Optimal Aspect Ratio of Zinc Oxide Nanowires for a Nanocomposite Electrical Generator
A nanocomposite electrical generator composed of Zinc oxide nanowires (ZnO NWs) was modeled using continuum mechanics and Maxwell's equations. Axial loading was considered and the optimum aspect ratio of ZnO NWs for getting to maximum electric potential was calculated. The bonding between
the ZnO NWs and the polymer matrix was considered to be perfect and the linear piezoelectric behavior was assumed. It was shown that the electric potential has maximum and minimum values of opposite signs at the extreme ends along the nanowire length. The maximum generated electric potential
varies from 0.01717 for a NW with an aspect ratio of one to 0.61107 for a NW with an aspect ratio of thirty. The optimum aspect ratio of ZnO NW was defined as the difference between the maximum generated electric potential at which the difference becomes less than 1%, which results in an aspect
ratio of 16. The results are a major step toward producing ZnO NWs for nanocomposite electrical generators with maximum performance.
Keywords: NANOCOMPOSITE ELECTRICAL GENERATORS; PIEZOELECTRICITY; ZINC OXIDE NANOWIRE
Document Type: Research Article
Publication date: October 1, 2012
- Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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