Journal
APPLIED PHYSICS LETTERS
Volume 83, Issue 4, Pages 782-784Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1595153
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The open-circuit voltage (V-oc) of hydrogenated amorphous silicon solar cells has been studied experimentally and by computer simulation. We find that band gap and defect states affect V-oc significantly. Hydrogen (H-2) dilution widens the band gap and reduces density of defect states; both contribute to larger V-oc and better fill factor in H-2 diluted solar cells. Valence band tail narrowing could affect V-oc, but is not included in this study due to lack of available data. (C) 2003 American Institute of Physics.
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