Highly oriented BaTiO3 film self-assembled using an interfacial strategy and its application as a flexible piezoelectric generator for wind energy harvesting

Tao Gao; Jianjun Liao; Jianshu Wang; Yingqiang Qiu; Quan Yang; Min Zhang; Yang Zhao; Lifeng Qin; Hao Xue; Zhaoxian Xiong; Lifu Chen; Qing-ming Wang

doi:10.1039/C5TA01079A

Highly oriented BaTiO₃ film self-assembled using an interfacial strategy and its application as a flexible piezoelectric generator for wind energy harvesting†

Tao Gao,^a Jianjun Liao,^a Jianshu Wang,^a Yingqiang Qiu,^a Quan Yang,^a Min Zhang,^a Yang Zhao,^c Lifeng Qin,^c Hao Xue,*^ab Zhaoxian Xiong,^ab Lifu Chen^a and Qing-ming Wang*^d

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* Corresponding authors

^a Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, China
E-mail: xuehao@xmu.edu.cn

^b Key Laboratory of Electronic Ceramic Materials and Components (Xiamen University), Xiamen City, China

^c Department of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, China

^d Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, USA
E-mail: qiw4@pitt.edu

Abstract

A high output flexible piezoelectric generator based on a highly oriented BaTiO₃ film self-assembled using an interfacial strategy is reported. We have successfully controlled the morphology and orientation of BaTiO₃ particles and obtained a BaTiO₃ film using a facile interfacial self-assembled method. The BaTiO₃ film is transferred onto an ITO coated PET substrate and packaged with PDMS (polydimethylsiloxane) to form a flexible piezoelectric energy harvesting device. The interfacial assembling strategy can effectively increase the volume fraction of active piezoelectric materials in composite films. The BaTiO₃ film-based piezoelectric generator was demonstrated to harvest wind energy by employing a windmill and the output power was large enough to light a LCD.

Journal of Materials Chemistry A

Highly oriented BaTiO₃ film self-assembled using an interfacial strategy and its application as a flexible piezoelectric generator for wind energy harvesting†

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Highly oriented BaTiO₃ film self-assembled using an interfacial strategy and its application as a flexible piezoelectric generator for wind energy harvesting

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Journal of Materials Chemistry A