Adaptive solar control smart window films comprising thermo-responsive hydrogels
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초록
내용
Smart windows powered by thermal energy can save electric energy by controlling indoor solar penetration with the adaptive modulation of optical transparency. Even though traditional glass-based smart windows have been extensively studied, it is difficult to manufacture the curved or flexible glazings. In this study, we developed film-type smart windows, which is achieved by using the thermosensitive hydrogel and transparent PET film. The thermosensitive hydrogel precursor was injected in the space between the PET films, and the optical transition from transparent to opaque state can be induced by the phase transition of the thermosensitive hydrogels. It would be promising that the developed smart window film can be easily installed on the existing window by attaching on the glass.