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Novel Electrode for Tapping Energy Generated Using Piezotronic Nanocrystals

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The key issue in piezoelectric energy harvesting is the design of an electrode that could contact the piezogenerating nanowires at the tips during bending and transfer the generated piezo energy to the macro world to be used as battery replacements or for self-powered devices. A zig-zag electrode of platinum coated Si made using lithographic techniques had been reported, which had the disadvantage of being very hard on its surface leading to breaking of the piezogenerating nanowires. A novel low cost technique that uses anodized aluminum oxide as template for fabricating a zig-zag metal structure to work as the electrode of piezoelectric energy harvesting devices is reported in this work. These structures are soft and elastic, and hence do not pose a threat to the lifetime of the energy harvester. A cost effective method for designing and packaging of the nano energy-generator has also been proposed. The energy generated can be easily transferred to the macro world, rendering it useful in the practical fields of self-powered technologies. Voltage measurements carried out using such an electrode for piezoelectric energy harvesting are reported.
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Keywords: ANODIZATION; ENERGY HARVESTING; PIEZOELECTRIC; TEMPLATE; ZIG-ZAG ELECTRODE; ZINC OXIDE

Document Type: Research Article

Publication date: October 1, 2016

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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