期刊
THIN SOLID FILMS
卷 595, 期 -, 页码 193-199出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2015.11.002
关键词
Transparent electrodes; Graphene; Multi-walled carbon nanotubes; Hybrid films; Thin films; Free standing; Sheet resistance; Transmittance; Optoelectronics; Optical conductivity
类别
资金
- Council of Scientific and Industrial Research-Senior Research Fellowship (CSIR-SRF)
- ICMR-SRF
- RGNF-JRF
- Nanotechnology: Impact on Safety, Health and Environment Program (CSIR-NANOSHE) [BSC0112]
- Central Scientific Instruments Organization (CSIR-CSIO)
- Academy of Scientific and Innovative Research (AcSIR-CSIR-CSIO Chandigarh)
Here we report a wet chemical technique to obtain transparent electrodes for optoelectronic devices. This technique is simple, facile, low cost and an effective way to prepare ultrathin free standing hybrid graphene/multiwalled carbon nanotubes (MWCNT) films. The graphene/MWCNT films, up to 36 mm in diameter, with controllable thickness and root mean square surface roughness of the order of 12.6 nm are prepared. The ratio of graphene/MWCNT is optimized to make them free standing and easily transferrable on various substrates. The ratio of direct current conductivity to the optical conductivity (sdc/sopt) which is considered as figure of merit for transparent conductors, is enhanced to 10.27 for graphene/MWCNT hybrid films. The prepared films showed outstanding transmittance up to 87.3 +/- 1% at 550 nm, 87.9 +/- 1% at 800 nm and sheet resistance of 136 +/- 22.4 Omega/sq. (C) 2015 Elsevier B.V. All rights reserved.
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