Graphitic carbon growth on crystalline and amorphous oxide substrates using molecular beam epitaxy.
We report graphitic carbon growth on crystalline and amorphous oxide substrates by using carbon molecular beam epitaxy. The films are characterized by Raman spectroscopy and X-ray photoelectron spectroscopy. The formations of nanocrystalline graphite are observed on silicon dioxide and glass, while mainly sp2 amorphous carbons are formed on strontium titanate and yttria-stabilized zirconia. Interestingly, flat carbon layers with high degree of graphitization are formed even on amorphous oxides. Our results provide a progress toward direct graphene growth on oxide materials.PACS: 81.05.uf; 81.15.Hi; 78.30.Ly.
Department of Physics and Graphene Research Institute, Sejong University, Seoul 143-747, South Korea. schun@sejong.ac.kr.
Sahng-Kyoon
SK
Jerng
Dong
D
Seong Yu
Jae
J
Hong Lee
Christine
C
Kim
Seokhyun
S
Yoon
Seung-Hyun
SH
Chun