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Journal Article
Facile Fabrication of Properties-controllable Graphene Sheet
- Authors
- Jin Sik Choi, Hongkyw Choi, Ki-Chul Kim, Hu Young Jeong, Young-Jun Yu, Jin Tae Kim, Jin-Soo Kim, Jin-Wook Shin, Hyunsu Cho, Choon-Gi Choi
- Issue Date
- 2016-04
- Citation
- Scientific Reports, v.6, pp.1-7
- ISSN
- 2045-2322
- Publisher
- Nature Publishing Group
- Language
- English
- Type
- Journal Article
- Abstract
- Graphene has been received a considerable amount of attention as a transparent conducting electrode (TCE) which may be able to replace indium tin oxide (ITO) to overcome the significant weakness of the poor flexibility of ITO. Given that graphene is the thinnest 2-dimensional (2D) material known, it shows extremely high flexibility, and its lateral periodic honeycomb structure of sp2 -bonded carbon atoms enables ~2.3% of incident light absorption per layer. However, there is a trade-off between the electrical resistance and the optical transmittance, and the fixed absorption rate in graphene limits is use when fabricating devices. Therefore, a more efficient method which continuously controls the optical and electrical properties of graphene is needed. Here, we introduce a method which controls the optical transmittance and the electrical resistance of graphene through various thicknesses of the top Cu layers with a Cu/Ni metal catalyst structure used to fabricate a planar mesh pattern of single and multi-layer graphene. We exhibit a continuous transmittance change from 85% (MLG) to 97.6% (SLG) at an incident light wavelength of 550 nm on graphene samples simultaneously grown in a CVD quartz tube. We also investigate the relationships between the sheet resistances.
- KSP Keywords
- Carbon atoms, Catalyst structure, Electrical resistance, Facile fabrication, Graphene sheet, High flexibility, Indium Tin Oxide(ITO), Light absorption, Light wavelength, Mesh pattern, Metal catalyst
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
