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The ability of a hybrid material that is based on cholesteric liquid crystal and carbon nanotube to detect acetone vapor is investigated. We find that the phase transition in this cholesteric liquid crystal-carbon nanotube hybrid will enable carbon nanotube to form conducting networks under the higher vapor concentration. This cholesteric liquid crystal-carbon nanotube hybrid exhibits an obvious change in reflected color and electrical resistance in the early and later stages of gas diffusion, respectively. This hybrid architecture has potential application as a gas sensor with a high dynamic range.
Published in:
Applied Physics Letters
(Volume:100
,
Issue:
4
)
Date of Publication: Jan 2012
- Page(s):
- 043501 - 043501-3
- ISSN :
- 0003-6951
- Digital Object Identifier :
- 10.1063/1.3679680
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 26 January 2012
- Issue Date :
- Jan 2012
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