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Optical Absorption in Amorphous Silicon

Published online by Cambridge University Press:  10 February 2011

S. K. O'Leary ,
S. Zukotynski ,
J. M. Perz  and
L. S. Sidhu
S. K. O'Leary
Affiliation:
Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, Canada M5S 3G4
S. Zukotynski
Affiliation:
Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, Canada M5S 3G4
J. M. Perz
Affiliation:
Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, Canada M5S 3G4
L. S. Sidhu
Affiliation:
Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, Canada M5S 3G4
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Abstract

The role that disorder plays in shaping the form of the optical absorption spectrum of hydrogenated amorphous silicon is investigated. Disorder leads to a redistribution of states, which both reduces the ‘Tauc’ gap and broadens the absorption tail. The observed relationship between the ‘Tauc’ gap and the breadth of the absorption tail is thus explained.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 420: Symposium A – Amorphous Silicon Technology-1996 , 1996 , 545
Copyright
Copyright © Materials Research Society 1996

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References

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