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Type: Artigo de periódico
Title: Polarons, Bipolarons, And Crystallization In Conducting Polymers: An Esr Study
Author: Sercheli M.S.
Walmsley L.
Rettori C.
Correa A.A.
Bulhoes L.O.S.
Pereira E.C.
Abstract: 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.
Rights: fechado
Identifier DOI: 
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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