Graphene on Au-coated SiO x substrate: Its core-level photoelectron microspectroscopy study

Jhih Wei Chen, Chiang Lun Wang, Hung Wei Shiu, Chi Yuan Lin, Chen Shiung Chang, Forest Shih Sen Chien, Chia Hao Chen, Yi Chun Chen, Chung Lin Wu

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

The core-level electronic structures of exfoliated graphene sheets on a Au-coated SiO x substrate have been studied using synchrotron radiation photoelectron spectroscopy (SR-PES) on a micron scale. The graphene's visibility on the Au-coated SiO x substrate was first demonstrated by micro optical characterization, and then an SR-PES study was conducted. Because of the elimination of charging effect, a precise C 1s core-level characterization shows graphitic and contaminated carbon states of graphene. Different levels of Au-coating-induced p-type doping on single- and double-layer graphene sheets were also examined in the C 1s core-level shift. The Au-coated SiO x substrate can be treated as a simple but highthroughput platform for in situ studying graphene under further hybridization by PES.

原文English
文章編號085101
期刊Applied Physics Express
5
發行號8
DOIs
出版狀態Published - 2012 8月

All Science Journal Classification (ASJC) codes

  • 工程 (全部)
  • 物理與天文學 (全部)

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