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      Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical absorption increased in all polarizations

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      Author(s)
      Sefunc, M. A.
      Okyay, Ali Kemal
      Demir, Hilmi Volkan
      Date
      2011
      Source Title
      Optics Express
      Print ISSN
      1094-4087
      Publisher
      Optical Society of America
      Volume
      19
      Issue
      15
      Pages
      14200 - 14209
      Language
      English
      Type
      Article
      Item Usage Stats
      157
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      Abstract
      In P3HT:PCBM based organic solar cells we propose and demonstrate numerically plasmonic backcontact grating architectures for strong optical absorption enhanced in both transverse-magnetic and transverse-electric polarizations. Even when the active material is partially replaced by the metallic grating (without increasing the active layer film thickness), we show computationally that the light absorption in thin-film P3HT:PCBM is increased by a maximum factor of similar to 21% considering both polarizations under AM1.5G solar radiation and over a half-maximum incidence angle of 45 degrees (where the enhancement drops to its half) compared to the same cell without a grating. This backcontact grating outperforms the typical plasmonic grating placed in PEDOT:PSS layer. (C)2011 Optical Society of America.
      Keywords
      Heterojunction Photovoltaic Cells
      Design
      Enhancement
      Films
      Layer
      Permalink
      http://hdl.handle.net/11693/12095
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.19.014200
      Collections
      • Department of Electrical and Electronics Engineering 3702
      • Department of Physics 2397
      • Institute of Materials Science and Nanotechnology (UNAM) 1930
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