20.500.12556/RUL-140633 Flexible energy-storage ceramic thick-film structures with high flexural fatigue endurance When developing flexible electronic devices, trade-offs between desired functional properties and sufficient mechanical flexibility must often be considered. The integration of functional ceramics on flexible materials is a major challenge. However, aerosol deposition (AD), a room-temperature deposition method, has gained a reputation for its ability to combine ceramics with polymers previously considered incompatible with the conventional high-temperature sintering process. In this work, 0.9Pb(Mg$_{1/3}$Nb$_{2/3}$)O$_3$−0.1PbTiO$_3$ (PMN−10PT) thick films were deposited directly on a polyimide substrate using the AD method. As a result, dense and flexible relaxor-ferroelectric thick films were produced by a one-step direct-integration, suitable for large-scale production. After annealing of as-deposited PMN−10PT films at 400 °C, stress-relaxation occurs, which is responsible for the development of a relaxor-ferroelectric character. Achieved high polarization (38 μC·cm$^{−2}$), high dielectric breakdown strength (∼1000 kV·cm$^{−1}$), and low hysteresis losses lead to improved recoverable energy density and energy-storage efficiency of the annealed thick films, reaching 10 J·cm$^{−3}$ and 73% (at 1000 kV·cm$^{−1}$), respectively. The thick films were subjected to flexural bending tests, which showed high flexibility (1.1% bending strain) and high durability (10$^5$ bending cycles). This stable energy-storage operation makes ceramic-polymer layered structures promising for integration into a wide range of flexible electronic devices. flexible electronics ceramic thick films energy storage aerosol deposition method polyimide substrate relaxor-ferroelectrics ceramics deposition electric fields granular materials thin films true false true Angleški jezik Ni določen Članek v reviji 2022-09-16 13:05:31 2022-09-16 13:05:32 2022-09-24 04:12:16 0000-00-00 00:00:00 2022 0 0 Str. 6896–6902 iss. 6 Vol. 5 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.1/.2:544.6 2574-0962 10.1021/acsaem.2c00518 110882307 acsaem.2c00518_Flexible_energy-storage_ceramic_thick-film_structures_with_high_flexural_fatigue_endurance.pdf acsaem.2c00518_Flexible_energy-storage_ceramic_thick-film_structures_with_high_flexural_fatigue_endurance.pdf 1 970E0012884A56BB9DFEFC2F95E83D96 310ab4f2aaf94c194cd36319eb8a1fabebb2b4c9be1fcd03b94a7747cd0654f4 52865c05-3b27-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=162057 https://pubs.acs.org/doi/10.1021/acsaem.2c00518 0 aa30ba1c-35af-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=161416 Fakulteta za strojništvo Zdravstvena fakulteta 0 0 0