Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 11, Issue 6, Pages 1425-1430Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ee00014j
Keywords
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Funding
- KOREA RESEARCH INSTITUTE of CHEMICAL TECHNOLOGY (KRICT) [SI1802]
- Global Research Laboratory Program of the National Research Foundation (NRF) - Ministry of Science, Information and Communication Technologies and Future Planning [NRF-2015K1A1A2029679]
- National Research Council of Science & Technology (NST), Republic of Korea [SI1802] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2015K1A1A2029679] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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 lA 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 selfpowered systems.
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