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Are the Current Models Helpful to Understanding Staebler-Wronski Degradation?

Published online by Cambridge University Press:  21 March 2011

Bolko von Roedern
Bolko von Roedern*
Affiliation:
National Renewable Energy Laboratory (NREL) 1617 Cole Blvd., Golden, CO 80401-3393, U.S.A.
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Abstract

This contribution reviews the compatibility of Staebler-Wronski models with experimental data and observations. The review will show that neither the “bond-breaking models” (originally proposed by Dersch and Stutzmann) nor the “defect conversion” models (originally proposed by Adler) can explain all observations on films and/or solar cells. It has been well accepted for some time that experimental stress and recovery phenomena, both on films and devices, always identify both “slow” and “fast” degradation and recovery mechanisms. It is argued that the quintessential understanding of the Staebler-Wronski mechanisms will come from identifying a fundamental physical process that provides a quantitative understanding of the “coupling” between the slow and fast mechanisms.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 808: Symposium A – Amorphous and Nanocrystaline Silicon Science and Technology-2004 , 2004 , A4.41
Copyright
Copyright © Materials Research Society 2004

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References

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