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Embedding variable micro-capacitors in polydimethylsiloxane for enhancing output power of triboelectric nanogenerator
Xia, Xiaona1; Chen, Jie1; Guo, Hengyu1; Liu, Guanlin1; Wei, Dapeng2; Xi, Yi1; Wang, Xue1; Hu, Chenguo1
2017
摘要Polydimethylsiloxane (PDMS) is an excellent material for investigating the mechanism of triboelectricity as it can easily be used to construct various microstructures. In this study, micro-capacitors (MCs) and variable microcapacitors (VMCs) were embedded in PDMS by filling PDMS with silver nanoparticles (NPs) and constructing an internal cellular structure. The output performance of the triboelectric nanogenerators (TENGs) based on MCs@PDMS and VMCs@PDMS films was systematically investigated, with variation of the filling content of silver NPs and the pore ratio and size. The microstructure, permittivity, dielectric loss, and capacitance of the VMCs@PDMS films were well characterized. The output current of the TENG based on the VMCs@PDMS film was respectively 4.0 and 1.6 times higher than that of the TENGs based on the pure PDMS film and MCs@PDMS film, and the output power density of the former reached 6 W center dot m(-2). This study sheds light on the physical nature of conductive nanoparticle fillings and cellular structures in dielectric triboelectric polymers.
关键词cellular structure polydimethylsiloxane silver nanoparticles variable micro-capacitor
DOI10.1007/s12274-016-1294-4
发表期刊NANO RESEARCH
ISSN1998-0124
卷号10期号:1页码:320-330
通讯作者Wang, X ; Hu, CG (reprint author), Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China.
收录类别SCI
WOS记录号WOS:000390066000028
语种英语