| Light Trapping in Solar Cells: Can Periodic Beat Random? | |
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MedLine Citation:
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PMID: 22375932 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Theory predicts that periodic photonic nanostructures should outperform their random counterparts in trapping light in solar cells. However, the current certified world-record conversion efficiency for amorphous silicon thin-film solar cells, which strongly rely on light trapping, was achieved on the random pyramidal morphology of transparent zinc oxide electrodes. Based on insights from waveguide theory, we develop tailored periodic arrays of nanocavities on glass fabricated by nanosphere lithography, which enable a cell with a remarkable short-circuit current density of 17.1 mA/cm2 and a high initial efficiency of 10.9%. A direct comparison with a cell deposited on the random pyramidal morphology of state-of-the-art zinc oxide electrodes, replicated onto glass using nanoimprint lithography, demonstrates unambiguously that periodic structures rival random textures. |
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Authors:
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Corsin Battaglia; Ching-Mei Hsu; Karin Söderström; Jordi Escarré; Franz-Josef Haug; Mathieu Charrière; Mathieu Boccard; Matthieu Despeisse; Duncan Alexander; Marco Cantoni; Yi Cui; Christophe Ballif |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-2-29 |
Journal Detail:
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Title: ACS nano Volume: - ISSN: 1936-086X ISO Abbreviation: - Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-3-1 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101313589 Medline TA: ACS Nano Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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