Light Trapping in Ultrathin Monocrystalline Silicon Solar Cells

Authors

  • Ki Jun Yu,

    1. Department of Electrical and Computer Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Li Gao,

    1. Department of Material Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Jae Suk Park,

    1. Department of Electrical and Computer Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Yu Ri Lee,

    1. Department of Electrical and Computer Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Christopher J. Corcoran,

    1. Department of Chemistry, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Ralph G. Nuzzo,

    1. Department of Chemistry, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Debashis Chanda,

    Corresponding author
    1. NanoScience Technology Center, College of Optics and Photonics (CREOL), University of Central Florida, Orlando, FL 32816, USA
    • Debashis Chanda, NanoScience Technology Center, College of Optics and Photonics (CREOL), University of Central Florida, Orlando, FL 32816, USA

      John A. Rogers, Department of Materials Science and Engineering, Electrical and Computer Engineering, Chemistry, Bioengineering, and Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA.

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  • John A. Rogers

    Corresponding author
    1. Department of Materials Science and Engineering, Electrical and Computer Engineering, Chemistry, Bioengineering, and Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
    • Debashis Chanda, NanoScience Technology Center, College of Optics and Photonics (CREOL), University of Central Florida, Orlando, FL 32816, USA

      John A. Rogers, Department of Materials Science and Engineering, Electrical and Computer Engineering, Chemistry, Bioengineering, and Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA.

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Abstract

original image

Light-trapping schemes implemented with ultrathin, 3 μm thick silicon solar cells offer excellent opportunities for greatly enhanced absorption and corresponding improvements in efficiency of operation. Optically optimized cells of this type yield energy conversion efficiencies that are higher by ≈190% compared to otherwise identical cells that do not exploit light-trapping features, consistent with optical modeling results.

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