Warm/cool-tone switchable thermochromic material for smart windows by orthogonally integrating properties of pillar[6]arene and ferrocene

Sai Wang, Zuqiang Xu, Tingting Wang, Tangxin Xiao, Xiao-Yu Hu (), Ying-Zhong Shen () and Leyong Wang ()
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Sai Wang: Nanjing University of Aeronautics & Astronautics
Zuqiang Xu: Nanjing University
Tingting Wang: Nanjing University
Tangxin Xiao: Changzhou University
Xiao-Yu Hu: Nanjing University
Ying-Zhong Shen: Nanjing University of Aeronautics & Astronautics
Leyong Wang: Nanjing University

Nature Communications, 2018, vol. 9, issue 1, 1-9

Abstract: Abstract Functional materials play a vital role in the fabrication of smart windows, which can provide a more comfortable indoor environment for humans to enjoy a better lifestyle. Traditional materials for smart windows tend to possess only a single functionality with the purpose of regulating the input of solar energy. However, different color tones also have great influences on human emotions. Herein, a strategy for orthogonal integration of different properties is proposed, namely the thermo-responsiveness of ethylene glycol-modified pillar[6]arene (EGP6) and the redox-induced reversible color switching of ferrocene/ferrocenium groups are orthogonally integrated into one system. This gives rise to a material with cooperative and non-interfering dual functions, featuring both thermochromism and warm/cool tone-switchability. Consequently, the obtained bifunctional material for fabricating smart windows can not only regulate the input of solar energy but also can provide a more comfortable color tone to improve the feelings and emotions of people in indoor environments.

Date: 2018
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DOI: 10.1038/s41467-018-03827-3

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