Effect of structural anisotropy on electrical and magnetic properties of polyaniline conducting films
PBN-AR
Instytucja
Wydział Chemiczny (Politechnika Warszawska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Synthetic Metals
ISSN
0379-6779
EISSN
Wydawca
Elsevier S.A.
DOI
Rok publikacji
2013
Numer zeszytu
Strony od-do
63-69
Numer tomu
166
Identyfikator DOI
Liczba arkuszy
0.5
Autorzy
(liczba autorów: 9)
Pozostali autorzy
+ 8
Słowa kluczowe
en
polyaniline ; anisotropy ; structure ; conductivity ; magnetic properties
Streszczenia
Język
en
Treść
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. © 2013 Elsevier B.V.
Inne
System-identifier
WUT395611
CrossrefMetadata from Crossref logo
Cytowania
Liczba prac cytujących tę pracę
Brak danych
Referencje
Liczba prac cytowanych przez tę pracę
Brak danych