Role of mechanical stress in the light-induced degradation of hydrogenated amorphous silicon

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Abstract

The correlation between the high intrinsic mechanical stresses in plasma-deposited hydrogenated amorphous silicon and the magnitude of the light-induced degradation in this material (Staebler-Wronski effect) has been studied for films with different thicknesses and for various substrate materials. The experimental results suggest that the creation of metastable defects occurs mainly in the strained region of the films near the substrate, and that the number of these states is roughly proportional to the total stress in a given sample.

Original languageEnglish
Pages (from-to)21-23
Number of pages3
JournalApplied Physics Letters
Volume47
Issue number1
DOIs
StatePublished - 1985
Externally publishedYes

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