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Advanced Materials

Efficient and Flexible ITO-Free Organic Solar Cells Using Highly Conductive Polymer Anodes

Authors

  • Seok-In Na,

    1. Heeger Center for Advanced Materials Department of Materials Science and Engineering Gwangju Institute of Science and Technology 1 Oryong-Dong, Buk-Gu, Gwangju 500-712 (Korea)
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  • Seok-Soon Kim,

    1. School of Materials Science and Chemical Engineering Kunsan National University Kunsan, Chonbuk, 573-701(Korea)
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  • Jang Jo,

    1. Heeger Center for Advanced Materials Department of Materials Science and Engineering Gwangju Institute of Science and Technology 1 Oryong-Dong, Buk-Gu, Gwangju 500-712 (Korea)
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  • Dong-Yu Kim

    Corresponding author
    1. Heeger Center for Advanced Materials Department of Materials Science and Engineering Gwangju Institute of Science and Technology 1 Oryong-Dong, Buk-Gu, Gwangju 500-712 (Korea)
    • Heeger Center for Advanced Materials Department of Materials Science and Engineering Gwangju Institute of Science and Technology 1 Oryong-Dong, Buk-Gu, Gwangju 500-712 (Korea).
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  • We thank Dr. A. Sautter and Dr. A. Elschner from H.C. Starck for their stimulating discussions and for providing PEDOT:PSS (PH 500). This work was financially supported by the Heeger Center for Advanced Materials (HCAM), the Ministry of Education of Korea through Brain Korea 21 (BK21) program, and the Korea Science and Engineering Foundation (KOSEF) through the National Research Lab Program funded by the Korean government (MEST, M10500 000077-06J0000-07710). Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

ITO-free organic solar cells are fabricated on glass and on flexible substrates. The efficiencies of these cells on glass and plastic substrates (3.27% and 2.8%, respectively) were comparable to those of ITO-based devices (3.66% and 2.9%, respectively). Furthermore, in the flexibility test the ITO-free cells on flexible substrates manifested superior mechanical robustness compared with ITO-based cells.

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