Data/hora: 25/05/2024 09:49:19

Biblioteca(s): 	Embrapa Instrumentação.	
Data corrente: 	22/12/1999	
Data da última atualização: 	22/12/1999	
Autoria: 	NOGUEIRA, J. S.; MATTOSO, L. H. C.; FARIA, R. M.	
Afiliação: 	UFMT-Depto. de Fisica; EMBRAPA-CNPDIA; USP-IFSC.	
Título: 	Nomadic polarization in doped poly(o-methoxyaniline) films.	
Ano de publicação: 	1996	
Fonte/Imprenta: 	In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996.	
Páginas: 	p.380.	
Idioma: 	Inglês	
Notas: 	Ref.P3.173.	
Conteúdo: 	The AC conductivity of poly(o-methoxyaniline)-POMA films with various doping levels were studied in the temperature range of 4.2 to 298K. In the low frequency regime the conductivity is frequency-independent, but above a critical angular frequency it obeys an equation of the formAC conductivity approximately frequency exponential factor s. Both the DC conductivity and the critical frequency increases with temperature, whereas the exponential factor s is temperature-independent. Since the conduction of doped POMA is strongly dependent on the electronic mobility along the molecule backbone, a nomadic polarization model of quasi-one-dimensional solids was used to fit the experimental results. Values for the bulk mobility, the carrier density and the transition rate of the intermolecular charge transfer were estimated.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Instrumentação (CNPDIA)	
Exemplares: 	CNPDIA - (5628-1) - UPC - PL - -- - PROCI -  - 1996. - DIS