P-type semiconducting gas sensing behavior of nanoporous rf sputtered CaCu3Ti4O12 thin films


Autoria(s): Joanni, E.; Savu, R.; Bueno, Paulo Roberto; Longo, Elson; Varela, José Arana
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

31/03/2008

Resumo

The fabrication of nanoporous sputtered CaCu3Ti4O12 thin films with high gas sensitivity is reported in this work. The porous microstructure and the nanocrystalline nature of the material promoted the diffusion of the atmosphere into the film, shortening the response time of the samples. Behaving as p-type semiconductor, the material presents enhanced sensitivity even at low working temperatures. Impedance spectroscopy measurements were performed in order to investigate the mechanisms responsible for the performance of the devices. (C) 2008 American Institute of Physics.

Formato

3

Identificador

http://dx.doi.org/10.1063/1.2905810

Applied Physics Letters. Melville: Amer Inst Physics, v. 92, n. 13, p. 3, 2008.

0003-6951

http://hdl.handle.net/11449/42353

10.1063/1.2905810

WOS:000254669900044

WOS000254669900044.pdf

Idioma(s)

eng

Publicador

American Institute of Physics (AIP)

Relação

Applied Physics Letters

Direitos

closedAccess

Tipo

info:eu-repo/semantics/article