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Thermopower and Conductivity Activation Energies in Hydrogenated Amorphous Silicon

Published online by Cambridge University Press:  10 February 2011

H. M. Dyalsingh  and
J. Kakalios
H. M. Dyalsingh
Affiliation:
The University of Minnesota, School of Physics and Astronomy, Minneapolis, MN, 55455 USA.
J. Kakalios
Affiliation:
The University of Minnesota, School of Physics and Astronomy, Minneapolis, MN, 55455 USA.
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Abstract

The long range fluctuation model has been widely used to account for the difference in activation energies seen experimentally in dark conductivity and thermopower measurements in hydrogenated amorphous silicon. We report on a test of this model using measurements of the conductivity and thermoelectric effects carried out in both open and short circuit configurations. While the thermopower activation energy is less than that of the dark conductivity, the short circuit Seebeck conductivity is found to be nearly identical to the dark conductivity in both activation energy and magnitude, consistent with the long range fluctuation model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 420: Symposium A – Amorphous Silicon Technology-1996 , 1996 , 735
Copyright
Copyright © Materials Research Society 1996

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