Cholesteric liquid crystal-carbon nanotube hybrid architectures for gas detection

Chin Kai Chang, Shih Wen Chiu, Hui Lung Kuo, Kea Tiong Tang

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number043501
JournalApplied Physics Letters
Volume100
Issue number4
DOIs
Publication statusPublished - 2012 Jan 23

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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