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High-performance piezoelectric nanogenerators based on chemically-reinforced composites

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Abstract

High-performance flexible piezoelectric nanogenerators (PNGs) based on composite thin films comprising amine-functionalized lead zirconate titanate (PZT) nanoparticles (PZT-NH2 NPs) and a thermoplastic triblock copolymer grafted with maleic anhydride are fabricated. The chemically reinforced composite contains a stable dispersion of PZT NPs within the polymer matrix with enhanced stress applied to the PZT NPs. Without additional dispersants, the uniform distribution of PZT-NH2 NPs in the polymer composite improves the piezoelectric power generation compared to that of a PNG device using pristine PZT NPs. This unique composite behavior allows the PZT-NH2 NP-based flexible PNG to exhibit a high output voltage of 65 V and current of 1.6 μA without time-dependent degradation. This alternating energy from the PNG can be used to charge a capacitor and operate light-emitting diodes through a full bridge rectifier. Furthermore, the proposed PNG is demonstrated as a promising energy harvester for potential applications in self-powered systems.

Graphical abstract: High-performance piezoelectric nanogenerators based on chemically-reinforced composites

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Publication details

The article was received on 03 Jan 2018, accepted on 06 Mar 2018 and first published on 13 Mar 2018


Article type: Communication
DOI: 10.1039/C8EE00014J
Citation: Energy Environ. Sci., 2018, Advance Article
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    High-performance piezoelectric nanogenerators based on chemically-reinforced composites

    E. J. Lee, T. Y. Kim, S. Kim, S. Jeong, Y. Choi and S. Y. Lee, Energy Environ. Sci., 2018, Advance Article , DOI: 10.1039/C8EE00014J

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