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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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Publication details

The article was received on 17 Feb 2018, accepted on 12 Apr 2018 and first published on 12 Apr 2018


Article type: Communication
DOI: 10.1039/C8EE00550H
Citation: Energy Environ. Sci., 2018,11, 1437-1443
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    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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