Highly transparent and conducting graphene-embedded ZnO films with enhanced photoluminescence fabricated by aerosol synthesis
- Authors
- Kwon, Bob Jin; Kim, Jong-Young; Choi, Soon-Mok; An, Sung Jin
- Issue Date
- 28-Feb-2014
- Publisher
- IOP PUBLISHING LTD
- Keywords
- graphene; ZnO; photoluminescence; electrical conductivity; transparency
- Citation
- NANOTECHNOLOGY, v.25, no.8
- Journal Title
- NANOTECHNOLOGY
- Volume
- 25
- Number
- 8
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/19188
- DOI
- 10.1088/0957-4484/25/8/085701
- ISSN
- 0957-4484
- Abstract
- Graphene/inorganic hybrid structures have attracted increasing attention in research aimed at producing advanced optoelectronic devices and sensors. Herein, we report on aerosol synthesis of new graphene-embedded zinc oxide (ZnO) films with higher optical transparency (> 80% at visible wavelengths), improved electrical conductivity (> 2 orders of magnitude, similar to 20 k Omega = square), and enhanced photoluminescence (similar to 3 times), as compared to bare ZnO film. The ZnO/graphene composite films, in which reduced graphene oxide nanoplatelets (similar to 4 nm thick) are embedded in nanograined ZnO (similar to 50 nm in grain size), were fabricated from colloidal suspensions of graphene oxide with an aqueous zinc precursor. These new luminescent ZnO/graphene composites, with high optical transparency and improved electrical conductivity, are promising materials for use in optoelectronic devices.
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Collections - Department of Materials Science and Engineering > 1. Journal Articles
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