Unique photoemission from single-layer graphene on a SiO2 layer by a substrate charging effect

Hyunseob Lim; Hyun Jae Song; Minhyeok Son; Jae Yoon Baik; Hyun-Joon Shin; Hee Cheul Choi

doi:10.1039/C1CC12953H

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Unique photoemission from single-layer graphene on a SiO₂ layer by a substrate charging effect†

Hyunseob Lim,^a Hyun Jae Song,^a Minhyeok Son,^a Jae Yoon Baik,^b Hyun-Joon Shin*^b and Hee Cheul Choi*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam-Gu, Pohang, Korea
E-mail: choihc@postech.edu

^b Pohang Accelerator Laboratory and Department of Physics, Pohang University of Science and Technology (POSTECH), Korea
E-mail: shj001@postech.ac.kr

Abstract

Single-layer graphene (SLG) shows an anomalously large surface charging effect during scanning photoelectron microscopy (SPEM), which is distinguished from bi-layer graphene (BLG). The different behaviour is believed due to a different screening effect for SLG and BLG.

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Article information

DOI: https://doi.org/10.1039/C1CC12953H
Article type: Communication
Submitted: 19 May 2011
Accepted: 14 Jun 2011
First published: 28 Jun 2011

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Chem. Commun., 2011,47, 8608-8610

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Unique photoemission from single-layer graphene on a SiO₂ layer by a substrate charging effect

H. Lim, H. J. Song, M. Son, J. Y. Baik, H. Shin and H. C. Choi, Chem. Commun., 2011, 47, 8608 DOI: 10.1039/C1CC12953H

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