Polarons, bipolarons, and crystallization in conducting polymers: An ESR study
Nenhuma Miniatura disponível
Data
2000-07-01
Autores
Sercheli, M. S.
Walmsley, L. [UNESP]
Rettori, C.
Correa, A. A.
Bulhões, L. O. S.
Pereira, E. C.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Electron spin resonance (ESR) experiments give extremely important information concerning spin arrangements in conducting polymers. This is evidenced by the behavior of the ESR lines as a function of temperature and microwave power. Our ESR data of pressed pellets of ClO- 4 doped poly(3-methylthiophene) (P3MT) synthesized at 25 °C show the predominance of polarons. Instead, the sample prepared at 5 °C shows the predominance of bipolarons. Besides, for both types of samples, crystallization, observed from the ESR data, has shown a rearrangement of spin species.
Descrição
Palavras-chave
Como citar
Physica Status Solidi (B) Basic Research, v. 220, n. 1, p. 631-634, 2000.