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Electric field enhancements in In2O3-coated single-walled carbon nanotubes

Title
Electric field enhancements in In2O3-coated single-walled carbon nanotubes
Author
이휘건
Keywords
THIN-FILMS; EMISSION; PERFORMANCE; ARRAYS; Chemistry; Materials Science
Issue Date
2014-09
Publisher
Elsevier Science B.V., Amsterdam.
Citation
Carbon, 2014, 76(-), P.378-385
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 nanoparticle 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: 1V to -1V) and also field emission (FE) analysis at high electric field (0-4.2V/μm). 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.
URI
http://www.sciencedirect.com/science/article/pii/S0008622314004357?via%3Dihubhttp://hdl.handle.net/20.500.11754/52185
ISSN
0008-6223
DOI
10.1016/j.carbon.2014.04.090
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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