Energy storage performance of (K, Na)NbO3 ferroelectric thin films with Mn-Ta and Mn-Ti co-doping
Source abstract
Abstract
Abstract The lead-free KNN (K0.5Na0.5NbO3) films were co-doped with Mn-Ta and Mn-Ti via the Sol-Gel method. With Mn doping, the leakage behavior in the KNN films is significantly weakened. Annealed at 700 °C, the KNNM film shows good crystallinity, dense morphology and better energy storage performance. With Mn-Ta and Mn-Ti co-doping, the KNNM4R (K0.5Na0.5Nb0.96-xMn0.04RxO3, R = Ta, Ti) films still show tetragonal phase and the smoothest surface morphology at 6mol% Ta or Ti content, with about 200 nm in thickness. Under the breakdown field strength of 2700 kV/cm and 2800 kV/cm, the (Pm-Pr) of Ta6 and Ti6 films are 20.7 μC/cm2 and 22.4 μC/cm2, the Wrec and η are up to 20.7 J/cm3, 23.9 J/cm3 and 57%, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Dielectric materials and actuators · Acoustic Wave Resonator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
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