Elsevier

Solid State Communications

Volume 36, Issue 10, December 1980, Pages 851-856
Solid State Communications

Gap state spectroscopy using two beam photoconductivity in A-SI:H

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Abstract

Infrared quenching and enhancement of photoconductivity of amorphous silicon have been observed at room temperature using two beam photo-conductivity techniques. The photocurrent is established with hν > 1.5eV photons and modulated with photons with 0.6eV <hν < 1.4eV. The modulation signal spectrum is sensitive to sample preparation conditions and doping. Results are discussed in terms of simple two recombination center models.

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    1990, Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
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Supported in part by the MRL Program of the National Science Foundation at the University of Chicago and the NSF grant no. DMR77-11683.

∗∗

IBM Pre-Doctoral Fellow

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