| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ |
| 제목 |
Effective Strategy for Ultra-Low Power Electrochromic Heat Shutters with Diffusion-controlled Behaviors |
| 초록 |
In this work, we propose low-power consumption, all-in-one type electrochromic devices (ECDs) for effective heat shutters. Considering diffusion-controlled device operation, polymeric viologens (poly-viologens) are synthesized to lower the diffusivity of EC chromophores and to minimize self-bleaching. In comparison with devices based on mono-viologens corresponding to the monomer of poly-viologens, poly-viologen-containing ECDs exhibit advantages of lower coloration voltage and higher coloration/bleaching cyclic stability (＞ 90,000 s). In particular, poly-viologen ECDs show remarkably reduced self-bleaching with an extremely low-power consumption (~8.26 μW/cm2) to maintain the colored state. Moreover, we successfully demonstrate solar heat shutters that suppress the increment of indoor temperature by taking advantage of NIR absorption of the colored ECDs. |
| 저자 |
인예령1, 김용민1, 이유정2, 김세현2, 이승우2, 문홍철1
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| 소속 |
1서울시립대, 2영남대 |
| 키워드 |
polymer viologens; diffusion-controlled electrochemical devices; heat shutters; ion gels; electrochromism
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| E-Mail |
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