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Flexible Polymer-Embedded Si Wire Arrays

Authors

  • Katherine E. Plass,

    1. California Institute of Technology Division of Chemistry and Chemical Engineering 1200 E. California Blvd. m/c 127-72 Pasadena, CA 91125 (USA)
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  • Michael A. Filler,

    1. California Institute of Technology Department of Applied Physics 1200 E. California Blvd. m/c 128-95 Pasadena CA 91125 (USA)
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  • Joshua M. Spurgeon,

    1. California Institute of Technology Division of Chemistry and Chemical Engineering 1200 E. California Blvd. m/c 127-72 Pasadena, CA 91125 (USA)
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  • Brendan M. Kayes,

    1. California Institute of Technology Department of Applied Physics 1200 E. California Blvd. m/c 128-95 Pasadena CA 91125 (USA)
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  • Stephen Maldonado,

    1. California Institute of Technology Division of Chemistry and Chemical Engineering 1200 E. California Blvd. m/c 127-72 Pasadena, CA 91125 (USA)
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  • Bruce S. Brunschwig,

    1. California Institute of Technology Division of Chemistry and Chemical Engineering 1200 E. California Blvd. m/c 127-72 Pasadena, CA 91125 (USA)
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  • Harry A. Atwater,

    Corresponding author
    1. California Institute of Technology Department of Applied Physics 1200 E. California Blvd. m/c 128-95 Pasadena CA 91125 (USA)
    • California Institute of Technology Department of Applied Physics 1200 E. California Blvd. m/c 128-95 Pasadena CA 91125 (USA).
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  • Nathan S. Lewis

    Corresponding author
    1. California Institute of Technology Division of Chemistry and Chemical Engineering 1200 E. California Blvd. m/c 127-72 Pasadena, CA 91125 (USA)
    • California Institute of Technology Division of Chemistry and Chemical Engineering 1200 E. California Blvd. m/c 127-72 Pasadena, CA 91125 (USA)
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  • This work was funded by BP Solar, the Department of Energy, and the Caltech Center for Sustainable Energy Research (CCSER). Use of facilities at the Center for Science and Engineering of Materials, and NSF MRSEC, is gratefully acknowledged. The authors also appreciate the assistance of Dr. Youli Li at the UC Santa Barbara Materials Research Laboratory. K. E. Plass and M. A. Filler contributed equally to this work. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

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Arrays of Si rods are embedded in PDMS and removed from the rigid growth substrate, resulting in a composite material that merges the benefits of single-crystalline silicon with the flexibility of a polymer. With this technique, solar cell absorber materials with the potential to achieve high efficiency can be prepared by high-temperature processing and transformed into a flexible, processable form.

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