2014
DOI: 10.1139/cjp-2013-0610
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Dependence of open circuit voltage in a-Si:H and μc-Si:H solar cells on defect density in absorber layer varied by 2 MeV electron bombardment

Abstract: Theoretically predicted values of the open circuit voltage (V OC ) for a-Si:H or c-Si:H based solar cells are substantially higher than the values achieved in of state-of-the-art devices. Fundamentally, open circuit voltage is determined by generation-recombination kinetics, where recombination is often controlled by the defect density in the absorber layer of a solar cell. The latter aspect is the focus of the paper. The relation between the V OC and the bulk recombination in the absorber layer is addressed i… Show more

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Cited by 2 publications
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“…However, it improves to a certain extent with increasing i‐layer thickness for solar cells deposited on HF etched ZnO and LPCVD ZnO. Reduction of V oc can have different reasons such as increase of i‐layer defect density or formation of shunts Refs. due to nano‐cracks formed during the deposition on top of a front texture with very steep features.…”
Section: Discussionmentioning
confidence: 99%
“…However, it improves to a certain extent with increasing i‐layer thickness for solar cells deposited on HF etched ZnO and LPCVD ZnO. Reduction of V oc can have different reasons such as increase of i‐layer defect density or formation of shunts Refs. due to nano‐cracks formed during the deposition on top of a front texture with very steep features.…”
Section: Discussionmentioning
confidence: 99%