Anisotropic etching of graphite flakes with water vapor to produce armchair-edged graphene

Da Luo; Feng Yang; Xiao Wang; Hao Sun; Dongliang Gao; Ruoming Li; Juan Yang; Yan Li

doi:10.1002/smll.201400007

Anisotropic etching of graphite flakes with water vapor to produce armchair-edged graphene

Small. 2014 Jul 23;10(14):2809-14, 2742. doi: 10.1002/smll.201400007. Epub 2014 Mar 26.

Authors

Da Luo¹, Feng Yang, Xiao Wang, Hao Sun, Dongliang Gao, Ruoming Li, Juan Yang, Yan Li

Affiliation

¹ Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.

PMID: 24678038
DOI: 10.1002/smll.201400007

Abstract

A one-step anisotropic etching method is developed to specifically obtain armchair-edged graphene directly from graphite flakes on various substrates. The armchair edge structure of the produced graphene is verified by the atomic resolution images obtained from the fluid mode peakforce tapping AFM and the relatively high intensity of D band in the Raman spectra.

Keywords: anisotropic etching; armchair-edged; atomic force microscopy; graphene; water vapor.

Publication types

Research Support, Non-U.S. Gov't