INVESTIGADORES
PONCE miguel Adolfo
artículos
Título:
Gas in-diffusion contribution to impedance in tin oxide thick films
Autor/es:
M.A. PONCE, C. MALAGU, M.C. CAROTTA, G. MARTINELLI, Y C.M. ALDAO
Revista:
JOURNAL OF APPLIED PHYSICS
Editorial:
AIP
Referencias:
Año: 2008 vol. 104 p. 1 - 5
ISSN:
0021-8979
Resumen:
The ac electrical resistance and capacitance of SnO2 thick films under vacuum and air atmosphere
were analyzed using the ColeCole plot. To fit the experimental results, a simple circuit model that
considers a capacitance and a resistance in parallel was employed. An explanation for the resistance
variation considering spherical grains with different characteristics is proposed. A careful analysis of
the resulting depletion layers and doping levels gives evidence for gas diffusion into the grains.
were analyzed using the ColeCole plot. To fit the experimental results, a simple circuit model that
considers a capacitance and a resistance in parallel was employed. An explanation for the resistance
variation considering spherical grains with different characteristics is proposed. A careful analysis of
the resulting depletion layers and doping levels gives evidence for gas diffusion into the grains.
2 thick films under vacuum and air atmosphere
were analyzed using the ColeCole plot. To fit the experimental results, a simple circuit model that
considers a capacitance and a resistance in parallel was employed. An explanation for the resistance
variation considering spherical grains with different characteristics is proposed. A careful analysis of
the resulting depletion layers and doping levels gives evidence for gas diffusion into the grains.