"Flexible Hybrid Piezoelectric-Electrostatic Device for Energy Harvesti" by Zhaocheng Lu, Chi Zhang et al.
 

Flexible Hybrid Piezoelectric-Electrostatic Device for Energy Harvesting and Sensing Applications

Document Type

Article

Publication Date

3-15-2023

Abstract

Converting mechanical energy from either the ambient environment or the human body motions to the useful electrical energy will revolutionize power solutions for flexible electronics. Here, a hybrid energy harvesting strategy is reported, which combines porous polymeric piezoelectric film with an electrostatic layer as an integration for converting the mechanical energy into electrical energy. The piezoelectric materials through engineered microstructures are developed to enhance energy generation due to the higher compressibility and larger surface contact area. The electrostatic effect from the charged layer further contributes to the generation of electrical charges. By directly coating the stretchable carbon nanotubes onto the elastomers, more intimate integration of the hybrid energy harvesters enables the designs for complex electronics. Such flexible hybrid piezoelectric-electrostatic device exhibits superior energy harvesting performance with a voltage output of 1.95 V, which improves 30% and 100% compared to the electrostatic and piezoelectric alone device, respectively. Experiments are also performed to demonstrate the implementation of the hybrid device's energy conversion to power small electronics and recognition of different body motions. Such hybrid strategy provides a new solution toward future energy revolution for flexible electronics.

Identifier

85147384202 (Scopus)

Publication Title

Advanced Materials Interfaces

External Full Text Location

https://doi.org/10.1002/admi.202202173

e-ISSN

21967350

Issue

8

Volume

10

Grant

ECCS 2106459

Fund Ref

National Science Foundation

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