Polymer Photovoltaic Cells: Enhanced Efficiencies via a Network of Internal Donor-Acceptor Heterojunctions

DOI Web Site 被引用文献437件
  • G. Yu
    Institute for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93106-5090, USA.
  • J. Gao
    Institute for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93106-5090, USA.
  • J. C. Hummelen
    Institute for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93106-5090, USA.
  • F. Wudl
    Institute for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93106-5090, USA.
  • A. J. Heeger
    Institute for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93106-5090, USA.

書誌事項

公開日
1995-12-15
DOI
  • 10.1126/science.270.5243.1789
公開者
American Association for the Advancement of Science (AAAS)

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説明

<jats:p> The carrier collection efficiency (η <jats:sub>c</jats:sub> ) and energy conversion efficiency (η <jats:sub>e</jats:sub> ) of polymer photovoltaic cells were improved by blending of the semiconducting polymer with C <jats:sub>60</jats:sub> or its functionalized derivatives. Composite films of poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene) (MEH-PPV) and fullerenes exhibit η <jats:sub>c</jats:sub> of about 29 percent of electrons per photon and η <jats:sub>e</jats:sub> of about 2.9 percent, efficiencies that are better by more than two orders of magnitude than those that have been achieved with devices made with pure MEH-PPV. The efficient charge separation results from photoinduced electron transfer from the MEH-PPV (as donor) to C <jats:sub>60</jats:sub> (as acceptor); the high collection efficiency results from a bicontinuous network of internal donor-acceptor heterojunctions. </jats:p>

収録刊行物

  • Science

    Science 270 (5243), 1789-1791, 1995-12-15

    American Association for the Advancement of Science (AAAS)

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