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arXiv · 1205.5117

Graphene on Au-coated SiOx substrate: Its core-level photoelectron micro-spectroscopy 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
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Abstract

The core-level electronic structures of the exfoliated graphene sheets on a Au-coated SiOx substrate have been studied by synchrotron radiation photoelectron spectroscopy (SR-PES) on a micron-scale. The graphene was firstly demonstrated its visibility on the Au-coated SiOx substrate by micro-optical characterization, and then conducted into SR-PES study. Because of the elimination of charging effect, precise C 1s core-level characterization clearly 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 SiOx substrate can be treated as a simple but high-throughput platform for in situ studying graphene under further hybridization by PES.

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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. 2012-05-23. Graphene on Au-coated SiOx substrate: Its core-level photoelectron micro-spectroscopy study. https://doi.org/10.1143/apex.5.085101

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