Bio-inspired micropatterned thermochromic hydrogel for concurrent smart solar transmission and rapid visible-light stealth at all-working temperatures

Huaxu Liang; Xinping Zhang; Fuqiang Wang; Chunzhe Li; Weizhe Yuan; Weifeng Meng; Ziming Cheng; Yan Dong; Xuhang Shi; Yuying Yan; Hongliang Yi; Yong Shuai; Yi Long

doi:10.1038/s41377-024-01525-y

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Bio-inspired micropatterned thermochromic hydrogel for concurrent smart solar transmission and rapid visible-light stealth at all-working temperatures

Original Articles

- Bio-inspired micropatterned thermochromic hydrogel for concurrent smart solar transmission and rapid visible-light stealth at all-working temperatures
- Light: Science & Applications Vol. 13, Issue 10, Pages: 2201-2211(2024)
- Affiliations：
  
  1.School of Energy Science and Engineering, Harbin Institute of Technology, 92 West Dazhi Street, Harbin 150001, China
  2.School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
  3.Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
  4.Department of Environmental Engineering, Technical University of Denmark, Miljøvej 113, Kgs, Lyngby 2800, Denmark
  5.Department of Electronic Engineering, the Chinese University of Hong Kong, New Territories, Hong Kong SAR, China
- Author bio：
  
  Fuqiang Wang (Wangfuqiang@hitwh.edu.cn)
  Yi Long (yilong@cuhk.edu.hk)
- Funds：
- DOI：10.1038/s41377-024-01525-y
  CLC：
- Received：26 October 2023，
  
  Revised：13 June 2024，
  
  Accepted：2024-07-10，
  
  Published Online：21 August 2024，
  
  Published：31 October 2024
- Accepted：
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Liang, H. X. et al. Bio-inspired micropatterned thermochromic hydrogel for concurrent smart solar transmission and rapid visible-light stealth at all-working temperatures. Light: Science & Applications, 13, 2201-2211 (2024).
DOI：

Liang, H. X. et al. Bio-inspired micropatterned thermochromic hydrogel for concurrent smart solar transmission and rapid visible-light stealth at all-working temperatures. Light: Science & Applications, 13, 2201-2211 (2024). DOI： 10.1038/s41377-024-01525-y.

摘要

Abstract

Thermochromic hydrogels exhibit a smart capacity for regulating solar spectrum transmission

enabling automatically change their transmissivity in response to the ambient temperature change. This has great importance for energy conservation purposes. Military and civilian emergency thermochromic applications require rapid visible-light stealth (VLS); however

concurrent smart solar transmission and rapid VLS is yet to be realized. Inspired by squid-skin

we propose a micropatterned thermochromic hydrogel (MTH) to realize the concurrent control of smart solar transmittance and rapid VLS at all-working temperatures. The MTH possesses two optical regulation mechanisms: optical property regulation and optical scattering

controlled by temperature and pressure

respectively. The introduced surface micropattern strategy can arbitrarily switch between normal and diffuse transmission

and the VLS response time is within 1 s compared with previous ~180 s. The MTH also has a high solar-transmission regulation range of 61%. Further

the MTH preparation method is scalable and cost-effective. This novel regulation mechanism opens a new pathway towards applications with multifunctional optical requirements.

关键词

Keywords

references

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