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1/f Noise in Mott Variable Range Hopping Conduction in p-type Amorphous Silicon
Published online by Cambridge University Press: 01 June 2015
Abstract
We report on electrical conductivity and noise measurements made on p-type hydrogenated amorphous silicon (a-Si:H) thin films prepared by Plasma Enhanced Chemical Vapor Deposition (PECVD). The temperature dependent electrical conductivity can be described by the Mott Variable Range Hopping mechanism. The noise at temperatures lower than ∼ 400K is dominated by a 1/f component which follows the Hooge model and correlates with the Mott conductivity. At high temperatures there is an appreciable G-R noise component.
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- Copyright © Materials Research Society 2015
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