Bio‐Inspired, Scalable, and Tri‐Mode Stimuli‐Chromic Composite for Smart Window Multifunctionality

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Bio‐Inspired, Scalable, and Tri‐Mode Stimuli‐Chromic Composite for Smart Window Multifunctionality
Title:
Bio‐Inspired, Scalable, and Tri‐Mode Stimuli‐Chromic Composite for Smart Window Multifunctionality
Journal Title:
Advanced Functional Materials
Publication Date:
01 September 2023
Citation:
Ke, Y., Li, N., Liu, Y., Zhu, T., Wang, S., Li, Y., Lin, G., Zhang, Q., Hu, Y., Dong, Z., Yin, J., Liu, Z., & Long, Y. (2023). Bio‐Inspired, Scalable, and Tri‐Mode Stimuli‐Chromic Composite for Smart Window Multifunctionality. Advanced Functional Materials, 33(46). Portico. https://doi.org/10.1002/adfm.202305998
Abstract:
AbstractSmart window is promising to save building energy and reduce carbon emissions. The fast development leads to a high demand for multifunctionality not limited to energy saving, while the material design and fabrication are challenging. Herein, a scalable method is developed for tri‐mode light regulations: thermo‐, mechano‐, and hydro‐/solvato‐chromisms. The film is constructed of a bio‐inspired hierarchical‐structured surface and a functional elastomer base. Through combined experiments and simulations, the triple‐stimuli‐chromic mechanisms of strain‐induced surface structure deformations, wettability‐controlled reflective index matches, and thermal‐responsive nanostructural resonances, respectively are revealed. Besides a good energy‐saving performance, the robust method shows several advantages: 1) independent energy‐saving and privacy functionalities, 2) an additional hydro‐/solvato‐chromic mode to control privacy in extreme circumstances, and 3) designable patterns and colors to meet high aesthetic demand. The work may inspire the future development of multifunctional smart windows and spatio‐temporal light control methods.
License type:
Attribution 4.0 International (CC BY 4.0)
Funding Info:
This research / project is supported by the A*STAR - CDA
Grant Reference no. : C210112014

This research / project is supported by the SERC Central Research Fund - CRF, UIBR
Grant Reference no. : KIMR220901aSERCRF
Description:
ISSN:
1616-3028
1616-301X
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