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Deviceization of high-performance and flexible Ag2Se films for electronic skin and servo rotation angle control

Author

Listed:
  • Yue-Xing Chen

    (Shenzhen)

  • Xiao-Lei Shi

    (Queensland University of Technology)

  • Jun-Ze Zhang

    (Shenzhen)

  • Mohammad Nisar

    (Shenzhen)

  • Zhong-Zhao Zha

    (Shenzhen)

  • Zi-Nan Zhong

    (Shenzhen)

  • Fu Li

    (Shenzhen)

  • Guang-Xing Liang

    (Shenzhen)

  • Jing-Ting Luo

    (Shenzhen)

  • Meng Li

    (Queensland University of Technology)

  • Tianyi Cao

    (Queensland University of Technology)

  • Wei-Di Liu

    (Queensland University of Technology)

  • Dong-Yan Xu

    (The Chinese University of Hong Kong)

  • Zhuang-Hao Zheng

    (Shenzhen)

  • Zhi-Gang Chen

    (Queensland University of Technology)

Abstract

Ag2Se shows significant potential for near-room-temperature thermoelectric applications, but its performance and device design are still evolving. In this work, we design a novel flexible Ag2Se thin-film-based thermoelectric device with optimized electrode materials and structure, achieving a high output power density of over 65 W m−2 and a normalized power density up to 3.68 μW cm−2 K−2 at a temperature difference of 42 K. By fine-tuning vapor selenization time, we strengthen the (013) orientation and carrier mobility of Ag2Se films, reducing excessive Ag interstitials and achieving a power factor of over 29 μW cm−1 K−2 at 393 K. A protective layer boosts flexibility of the thin film, retaining 90% performance after 1000 bends at 60°. Coupled with p-type Sb2Te3 thin films and rational simulations, the device shows rapid human motion response and precise servo motor control, highlighting the potential of high-performance Ag2Se thin films in advanced applications.

Suggested Citation

  • Yue-Xing Chen & Xiao-Lei Shi & Jun-Ze Zhang & Mohammad Nisar & Zhong-Zhao Zha & Zi-Nan Zhong & Fu Li & Guang-Xing Liang & Jing-Ting Luo & Meng Li & Tianyi Cao & Wei-Di Liu & Dong-Yan Xu & Zhuang-Hao Z, 2024. "Deviceization of high-performance and flexible Ag2Se films for electronic skin and servo rotation angle control," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-52680-0
    DOI: 10.1038/s41467-024-52680-0
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    References listed on IDEAS

    as
    1. Yufei Ding & Yang Qiu & Kefeng Cai & Qin Yao & Song Chen & Lidong Chen & Jiaqing He, 2019. "High performance n-type Ag2Se film on nylon membrane for flexible thermoelectric power generator," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
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