화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 에너지저장·변환_포스터
제목 Stable n-type thermoelectric multilayer thin films with high power Factor from carbonaceous nanofillers
초록 An alternate deposition of double walled-nanotube (DWNT)-dispersed in polyethyleneimine (PEI) and graphene-dispersed in polyvinylpyrrolidone (PVP) shows that the σ and S of 80 bilayer DWNT-PEI/graphene-PVP thin films (~ 320 nm in thickness) are very high (300 S/cm and -80 µV/K), and are air-stable over time. In this first ever investigation of the n-type TE behavior of an LbL-assembled film, the resulting nanocomposites exhibit a remarkable PF of 190 W/mK2 at room temperature, which is one of the highest values reported among organic n-type TE materials. The use of water-based LbL TE nanocoatings can be potentially very useful for novel TE generators for which efficient n-type materials are highly desirable.
저자 조충연
소속 원광대
키워드 thermoelectric; layer-by-layer; electrical conductivity
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