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Issue 6, 2018
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Inversely polarised ferroelectric polymer contact electrodes for triboelectric-like generators from identical materials

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Abstract

Although it is known that triboelectric nanogenerators (TENGs) based on ferroelectric polymer films show better performance, the origin of this enhancement remains poorly understood. To date, it has been accepted that enhancement is observed due to shift of the “effective work function” of the ferroelectric polymer insulator, which in turn enhances electron transfer between the TENG electrodes. The present study reveals that this view is incorrect and, in reality, the enhancement is observed due to induction driven by piezoelectric charges. Furthermore a novel piezoelectric-electrostatic generator (PEEG) has been constructed from inversely polarised polyvinylidene films, which exhibits higher performance than TENGs for mechanical energy conversion to electricity.

Graphical abstract: Inversely polarised ferroelectric polymer contact electrodes for triboelectric-like generators from identical materials

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Supplementary files

Article information


Submitted
17 Feb 2018
Accepted
12 Apr 2018
First published
12 Apr 2018

Energy Environ. Sci., 2018,11, 1437-1443
Article type
Communication

Inversely polarised ferroelectric polymer contact electrodes for triboelectric-like generators from identical materials

A. Šutka, K. Mālnieks, A. Linarts, M. Timusk, V. Jurķāns, I. Gorņevs, J. Blūms, A. Bērziņa, U. Joost and M. Knite, Energy Environ. Sci., 2018, 11, 1437
DOI: 10.1039/C8EE00550H

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