Piezoelectric Harvesting Characteristics of BaTiO3 Microstructures for Optimal Nanogenerators

Wen Yang Chang; Cheng Han Yang

doi:10.4028/www.scientific.net/AMR.747.205

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 747Piezoelectric Harvesting Characteristics of BaTiO3...

Piezoelectric Harvesting Characteristics of BaTiO₃ Microstructures for Optimal Nanogenerators

Abstract:

The study investigates piezoelectric harvesting efficiency of BTO microstructures with different structural configurations for electromechanical nanogenerators using FEM simulation. The effects of different BTO structures in same cross-section area are simulated, including the lengths, the heights, array numbers, shapes and harmonic response. The results show that a single-bulk structure of piezoelectric BTO produces less harvesting energy than an array structure in same cross-section area. The harvesting voltages increase with array number increasing. However, the energy harvesting obviously decreases when the array number is over 33. There has lager energy harvesting with a small ratio (R_h) that defined a diameter of BTO cylinder devided by a height of BTO cylinder. In addition, the piezoelectric harvesting based on BTO arrays with a zigzag layer has higher harvesting efficiency.

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Periodical:

Advanced Materials Research (Volume 747)

Pages:

205-209

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.747.205

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Online since:

August 2013

Authors:

Wen Yang Chang, Cheng Han Yang

Keywords:

BTO, Electromechanical, Harvesting, Piezoelectric, Simulation

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