High-Efficiency Polymer Solar Cells Achieved by Doping Plasmonic Metallic Nanoparticles into Dual Charge Selecting Interfacial Layers to Enhance Light Trapping

Authors

  • Xi Yang,

    1. Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA
    2. State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310027, P. R. China
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Chu-Chen Chueh,

    1. Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA
    2. Department of Chemical Engineering and Institute of Polymer Science and Engineering, National Taiwan University, Taipei 106, Taiwan
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Chang-Zhi Li,

    1. Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA
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  • Hin-Lap Yip,

    1. Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA
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  • Peipei Yin,

    1. State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310027, P. R. China
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  • Hongzheng Chen,

    Corresponding author
    1. State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310027, P. R. China
    • State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310027, P. R. China.
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  • Wen-Chang Chen,

    1. Department of Chemical Engineering and Institute of Polymer Science and Engineering, National Taiwan University, Taipei 106, Taiwan
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  • Alex K-Y. Jen

    Corresponding author
    1. Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA
    2. State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310027, P. R. China
    • Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA
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Abstract

Significantly increased power conversion efficiency (PCE) of polymer solar cells (PSCs) is achieved by applying a plasmonic enhanced light trapping strategy to a low bandgap conjugated polymer, poly(indacenodithiophene- co-phananthrene-quinoxaline) (PIDT-PhanQ) and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) based bulk-heterojunction (BHJ) system. By doping both the rear and front charge-selecting interfacial layers of the device with different sizes of Au NPs, the PCE of the devices is improved from 6.65% to 7.50% (13% enhancement). A detailed study of processing, characterization, microscopy, and device fabrication is conducted to understand the underlying mechanism for the enhanced device performance. The success of this work provides a simple and generally applicable approach to enhance light harnessing of low bandgap polymers in PSCs.

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