화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 분자전자 부문위원회 II
제목 Efficient Preparation Method of 3D Carbon Nanotube Foam for Freely Shapable and Flexible Thermoelectric Power Generators
초록 In this study, a porous CNT foam with a 3D network is simply prepared via a rapid solvent evaporation method using a properly selected solvent for a flexible TE application. The prepared CNT foam with numerous pores and high bulk thickness exhibits a low thermal conductivity and is stably processed into various shapes without a significant decrease in Seebeck coefficient. Furthermore, these CNT foams are easily doped into p- and n-type via a simple doping process for a practical TE generator. A flexible TE generator composed of 8 p–n pairs is successfully fabricated without any collapses in the CNT foam and this generator also exhibits a significant temperature difference between the hot and cold sides owing to decreased thermal conductivity. Our approach demonstrates that the use of bulk and porous CNT foam allows the fabrication of a vertical and flexible TE generator with various shapes with high TE output power.
저자 이민혜, 강영훈, 김정원, 이영국, 조성윤
소속 한국화학(연)
키워드 low thermal conductivity; porous structure; triple point; thermoelectric
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