화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 분자전자 부문위원회 Ⅰ,Ⅱ
제목 Actively Operable Thermoresponsive Smart Windows for Reducing Energy Consumption
초록 Smart windows, which modulate thermal energy transferred from the incident sunlight, have attracted tremendous interest as an alternative technology for resolving the energy crisis by suppressing unnecessary energy usage such as air conditioning or heating inside buildings. Here, we demonstrate a set of materials and design concepts for doubly responsive smart windows, which reduce the energy consumption. The proposed smart window is based on the low critical solution temperature of thermoresponsive polymer hydrogels and the electrical actuation of graphene flexible heaters. It exhibited a transparency of above 90%, which corresponds to an almost instantaneous change from high transmission of the incident light to the complete blockage of its penetration under thermal or electrical stimulation. In particular, when the windows of a mockup house are replaced with the developed flexible smart windows, the increment rate of the indoor temperature under white light irradiation reduces.
저자 호동해1, 강성경2, 이창환2, 임호선3, 조정호1
소속 1연세대, 2숭실대, 3숙명여자대
키워드 smart window; lower critical solution temperature; thermo-responsive; energy efficiency; transmittance
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