Solar Cells: Exciton Dissociation and Charge-Transport Enhancement in Organic Solar Cells with Quantum-Dot/N-doped CNT Hybrid Nanomaterials (Adv. Mater. 14/2013)

Authors

  • Ju Min Lee,

    1. Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Byoung-Hwa Kwon,

    1. Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Hyung Il Park,

    1. Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea
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  • Hoyeon Kim,

    1. Department of Electrical Engineering, KAIST, Daejeon, 305-701, Republic of Korea
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  • Min Gyu Kim,

    1. Pohang Accelerator Laboratory (PAL), Pohang 790-784, Republic of Korea
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  • Ji Sun Park,

    1. Energy Nano Materials Research Center, Korea Electronics Technology Institute (KETI), Seongnam, 463-816, Republic of Korea
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  • E Su Kim,

    1. Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea
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  • Seunghyup Yoo,

    1. Department of Electrical Engineering, KAIST, Daejeon, 305-701, Republic of Korea
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  • Duk Young Jeon,

    Corresponding author
    1. Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea
    • Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea.
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  • Sang Ouk Kim

    Corresponding author
    1. Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea
    • Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Department of Materials Science and Engineering, KAIST, Daejeon, 305-701, Republic of Korea
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Abstract

original image

QD/CNT hybrid nanomaterials enhance the exciton dissociation and electron transport in the bulk-heterojunction active layer of organic solar cells, as described by Sang Ouk Kim, Duk Young Jeon, and co-workers on page 2011. InP quantum dots (QDs) spontaneously bind at N-doped carbon nanotubes via electrostatic attraction. While the InP QDs encouraged the exciton dissociation, NCNTs enhanced the transport of the separated electrons. Such a synergistic effect successfully improved the PCE from 4.68% to 6.11%, which corresponds to 31% enhancement.

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