Illumination-induced reversible changes in the valence band density of states of hydrogenated amorphous silicon
โ Scribed by G. Srinivasan; S.K. Kulkarni; V.G. Bhide; A.S. Nigavekar
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 358 KB
- Volume
- 139
- Category
- Article
- ISSN
- 0375-9601
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๐ SIMILAR VOLUMES
We observe a reversible photo-induced modification in the bulk density of gap states in hydrogenated amorphous silicon associated with the Staebler-Wronski effect. Detailed analysis of deep level transient spectroscopy, admittance and thermally stimulated capacitance measurements indicates that as a
Hydrogen-induced metastability is analysed by a density of states distribution for bonded hydrogen, which describes the alternative hydrogen sites and the effects of disorder. The metastability is explained by the redistribution of hydrogen following illumination, annealing or a shift of the Fermi e