Effect of surface pressure on the insulator to metal transition of a langmuir polyaniline monolayer

Jie Zhang; Anna L. Barker; Daniel Mandler; Patrick R. Unwin

doi:10.1021/ja036146q

Effect of surface pressure on the insulator to metal transition of a langmuir polyaniline monolayer

Jie Zhang, Anna L. Barker, Daniel Mandler^*, Patrick R. Unwin

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

A remarkable change in the conductivity of a polyaniline (PAN) Langmuir monolayer in the conducting state, as a function of surface pressure, has been observed using scanning electrochemical microscopy (SECM). The film conductivity, as expressed by the SECM current response of a redox mediator, was measured in-situ in a Langmuir film balance. The conductivity of the film increases significantly with surface pressure, above a threshold value of ca. 20 mN m^-1.

Original language	English
Pages (from-to)	9312-9313
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	125
Issue number	31
DOIs	https://doi.org/10.1021/ja036146q
State	Published - 6 Aug 2003

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abstract = "A remarkable change in the conductivity of a polyaniline (PAN) Langmuir monolayer in the conducting state, as a function of surface pressure, has been observed using scanning electrochemical microscopy (SECM). The film conductivity, as expressed by the SECM current response of a redox mediator, was measured in-situ in a Langmuir film balance. The conductivity of the film increases significantly with surface pressure, above a threshold value of ca. 20 mN m-1.",

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AB - A remarkable change in the conductivity of a polyaniline (PAN) Langmuir monolayer in the conducting state, as a function of surface pressure, has been observed using scanning electrochemical microscopy (SECM). The film conductivity, as expressed by the SECM current response of a redox mediator, was measured in-situ in a Langmuir film balance. The conductivity of the film increases significantly with surface pressure, above a threshold value of ca. 20 mN m-1.

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Effect of surface pressure on the insulator to metal transition of a langmuir polyaniline monolayer

Abstract

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