All-weather thermochromic windows for synchronous solar and thermal radiation regulation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

7 Scopus Citations
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Author(s)

  • Chongjia Lin
  • Jun Hur
  • Christopher Y. H. Chao
  • Gongze Liu
  • Shuhuai Yao
  • Baoling Huang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article numbereabn7359
Journal / PublicationScience Advances
Volume8
Issue number17
Online published29 Apr 2022
Publication statusPublished - 29 Apr 2022

Link(s)

Abstract

Adaptive control of solar and thermal radiation through windows is of pivotal importance for building energy saving. However, such synchronous passive regulations are challenging to be integrated into one thermochromic window. Here, we develop a solar and thermal regulatory (STR) window by integrating poly(N-isopropylacrylamide) (pNIPAm) and silver nanowires (AgNWs) into pNIPAm/AgNW composites. A hitherto unexplored mechanism, originating from the temperature-triggered water capture and release due to pNIPAm phase transition, is exploited to achieve simultaneous regulations of solar transmission and thermal emission. The STR window shows excellent solar modulation (58.4%) and thermal modulation (57.1%) and demonstrates effective regulation of indoor temperatures during both daytime and nighttime. Compared to other thermochromic technologies, the STR window reduces heat loss in cold environment while promotes heat dissipation in hot conditions, achieving efficient energy saving in all weathers. This dual solar and thermal regulation mechanism may provide unidentified insights into the advancement of smart window technology.

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Citation Format(s)

All-weather thermochromic windows for synchronous solar and thermal radiation regulation. / Lin, Chongjia; Hur, Jun; Chao, Christopher Y. H.; Liu, Gongze; Yao, Shuhuai; Li, Weihong; Huang, Baoling.

In: Science Advances, Vol. 8, No. 17, eabn7359, 29.04.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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