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Towards full-colour tunability of inorganic electrochromic devices using ultracompact fabry-perot nanocavities

Author

Listed:
  • Zhen Wang

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

  • Xiaoyu Wang

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

  • Shan Cong

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

  • Jian Chen

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

  • Hongzhao Sun

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

  • Zhigang Chen

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

  • Ge Song

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

  • Fengxia Geng

    (Soochow University)

  • Qin Chen

    (Jinan University)

  • Zhigang Zhao

    (Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS))

Abstract

Intercalation-based inorganic materials that change their colours upon ion insertion/extraction lay an important foundation for existing electrochromic technology. However, using only such inorganic electrochromic materials, it is very difficult to achieve the utmost goal of full-colour tunability for future electrochromic technology mainly due to the absence of structural flexibility. Herein, we demonstrate an ultracompact asymmetric Fabry-Perot (F-P) nanocavity-type electrochromic device formed by using partially reflective metal tungsten as the current collector and reflector layer simultaneously; this approach enables fairly close matching of the reflections at both interfaces of the WO3 thin layer in device form, inducing a strong interference. Such an interference-enhanced device that is optically manipulated at the nanoscale displays various structural colours before coloration and, further, can change to other colours including blue, red, and yellow by changing the optical indexes (n, k) of the tungsten oxide layer through ion insertion.

Suggested Citation

  • Zhen Wang & Xiaoyu Wang & Shan Cong & Jian Chen & Hongzhao Sun & Zhigang Chen & Ge Song & Fengxia Geng & Qin Chen & Zhigang Zhao, 2020. "Towards full-colour tunability of inorganic electrochromic devices using ultracompact fabry-perot nanocavities," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-14194-y
    DOI: 10.1038/s41467-019-14194-y
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    Cited by:

    1. Cheon Woo Moon & Youngji Kim & Jerome Kartham Hyun, 2022. "Active electrochemical high-contrast gratings as on/off switchable and color tunable pixels," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Yuyin Xi & Fan Zhang & Yuanchi Ma & Vivek M. Prabhu & Yun Liu, 2022. "Finely tunable dynamical coloration using bicontinuous micrometer-domains," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    3. Haomin Chen & Gunho Chang & Tae Hee Lee & Seokhwan Min & Sanghyeon Nam & Donghwi Cho & Kwonhwan Ko & Gwangmin Bae & Yoonseong Lee & Jirou Feng & Heng Zhang & Jang-Kyo Kim & Jonghwa Shin & Jung-Wuk Hon, 2024. "Compression-sensitive smart windows: inclined pores for dynamic transparency changes," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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