Significant enhancement in energy density of polymer composites induced by dopamine-modified Ba0.6Sr0.4TiO3 nanofibers
Significant enhancement in energy density of polymer composites induced by dopamine-modified Ba0.6Sr0.4TiO3 nanofibers
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多巴胺改性 Ba0.6Sr0.4TiO3 纳米纤维显着提高聚合物复合材料的能量密度
DOI：
10.1063/1.4760228
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发表时间：
2012-10-08
影响因子：
4
通讯作者：
Nan, C. W.
中科院分区：
文献类型：
--
作者：
Song, Yu;Shen, Yang;Nan, C. W.
Ba0.6Sr0.4TiO3 (BST) nanofibers prepared via electrospinning and modified by dopamine are used as dielectric fillers in polyvinylidene fluoride (PVDF)-based composites. With 4.4 vol. % of BST nanofibers, the extractable energy density of the BST/PVDF composites is more than doubled as compared with pure PVDF matrix. Such significant enhancement is attributed to the combined effect of both surface modification by dopamine and large aspect ratio of the BST nanofibers. Paraelectric or anti-ferroelectric fillers of large aspect ratio may serve as a general strategy for enhanced electric energy density in polymer composites.
