| Enhanced light trapping in thin-film solar cells by a directionally selective filter. | |
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MedLine Citation:
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PMID: 20588581 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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A directionally selective multilayer filter is applied to a hydrogenated amorphous silicon solar cell to improve the light trapping. The filter prevents non-absorbed long-wavelength photons from leaving the cell under oblique angles leading to an enhancement of the total optical path length for weakly absorbed light within the device by a factor of kappa(r) = 3.5. Parasitic absorption in the contact layers limits the effective path length improvement for the photovoltaic quantum efficiency to a factor of kappa(EQE) = 1.5. The total short-circuit current density increases by DeltaJ(sc) = 0.2 mAcm(-2) due to the directional selectivity of the Bragg-like filter. |
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Authors:
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Carolin Ulbrich; Marius Peters; Benedikt Bläsi; Thomas Kirchartz; Andreas Gerber; Uwe Rau |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Optics express Volume: 18 Suppl 2 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-30 Completed Date: 2010-10-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137103 Medline TA: Opt Express Country: United States |
Other Details:
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Languages: eng Pagination: A133-8 Citation Subset: - |
Affiliation:
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IEF5-Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, Germany. c.ulbrich@fz-juelich.de |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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