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Chemical process to normalize the electrical properties of a-Se

Published online by Cambridge University Press:  03 March 2011

S. S. Badesha
Affiliation:
Xerox Webster Research Center, Xerox Corporation, 800 Phillips Road, 0114-39D, Webster, New York, 14580
M. A. Abkowitz
Affiliation:
Xerox Webster Research Center, Xerox Corporation, 800 Phillips Road, 0114-39D, Webster, New York, 14580
F. E. Knier
Affiliation:
Xerox Webster Research Center, Xerox Corporation, 800 Phillips Road, 0114-39D, Webster, New York, 14580
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Abstract

The influence of specific chemical dopants on the electrophotographic behavior of selenium and its alloys has been established in prior work. This communication describes a chemical procedure that has been found effective in removing electronically active impurities from amorphous selenium. The methodology involves converting contaminated selenium into a chemical intermediate that is separated by selective alcoholic dissolution and then reduced to high-purity selenium. The electrical characteristics of the amorphous films obtained by vacuum evaporation of the latter are determined directly from analysis of xerographic potentials.

Type
Rapid Communications
Copyright
Copyright © Materials Research Society 1986

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References

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