Smart functional polymer-ceramic composites for sustainable energy harvesting and storage
BUSCAGLIA M. 1, STAGNARO P. 2, CURECHERIU L. 3, CANU G. 1, MERCADELLI E. 4, VIJATOVI? PETROVI? M. 5, CRACIUN F. 6, BARZIC A. 7, MITOSERIU L. 3, BUSCAGLIA V. 1
1 CNR-ICMATE, Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council, Via de Marini 6, Genoa, Italy; 2 CNR-SCITEC, Institute of Chemical Sciences and Technologies “Giulio Natta”, National Research Council, Via de Marini 6, Genoa, Italy; 3 Faculty of Physics, Alexandru Ioan Cuza University, Blv. Carol I, nr.11, 700506, Iasi, Romania; 4 CNR-ISTEC, Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, Faenza, Italy; 5 Institute for Multidisciplinary Research, University of Belgrade, Kneza Viseslava 1, Belgrade, Serbia; 6 CNR-ISM, Institute of Structure of Matter, National Research Council, Via del Fosso del Cavaliere, 100, Rome, Italy; 7 “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41A, Iasi, Romania
Polymer-based composites containing insulating inorganic fillers with different functionalities are attracting a great deal of interest for multiple applications, including embedded planar capacitors, flexible piezoelectric harvesters and portable devices for self-powered electronics.
They combine typical properties of polymers, such as easy processing at low temperature, flexibility and high breakdown strength (BDS) with the dielectric or piezoelectric properties of some inorganic compounds and, in particular, of ferroelectric perovskites such as BaTiO3, 0.94 Na0.5Bi0.5TiO3 - 0.06 BaTiO3 and Ba1-yCayZrxTi1-xO3.
A rational selection of components, good interface engineering and proper processing optimization allows a thorough comprehension of the complex process-structure-morphology-properties relationships of the multicomponent systems. Here, we present our most significant results on PVDF-ceramic composites for energy harvesting and storage.
A careful multi-level characterization allows the optimization of the functional properties (dielectric behaviour, piezoelectricity, power density), performance and durability (mechanical strength, flexibility, fatigue resistance) as specifically required for the envisaged final devices.
Acknowledgements: This work was carried out in the framework of Bilateral Agreement Italy-Serbia, code: RS19MO01 ; Project RAISE, selected by PNRR funds for Innovation Ecosystems for Liguria ; Bilateral Agreement Italy-Romania 2023-2025