Artículo
Influence of particle size on the conductance of SnO2 thick films
Fecha de publicación:
06/03/2003
Editorial:
Elsevier
Revista:
Journal of the European Ceramic Society
ISSN:
0955-2219
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The electrical response of SnO2 thick films was found to be highly dependent on the grain size. This result can be explained as the consequence of the type of intergranular potential barriers developed at intergrains. Specifically, samples with smaller particle size have overlapped potential barriers and samples with higher particle size have separated potential barriers. Also, the influence of gas transport phenomena on the resistance of the gas sensor was investigated. From an analysis of the possible mechanisms involved in the oxygen diffusion, the Knudsen diffusion is suggested as the controlling step.
Palabras clave:
Defects
,
Diffusion
,
Electrical Properties
,
Films
,
Grain Size
,
Sensors
,
Sno 2
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Identificadores
Colecciones
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Ponce, Miguel Adolfo; Aldao, Celso Manuel; Castro, Miriam Susana; Influence of particle size on the conductance of SnO2 thick films; Elsevier; Journal of the European Ceramic Society; 23; 12; 6-3-2003; 2105-2111
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