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Automatic light-adjusting electrochromic device powered by perovskite solar cell

Author

Listed:
  • Huan Ling

    (Southern University of Science and Technology)

  • Jianchang Wu

    (Southern University of Science and Technology)

  • Fengyu Su

    (Southern University of Science and Technology
    Southern University of Science and Technology
    Southern University of Science and Technology)

  • Yanqing Tian

    (Southern University of Science and Technology)

  • Yan Jun Liu

    (Southern University of Science and Technology)

Abstract

Electrochromic devices can modulate their light absorption under a small driving voltage, but the requirement for external electrical supplies causes response-lag. To address this problem, self-powered electrochromic devices have been studied recently. However, insensitivity to the surrounding light and unsatisfactory stability of electrochromic devices have hindered their critical applications. Herein, novel perovskite solar cell-powered all-in-one gel electrochromic devices have been assembled and studied in order to achieve automatic light adjustment. Two alkynyl-containing viologen derivatives are synthesized as electrochromic materials, the devices with very high stability (up to 70000 cycles) serves as the energy storage and smart window, while the perovskite solar cell with power-conversion-efficiency up to 18.3% serves as the light detector and power harvester. The combined devices can automatically switch between bleached and colored state to adjust light absorption with variable surrounding light intensity in real-time swiftly, which establish significant potentials for applications as modern all-day intelligent windows.

Suggested Citation

  • Huan Ling & Jianchang Wu & Fengyu Su & Yanqing Tian & Yan Jun Liu, 2021. "Automatic light-adjusting electrochromic device powered by perovskite solar cell," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21086-7
    DOI: 10.1038/s41467-021-21086-7
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    Cited by:

    1. Syrrokostas, George & Leftheriotis, George & Yannopoulos, Spyros N., 2022. "Lessons learned from 25 years of development of photoelectrochromic devices: A technical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 162(C).

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