Heterogeneous Nucleation and High Orientation of ZnO Nanorods on Graphene
- Authors
- Lee, Hong Seok; Man, Minh Tan; Park, Kyoung-Duck; Oh, Hye Min; Kim, Jaesu; Jeong, Hyun; Kim, Yong Hwan; Jeong, Mun Seok
- Issue Date
- Nov-2015
- Publisher
- 한국물리학회
- Keywords
- Catalyst-free; Graphene; Seed-layer-free; ZnO nanorod
- Citation
- Journal of the Korean Physical Society, v.67, no.10, pp.1819 - 1823
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of the Korean Physical Society
- Volume
- 67
- Number
- 10
- Start Page
- 1819
- End Page
- 1823
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/142879
- DOI
- 10.3938/jkps.67.1819
- ISSN
- 0374-4884
- Abstract
- We report the realization of ZnO nanostructures on a graphene/SiO2/Si substrate by using a facile precursor-template synthesis technique through catalyst-free, seed-layer-free chemical vapor deposition. Vertical growth on the graphene buffer layers resulted in highly-oriented ZnO nanorods due to heterogeneous nucleation of the bond-centered sites on graphene. This demonstrates that the morphology of the structures is sensitive to the graphene substrate owing to the strong ZnOgraphene interaction. The photoluminescence exhibited distinctive band-edge emission and defect emission. The defect emission could be largely eradicated by covering the graphene and decreasing the ZnO-graphene spacing.
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