Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Electronic transport in organic memories of chitosan with gold nanoparticles

Texto completo
Autor(es):
Valencia, German Ayala [1] ; Rodriguez Llanos, Jaiber Humberto [1] ; de Oliveira Vercik, Luci Cristina [1] ; Vercik, Andres [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Basic Sci Dept ZAB FZEA, BR-13635000 Pirassununga, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF POLYMER ENGINEERING; v. 34, n. 2, p. 105-111, APR 2014.
Citações Web of Science: 1
Resumo

The effect of gold nanoparticles (AuNPs) on the electronic transport in chitosan and chitosan/AuNPs films was experimentally and theoretically studied. The electronic properties (current-voltage curves) relative to the transport in the organic bulk in films were fitted to various models: space-charge limited current (SCLC), trapcharge limited current (TCLC) and scaling rule. However, it was found that the TCLC model, I-TCLC(V)alpha V1+ 1 and scaling rule, I(V)alpha(V-V-T)sic, describes better the electronic transport in chitosan and chitosan/AuNPs films. Current-voltage (I-V) curves showed an increasing conductivity with the AuNPs concentration. In addition, a bistable behavior was observed in chitosan/AuNPs films and it was attributed to the electron capture in the AuNPs. The results reported in this paper indicate that the electronic conductivity and bistable behavior in chitosan/AuNPs films could be controlled by the AuNPs incorporation on the chitosan matrix. (AU)

Processo FAPESP: 10/50424-3 - Desenvolvimento e caracterização de filmes nanoestruturados para biossensores condutimetricos de peróxido de hidrogênio
Beneficiário:Andrés Vercik
Linha de fomento: Auxílio à Pesquisa - Regular