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http://dx.doi.org/10.4313/JKEM.2018.31.2.94

Phase Transition and Improvement of Output Efficiency of the PZT/PVDF Piezoelectric Device by Adding Carbon Nanotubes  

Lim, Youngtaek (Department of Electrical Engineering, Seoyeong University)
Lee, Sunwoo (Department of Electrical Information, Inha Technical College)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.31, no.2, 2018 , pp. 94-97 More about this Journal
Abstract
Lead zirconate titanate/poly-vinylidene fluoride (PZT/PVDF) piezoelectric devices were fabricated by incorporating carbon nanotubes (CNTs), for use as flexible energy harvesting devices. CNTs were added to maximize the formation of the ${\beta}$ phase of PVDF to enhance the piezoelectricity of the devices. The phase transition of PVDF induced by the addition of CNTs was confirmed by analyzing the X-ray diffraction patterns, scanning electron microscopy images, and atomic force microscopy images. The enhanced output efficiency of the PZT/PVDF piezoelectric devices was confirmed by measuring the output current and voltage of the fabricated devices. The maximum output current and voltage of the PZT/PVDF piezoelectric devices was 200 nA and 350 mV, respectively, upon incorporation of 0.06 wt% CNTs.
Keywords
PZT/PVDF piezoelectric device; CNT; Phase transition of PVDF; Output efficiency enhancement;
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