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Nanomaterials 2016, 6(4), 67;

PMN-PT/PVDF Nanocomposite for High Output Nanogenerator Applications

State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
Author to whom correspondence should be addressed.
Academic Editors: Mo Song and Thomas Nann
Received: 2 February 2016 / Revised: 25 March 2016 / Accepted: 30 March 2016 / Published: 11 April 2016
(This article belongs to the Special Issue Multifunctional Polymer-Based Nanocomposites)
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The 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3(0.7PMN-0.3PT) nanorods were obtained via hydrothermal method with high yield (over 78%). Then, new piezoelectric nanocomposites based on (1−x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) nanorods were fabricated by dispersing the 0.7PMN-0.3PT nanorods into piezoelectric poly(vinylidene fluoride) (PVDF) polymer. The mechanical behaviors of the nanocomposites were investigated. The voltage and current generation of PMN-PT/PVDF nanocomposites were also measured. The results showed that the tensile strength, yield strength, and Young’s modulus of nanocomposites were enhanced as compared to that of the pure PVDF. The largest Young’s modulus of 1.71 GPa was found in the samples with 20 wt % nanorod content. The maximum output voltage of 10.3 V and output current of 46 nA were obtained in the samples with 20 wt % nanorod content, which was able to provide a 13-fold larger output voltage and a 4.5-fold larger output current than that of pure PVDF piezoelectric polymer. The current density of PMN-PT/PVDF nanocomposites is 20 nA/cm2. The PMN-PT/PVDF nanocomposites exhibited great potential for flexible self-powered sensing applications. View Full-Text
Keywords: (1−x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT); poly(vinylidene fluoride) (PVDF); piezoelectric; nanocomposites; tape-casting; flexible; nanogenerator (1−x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT); poly(vinylidene fluoride) (PVDF); piezoelectric; nanocomposites; tape-casting; flexible; nanogenerator

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Li, C.; Luo, W.; Liu, X.; Xu, D.; He, K. PMN-PT/PVDF Nanocomposite for High Output Nanogenerator Applications. Nanomaterials 2016, 6, 67.

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