A flexible self-poled piezocomposite nanogenerator based on H(ZrTi)O nanowires and polylactic acid biopolymer

The field of piezoelectric nanogenerators is rapidly growing as a promising technology for driving low-power portable devices and self-powered electronic systems by converting wasted mechanical energy into electric energy. In this study, we designed a flexible and self-poled piezocomposite nanogener...

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Published in:Sustainable energy & fuels 2022-04, Vol.6 (8), p.1983-1991
Main Authors: Hanani, Zouhair, Izanzar, Ilyasse, Merselmiz, Soukaina, El Assimi, Taha, Mezzane, Daoud, Amjoud, M'barek, Urši, Hana, Prah, Uroš, Ghanbaja, Jaafar, Saadoune, Ismael, Lahcini, Mohammed, Spreitzer, Matja, Vengust, Damjan, El Marssi, Mimoun, Kutnjak, Zdravko, Luk'yanchuk, Igor A, Gouné, Mohamed
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Summary:The field of piezoelectric nanogenerators is rapidly growing as a promising technology for driving low-power portable devices and self-powered electronic systems by converting wasted mechanical energy into electric energy. In this study, we designed a flexible and self-poled piezocomposite nanogenerator based on lead-free H 2 (Zr 0.1 Ti 0.9 ) 3 O 7 (HZTO) nanowires and a polylactic acid (PLA) biodegradable polymer. By using a piezoresponse force microscope (PFM), the piezoelectric coefficient ( d 33 ) of a single HZTO nanowire was found to be 26 pm V −1 . The piezoelectric energy harvesting performances of a self-poled piezocomposite film fabricated by embedding core-shell structured HZTO nanowires by polydopamine into the PLA matrix were tested. The piezoelectric nanogenerator demonstrated enhanced output performances (an open-circuit voltage of 5.41 V, short-circuit current of 0.26 μA and maximum power density of 463.5 μW cm −3 at a low resistive load of 2.5 MΩ). Besides, the developed device can charge different capacitors by regular mechanical impartations and can power a red light-emitting LED diode by various biomechanical motions. This study reveals the benefits of combining HZTO nanowires and PLA biopolymer in designing high-performance piezoelectric nanocomposites for biomechanical energy harvesting. Design of a low-cost, eco-friendly, self-poled and flexible piezoelectric nanogenerator based on lead-free H 2 (Zr 0.1 Ti 0.9 ) 3 O 7 piezo-nanowires and polylactic acid biodegradable piezopolymer.
ISSN:2398-4902
DOI:10.1039/d2se00234e