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http://dx.doi.org/10.4313/JKEM.2016.29.11.712

Formation of β-phase PVDF by Introduction of CNTs in the CNT/PVDF Composite Film and Resulting Improvement of Piezoelectric Performance  

Lim, Young-Taek (School of Electrical Engineering, Inha University)
Lee, Sunwoo (Department of Electrical Information, Inha Technical College)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.29, no.11, 2016 , pp. 712-715 More about this Journal
Abstract
In this paper, we fabricated flexible CNT/PVDF piezoelectric composite device by introducing CNTs (carbon nanotubes) into PVDF (poly-vinylidene fluoride) solution using spray coating technique. Flexible PEDOT:PSS conducting polymer was used as electrodes. We tried to improve the piezoelectric performance from the CNT/PVDF composite film by increasing the portion of the ${\beta}$-phase PVDF in the film. We confirmed the structural conformation of the CNT/PVDF composite film as a function of CNT concentration by using FT-IR (fourier transform infra-red). As increasing CNT concentration, portion of the ${\beta}$-phase PVDF and resulting piezoelectric performance increased in the CNT/PVDF composite film. We found that CNTs introduced were played as seeds for formation of the ${\beta}$-phase PVDF in the CNT/PVDF composite film and resulting improvement of the piezoelectric performance.
Keywords
Formation of the ${\beta}$-phase PVDF; CNTs introduced as seeds; Improvement of piezoelectric performance;
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