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논문 기본 정보

자료유형
학술저널
저자정보
Yefeng Feng (Yangtze Normal University) Jianxiong Zhang (Yangtze Normal University) Jianbing Hu (Yangtze Normal University) Shichun Li (Yangtze Normal University) Cheng Peng (Yangtze Normal University)
저널정보
대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.14 No.2
발행연도
2018.1
수록면
187 - 197 (11page)

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초록· 키워드

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Interface induced polarization has a prominent influence on dielectric properties of 0–3 type polymer based composites containingSi-based semi-conductors. The disadvantages of composites were higher dielectric loss, lower breakdown strength andenergy storage density, although higher permittivity was achieved. In this work, dielectric, conductive, breakdown and energystorage properties of four nano-composites have been researched. Based on the cooperation of fluoropolymer/alpha-SiC layerand fluoropolymer/hexagonal-BN layer, it was confirmed constructing the heterogeneous layer-by-layer composite structurerather than homogeneous mono-layer structure could significantly reduce dielectric loss, promote breakdown strength andincrease energy storage density. The former worked for a larger dielectric response and the latter layer acted as a robust barrierof charge carrier transfer. The best nano-composite could possess a permittivity of 43@100 Hz (~ 3.3 times of polymer),loss of 0.07@100 Hz (~ 37% of polymer), discharged energy density of 2.23 J/cm3@249 kV/cm (~ 10 times of polymer)and discharged energy efficiency of 54%@249 kV/cm (~ 5 times of polymer). This work might enlighten a facile route toachieve the promising high energy storage composite dielectrics by constructing the layer-by-layer topological structure.

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