Multilevel heterogeneity in electrochromic polyaniline films

V. F. Ivanov; K. V. Tcheberiako; A. A. Nekrasov; Anatoly V. Vannikov

doi:10.1117/12.431285

28 June 2001 Multilevel heterogeneity in electrochromic polyaniline films

V. F. Ivanov, K. V. Tcheberiako, A. A. Nekrasov, Anatoly V. Vannikov

Proceedings Volume 4511, Advanced Display Technologies: Basic Studies of Problems in Information Display (FLOWERS 2000); (2001) https://doi.org/10.1117/12.431285
Event: Advanced Display Technologies: Basic Studies of Problems in Information Display (FLOWERS'2000), 2000, Moscow, Russian Federation

Abstract

Electronic properties of polyaniline films depend strictly on their heterostructure influenced on the electronic structure and transport phenomena in these ones. We have obtained the evidences of existence of heterogeneity in molecular scale for the chemically prepared polyaniline and in microscopic and macroscopic scales for the vacuum deposited polyaniline films. The character of heterogeneity depends strictly on the nature of oxidant, concentrations, temperature, mass transfer and so on. The heterogeneity of the vacuum deposited polyaniline films influenced on their electrical conductivity, magnetic properties and the formation of so-called trapped charge. In turn these factors affect strictly on the electro chromic properties of polyaniline films. The principal reason of the heterogeneous structure formation is the autocatalytic character of the oxidation in course of synthesis and following processes. Based on these data we formulate hypothesis on the multilevel heterogeneity in polyaniline and other conducting polymers.

Citation Download Citation

V. F. Ivanov, K. V. Tcheberiako, A. A. Nekrasov, and Anatoly V. Vannikov "Multilevel heterogeneity in electrochromic polyaniline films", Proc. SPIE 4511, Advanced Display Technologies: Basic Studies of Problems in Information Display (FLOWERS 2000), (28 June 2001); https://doi.org/10.1117/12.431285

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