American Journal of Applied Sciences

Simple Fabrication and Characterization of Piezoelectric Nanogenerators from Cobalt-Doped Zinc Oxide Nanofibers

Suyitno, Syamsul Hadi, Mohd Zainizan Sahdan, Nafarizal Nayan, Hashim Saim, Lukman Nulhakim and Agung Tri Wijayanta

DOI : 10.3844/ajassp.2017.662.669

American Journal of Applied Sciences

Volume 14, Issue 7

Pages 662-669

Abstract

The ferromagnetic cobalt doped into Zinc Oxide (ZnO) crystals is a promising method for enhancing the performance of Piezoelectric-Based Nano Generators (PENGs). The study reports the characterization and testing PENGs which simply fabricated from cobalt-doped ZnO nanofibers (NFs) synthesized by electro spinning machine. The electro spinning processes were conducted at a flow rate of 4 μL/min and at various cobalt concentrations followed by sintering at a temperature of 500°C. The X-Ray Diffraction (XRD) spectra demonstrate that the crystalline diameter of Co-doped ZnO NFs increased as the content of cobalt increased, up to a concentration of 9%. Meanwhile, the maximum output voltage and power density of PENGs with Co-doped ZnO NFs were 221.6 mV and 148.8 nW/cm2, respectively when the PENGs were subjected to a cyclic mechanical load of 0.5 kg. Therefore, PENGs fabricated from Co-doped ZnO NFs are challenging for the next generation of self-powered devices.

Copyright

© 2017 Suyitno, Syamsul Hadi, Mohd Zainizan Sahdan, Nafarizal Nayan, Hashim Saim, Lukman Nulhakim and Agung Tri Wijayanta . This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.