Metastability in hydrogenated amorphous silicon: The Adler model revisited

Conference · Sat Aug 10 00:00:00 EDT 1991 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:7233286

Branz, H M; Crandall, R S ^[1]; Silver, M ^[2]

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1. Solar Energy Research Institute, Golden, Colorado 80401 (United States)
2. University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

Ten years after it was first proposed, the Adler model of the Staebler-Wronski effect in hydrogenated amorphous silicon (a-Si:H) remains plausible and elegant. Adler suggested that during illumination, charged threefold-coordinated silicon dangling-bond defects capture photogenerated electrons and holes and reconfigure into metastable neutral dangling bonds. We present recent refinements to this model and review the considerable experimental evidence that a-Si:H has important metastable charge-trapping defects. Problems with this and other models of the Staebler-Wronski effect are discussed.

• DOE Contract Number: AC02-83CH10093
• OSTI ID: 7233286
• Report Number(s): CONF-910225--
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (United States), Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Vol. 234:1; ISSN 0094-243X; ISSN APCPC
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
AMORPHOUS STATE
ELECTRON SPIN RESONANCE
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROGEN ADDITIONS
MAGNETIC RESONANCE
METASTABLE STATES
PHOTOELECTROMAGNETIC EFFECTS
PHOTOVOLTAIC EFFECT
RESONANCE
SEMIMETALS
SILICON
STABILITY