Charge transport at mid-gap in trans-(CH)x: An electrochemical study

J. H. Kaufman; Tze-chiang Chung; A. J. Heeger

doi:10.1016/0038-1098(83)90755-X

Charge transport at mid-gap in trans-(CH)_x: An electrochemical study

J. H. Kaufman, Tze-chiang Chung, A. J. Heeger

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

23 Scopus citations

Abstract

Electrochemical studies demonstrate that ∼300 ppm of charge (equal to the number of neutral solitons in undoped trans-(CH)_x) is removed at mid-gap. These charges are transported through the polyacetylene electrode via hopping among states at the center of the energy gap, in agreement with Kivelson's theory. From analysis of the data, we have been able to determine the soliton creation energy, E_s ≃ 0.5eV, which is in good agreement with the theoretical value, E_s = (2/π)Δ.

Original language	English (US)
Pages (from-to)	585-589
Number of pages	5
Journal	Solid State Communications
Volume	47
Issue number	8
DOIs	https://doi.org/10.1016/0038-1098(83)90755-X
State	Published - Jan 1 1983

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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abstract = "Electrochemical studies demonstrate that ∼300 ppm of charge (equal to the number of neutral solitons in undoped trans-(CH)x) is removed at mid-gap. These charges are transported through the polyacetylene electrode via hopping among states at the center of the energy gap, in agreement with Kivelson's theory. From analysis of the data, we have been able to determine the soliton creation energy, Es ≃ 0.5eV, which is in good agreement with the theoretical value, Es = (2/π)Δ.",

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N2 - Electrochemical studies demonstrate that ∼300 ppm of charge (equal to the number of neutral solitons in undoped trans-(CH)x) is removed at mid-gap. These charges are transported through the polyacetylene electrode via hopping among states at the center of the energy gap, in agreement with Kivelson's theory. From analysis of the data, we have been able to determine the soliton creation energy, Es ≃ 0.5eV, which is in good agreement with the theoretical value, Es = (2/π)Δ.

AB - Electrochemical studies demonstrate that ∼300 ppm of charge (equal to the number of neutral solitons in undoped trans-(CH)x) is removed at mid-gap. These charges are transported through the polyacetylene electrode via hopping among states at the center of the energy gap, in agreement with Kivelson's theory. From analysis of the data, we have been able to determine the soliton creation energy, Es ≃ 0.5eV, which is in good agreement with the theoretical value, Es = (2/π)Δ.

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