Nano Generator Intended for Energy Harvesting
Asian Journal of Applied Science and Technology (AJAST), Volume 1, Issue 9, Pages 88-91, October 2017
4 Pages Posted: 20 Oct 2017
Date Written: August 4, 2017
In this era, immense energy crisis is a core problem. At those places with frequent power outage, gasoline motor generators are used as a solution. Production of more energy using renewable energy resources such as solar energy, wind energy, or hydropower is preferred, but it has limited use and is dependent on weather and topography. As an alternate resource of energy, Nano Generators can be used. Nano generators convert mechanical/thermal energy produced by small-scale physical change into electricity. Harvesting vibration energy from walking, voices, engine vibration, automobile, train, aircraft, wind and many more can be used for powering mobile electronics. Zinc oxide is a unique material that exhibits semiconducting and piezoelectric properties. Nanowire arrays of ZnO can be grown on flexible plastic substrates to form nano-generator. The nano-generator converts random mechanical energy into electric energy using piezoelectric zinc oxide nano wire arrays. The advantage of using nano wires is that tiny physical motions can trigger them and the excitation frequency can be 1Hz to 1000Hz, which is ideal for harvesting random energy in the environment. The voltage generated from a single Nanowire can be as high as 50mV, which is large enough to power many nano-scale devices.
Keywords: Piezoelectric, Nano-Generator, Energy Harvesting, ZnO and Nano Wires
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