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Visible Light Emission in Silicon-Interface Adsorbed Gas Superlattices

Published online by Cambridge University Press:  28 February 2011

Raphael Tsu
Affiliation:
University of North Carolina at Charlotte, Charlotte, NC 28223
Jonder Morais
Affiliation:
University of North Carolina at Charlotte, Charlotte, NC 28223
Amanda Bowhill
Affiliation:
University of North Carolina at Charlotte, Charlotte, NC 28223
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Abstract

Having an indirect fundamental bandgap, unlike III-V or II-VI compound semiconductors, silicon has not played a role in optoelectronic applications such as injection lasers and light emitting diodes. In an attempt to introduce a sufficient quantum size effect, we present the experimental results on a new type of silicon based superlattices consisting of alternating layers of silicon and monolayers of adsorbed gases, Si/IAG multilayers (Si/Interface Adsorbed Gas), constructed by repeated interruptions of silicon deposition with adsorbed gases of oxygen and hydrogen. Fairly strong visible luminescence has been observed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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References

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