Szczegóły publikacji
Opis bibliograficzny
Effect of structural anisotropy on electrical and magnetic properties of polyaniline conducting films / P. Fedorko, J. Faure-Vincent, I. Fier, L. Walmsley, M. ŚNIECHOWSKI, J. F. Jacquot, A. Pron, J. P. Travers, D. Djurado // Synthetic Metals ; ISSN 0379-6779. — 2013 — vol. 166, s. 63–69. — Bibliogr. s. 69, Abstr.
Autorzy (9)
- Fedorko Pavol
- Faure-Vincent Jérôme
- Fier Igor
- Walmsley L. C.
- AGHŚniechowski Maciej
- Jacquot Jean François
- Pron Adam B.
- Travers Jean Pierre
- Djurado David
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 96764 |
|---|---|
| Data dodania do BaDAP | 2016-03-14 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.synthmet.2013.01.017 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Synthetic Metals |
Abstract
It is shown that highly conducting films of polyaniline protonated with di-esters of sulfosuccinic and sulfophthalic acids which contain alkyl- or alkoxy-type substituents exhibit highly anisotropic structural, electrical and magnetic properties. The layered-like structure of these films can be described as consisting of polyaniline chains which are mainly oriented parallel to the plane of the film and form regular out-of-plane stacks. These stacks are separated by bilayers of the dopant anions. Accordingly, the main anisotropy observed for solution cast films implies in-plane and out-of-plane measurements. An electrical anisotropy of about 80 is found for the in-plane and out-of-plane electronic conductivities at 5 K. The temperature dependences of the in-plane and out-of-plane conductivities are qualitatively similar and have been fitted as a series combination of variable-range-hopping-type and power law contributions. A maximum is observed in the temperature dependence of the electrical anisotropy at low temperature. The films also show a clear anisotropy of magnetization whose temperature and field characteristics depend on the chemical structure of the dopant anion. (C) 2013 Elsevier B.V. All rights reserved.