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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
NOGUEIRA, J. S.; MATTOSO, L. H. C.; FARIA, R. M. |
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Afiliação: |
UFMT; EMBRAPA-CNPDIA; USP-IFSC. |
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Título: |
AC conductivity of poly(o-methoxyaniline). |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON ELECTRETS, 9., Sept. 1996, Shangai, China. Call for papers... Shangai: Tongji University/IEEE the Dielectrics & Electrical Insulation Society, 1996. |
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Páginas: |
p. 145. |
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Idioma: |
Inglês |
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Conteúdo: |
The AC conductivity of doped poly(o-methoxyaniline) (POMA) films, at temperatures between 4.2 and 298K, has been measured. Both the DC conductivity and the critical frequency increases with the temperature, however the exponential factor is a temperature-independent quantity. It was also observed that above 10E5 Hz the real part of the conductivity tends to a plateau. 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. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01135naa a2200157 a 4500
001 1027118
005 1999-12-22
008 1996 bl --- 0-- u #d
100 1 $aNOGUEIRA, J. S.
245 $aAC conductivity of poly(o-methoxyaniline).
260 $c1996
300 $ap. 145.
520 $aThe AC conductivity of doped poly(o-methoxyaniline) (POMA) films, at temperatures between 4.2 and 298K, has been measured. Both the DC conductivity and the critical frequency increases with the temperature, however the exponential factor is a temperature-independent quantity. It was also observed that above 10E5 Hz the real part of the conductivity tends to a plateau. 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.
700 1 $aMATTOSO, L. H. C.
700 1 $aFARIA, R. M.
773 $tIn: INTERNATIONAL SYMPOSIUM ON ELECTRETS, 9., Sept. 1996, Shangai, China. Call for papers... Shangai: Tongji University/IEEE the Dielectrics & Electrical Insulation Society, 1996.
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Embrapa Instrumentação (CNPDIA) |
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