| Light trapping in ultrathin plasmonic solar cells. | |
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MedLine Citation:
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PMID: 20588593 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We report on the design, fabrication, and measurement of ultrathin film a-Si:H solar cells with nanostructured plasmonic back contacts, which demonstrate enhanced short circuit current densities compared to cells having flat or randomly textured back contacts. The primary photocurrent enhancement occurs in the spectral range from 550 nm to 800 nm. We use angle-resolved photocurrent spectroscopy to confirm that the enhanced absorption is due to coupling to guided modes supported by the cell. Full-field electromagnetic simulation of the absorption in the active a-Si:H layer agrees well with the experimental results. Furthermore, the nanopatterns were fabricated via an inexpensive, scalable, and precise nanopatterning method. These results should guide design of optimized, non-random nanostructured back reflectors for thin film solar cells. |
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Authors:
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Vivian E Ferry; Marc A Verschuuren; Hongbo B T Li; Ewold Verhagen; Robert J Walters; Ruud E I Schropp; Harry A Atwater; Albert Polman |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
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: A237-45 Citation Subset: - |
Affiliation:
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Center for Nanophotonics, FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands. vivianf@caltech.edu |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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