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Flexible High-Performance All-Inkjet-Printed Inverters: Organo-Compatible and Stable Interface Engineering

Authors

  • Seungjun Chung,

    1. Department of Electrical Engineering and Computer Science, Inter University Semiconductor Research Center (ISRC), Seoul National University, Seoul, 151–744, Korea
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  • Mi Jang,

    1. Department of Advanced Fiber Engineering, Optoelectronic Hybrids Research Center, Inha University, Incheon, 402–751, Korea
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  • Seon-Beom Ji,

    1. Department of Electrical Engineering and Computer Science, Inter University Semiconductor Research Center (ISRC), Seoul National University, Seoul, 151–744, Korea
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  • Hwarim Im,

    1. Department of Electrical Engineering and Computer Science, Inter University Semiconductor Research Center (ISRC), Seoul National University, Seoul, 151–744, Korea
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  • Narkhyeon Seong,

    1. Department of Electrical Engineering and Computer Science, Inter University Semiconductor Research Center (ISRC), Seoul National University, Seoul, 151–744, Korea
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  • Jewook Ha,

    1. Department of Electrical Engineering and Computer Science, Inter University Semiconductor Research Center (ISRC), Seoul National University, Seoul, 151–744, Korea
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  • Soon-Ki Kwon,

    1. School of Materials Science and Engineering and ERI, Gyeongsang National University, Jinju, 660–701, Korea
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  • Yun-Hi Kim,

    1. Department of Chemistry, Gyeongsang National University, Jinju, 660–701, Korea
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  • Hoichang Yang,

    Corresponding author
    1. Department of Advanced Fiber Engineering, Optoelectronic Hybrids Research Center, Inha University, Incheon, 402–751, Korea
    • Department of Advanced Fiber Engineering, Optoelectronic Hybrids Research Center, Inha University, Incheon, 402–751, Korea.
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  • Yongtaek Hong

    Corresponding author
    1. Department of Electrical Engineering and Computer Science, Inter University Semiconductor Research Center (ISRC), Seoul National University, Seoul, 151–744, Korea
    • Department of Electrical Engineering and Computer Science, Inter University Semiconductor Research Center (ISRC), Seoul National University, Seoul, 151–744, Korea
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Abstract

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High-performance all-inkjet-printed organic inverters are fabricated on flexible substrates. By introducing end-functionalized polystyrene on both surfaces of inkjet-printed source/drain Ag electrodes and poly(4-vinylphenol) dielectrics, organic-compatible and hydroxyl-free interfaces between those layers and 6,13-bis(triisopropylsilylethynyl)pentacene drastically reduce the interfacial trap and contact resistance. The resulting organic inverters show a full up-down switching performance and a high voltage gain of 19.8.

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