Enhanced piezoelectric performance of PVDF-based electrospun nanofibers by utilizing in situ synthesized graphene-ZnO nanocomposites

Autor: Mohammad Reza Ghahhari, Mahdi Hasanzadeh, S. M. Bidoki
Rok vydání: 2021
Předmět:
Zdroj: Journal of Materials Science: Materials in Electronics. 32:15789-15800
ISSN: 1573-482X
0957-4522
DOI: 10.1007/s10854-021-06132-w
Popis: In this study, the graphene-zinc oxide nanocomposite was synthesized by hydrothermal method and used in the preparation of electrospun poly(vinylidene fluoride) (PVDF) nanofibers. For this purpose, PVDF nanofibers containing graphene-ZnO nanocomposite (G-ZnO) were prepared and its microstructure and morphology were studied using infrared spectroscopy (FTIR), X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) techniques. The results showed the production of uniform and bead-free nanofibers. The decrease in PVDF nanofiber diameter (about 23%) was observed with addition of synthesized G-ZnO nanocomposite. It was also observed that the incorporation of G-ZnO nanocomposites increased the crystalline and polar β phase of the PVDF nanofibers and consequently its piezoelectric properties. The PVDF/G-ZnO nanofibrous composite exhibits a peak-to-peak voltage of 840 mV under an applied force of 1 N, which found to be superior than the pristine PVDF (640 mV) and PVDF/ZnO (710 mV) nanofibers. The results of this work provide new insight for the development of flexible piezoelectric nanofibrous devices and energy harvesting systems.
Databáze: OpenAIRE
Externí odkaz: