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Full-frame and high-contrast smart windows from halide-exchanged perovskites

Author

Listed:
  • You Liu

    (Nanjing Tech University (NanjingTech))

  • Jungan Wang

    (Nanjing Tech University (NanjingTech))

  • Fangfang Wang

    (Nanjing Tech University (NanjingTech))

  • Zhengchun Cheng

    (Nanjing Tech University (NanjingTech))

  • Yinyu Fang

    (Nanjing Tech University (NanjingTech))

  • Qing Chang

    (Nanjing Tech University (NanjingTech))

  • Jixin Zhu

    (Nanjing Tech University (NanjingTech))

  • Lin Wang

    (Nanjing Tech University (NanjingTech))

  • Jianpu Wang

    (Nanjing Tech University (NanjingTech))

  • Wei Huang

    (Nanjing University of Posts and Telecommunications
    Northwestern Polytechnical University (NPU))

  • Tianshi Qin

    (Nanjing Tech University (NanjingTech))

Abstract

Window glazing plays an essential role to modulate indoor light and heat transmission, which is a prospect to save the energy cost in buildings. The latest photovoltachromic technology has been regarded as one of the most ideal solutions, however, to achieve full-frame size (100% active area) and high-contrast ratio (>30% variable in visible wavelength) for smart window applicability is still a challenge. Here we report a photovoltachromic device combining full-transparent perovskite photovoltaic and ion-gel based electrochromic components in a vertical tandem architecture without any intermediated electrode. Most importantly, by accurately adjusting the halide-exchanging period, this photovoltachromic module can realize a high pristine transmittance up to 76%. Moreover, it possesses excellent colour-rendering index to 96, wide contrast ratio (>30%) on average visible transmittance (400-780 nm), and a self-adaptable transmittance adjustment and control indoor brightness and temperature automatically depending on different solar irradiances.

Suggested Citation

  • You Liu & Jungan Wang & Fangfang Wang & Zhengchun Cheng & Yinyu Fang & Qing Chang & Jixin Zhu & Lin Wang & Jianpu Wang & Wei Huang & Tianshi Qin, 2021. "Full-frame and high-contrast smart windows from halide-exchanged perovskites," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23701-z
    DOI: 10.1038/s41467-021-23701-z
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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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