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Enhanced Power Conversion Efficiency in PCDTBT/PC70BM Bulk Heterojunction Photovoltaic Devices with Embedded Silver Nanoparticle Clusters

Authors

  • Dong Hwan Wang,

    1. Center for Polymers and Organic Solids, University of California, Santa Barbara, California, 93106, USA
    2. Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, (BK 21 Graduate Program), 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
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  • Keum Hwan Park,

    1. Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, (BK 21 Graduate Program), 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
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  • Jung Hwa Seo,

    1. Department of materials physics, college of natural science, Dong-A University, 840 Hadan2dong, Sahagu, Busan 604-714, Republic of Korea
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  • Jason Seifter,

    1. Center for Polymers and Organic Solids, University of California, Santa Barbara, California, 93106, USA
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  • Ji Hye Jeon,

    1. Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, (BK 21 Graduate Program), 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
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  • Jung Kyu Kim,

    1. Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
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  • Jong Hyeok Park,

    Corresponding author
    1. Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
    • Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
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  • O Ok Park,

    Corresponding author
    1. Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, (BK 21 Graduate Program), 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
    2. Department of Energy Systems Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 50-1, Sang-ri, Hyeongpung-myeon, Dalseong-gun, Daegu 711-873, Republic of Korea
    • Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, (BK 21 Graduate Program), 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
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  • Alan J. Heeger

    Corresponding author
    1. Center for Polymers and Organic Solids, University of California, Santa Barbara, California, 93106, USA
    • Center for Polymers and Organic Solids, University of California, Santa Barbara, California, 93106, USA.
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Abstract

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The use of size-controlled Ag nanoparticles (NPs) synthesized by a polyol process in the BHJ shows improved values of Jsc, FF, and the EQE. These results are due to an enhanced light absorption caused by the plasmonic field effect of Ag cluster from NPs and improved charge transport in the active layer. Ag clusters reduce the series resistance and induce an efficient charge transport system in the BHJ active layer.

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