Advanced Materials

ZnO Nanowire Arrays for Enhanced Photocurrent in PbS Quantum Dot Solar Cells (Adv. Mater. 20/2013)

Authors

  • Joel Jean,

    1. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-3138; Cambridge, MA 02139, USA
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  • Sehoon Chang,

    1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-5094, Cambridge, MA 02139, USA
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  • Patrick R. Brown,

    1. Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-3074, Cambridge, MA 02139, USA
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  • Jayce J. Cheng,

    1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-5094, Cambridge, MA 02139, USA
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  • Paul H. Rekemeyer,

    1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-5094, Cambridge, MA 02139, USA
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  • Moungi G. Bawendi,

    1. Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 6-221, Cambridge, MA 02139, USA
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  • Silvija Gradečak,

    1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-5094, Cambridge, MA 02139, USA
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  • Vladimir Bulović

    Corresponding author
    1. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-3138; Cambridge, MA 02139, USA
    • Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Ave., Rm. 13-3138; Cambridge, MA 02139, USA.
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Abstract

Colloidal quantum dot photovoltaics show great promise for future solar energy conversion applications but remain limited by inefficient charge carrier extraction. Ordered arrays of ZnO nanowires, shown here in blue, can decouple light absorption and carrier collection, yielding a significant relative enhancement in the photocurrent and efficiency of quantum dot solar cells. Further details can be found in the article by Vladimir Bulović and co-workers on page 2790.

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