Electric field enhancements in In2O3-coated single-walled carbon nanotubes
- Authors
- Lee, Jungwoo; Park, Taehee; Lee, Jongtaek; Lee, Sanghun; Park, Hyunjune; Yi, Whikun
- Issue Date
- Sep-2014
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- CARBON, v.76, pp.378 - 385
- Indexed
- SCIE
SCOPUS
- Journal Title
- CARBON
- Volume
- 76
- Start Page
- 378
- End Page
- 385
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143317
- DOI
- 10.1016/j.carbon.2014.04.090
- ISSN
- 0008-6223
- Abstract
- In2O3 nanoparticles are coated on the surfaces of single-walled carbon nanotubes (SWCNTs) by a successive ionic layer adsorption and reaction process. The thickness of the In2O3 nanopartide film is tuned by controlling the number of coating cycles. The electric field around the In2O3-coated SWCNTs is compared with that of pristine SWCNTs. Field enhancement of the In2O3-coated SWCNTs is confirmed by conductive atomic force microscopy at low electric field (contact mode: 1 V to -1 V) and also field emission (FE) analysis at high electric field (0-4.2 V/mu m). The uniformity and emission stability are also measured via FE analysis. Near infrared and X-ray photoemission spectroscopy data are suggested to explain the charge transfer, bandgap change between the In2O3 nanoparticles and SWCNTs, and the electric field enhancements in the In2O3-coated SWCNTs at both low and high electric field.
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