopy, transmission electron microscopy and scanning electron microscopy are employed to confirm the thickness and uniformity of the graphene films. Graphene films on glass substrates show high optical transmittance and electrical conductivity. Magnetic transport studies demonstrate that the as-grown monolayer graphene exhibits a high carrier mobility of 3395 cm² V^-1 s^-1 at 25 K. On the basis of the analysis, it is concluded that our method is a simple, safe and versatile approach for the synthesis of monolayer graphene.