20.500.12556/DiRROS-23139 Improved thermal stability of dielectric properties and energy storage properties of lead-free relaxor ▫$Ba_{(1-x)}La_xTi_{0.89}Sn_{0.11}O_3$▫ ceramics Environmentally friendly perovskite ceramics Ba(1-x)LaxTi0.89Sn0.11O3 with x = 0, 0.015, 0.025, and 0.035 (BLTSnx) were synthesized by solid-state reaction method. The enhanced energy storage properties were studied across the ferroelectric relaxor conversion. The pure perovskite structure of all prepared samples was confirmed by X-ray diffraction (XRD) analysis and the Raman spectroscopy technique. Scanning electron microscopy micrographs show a drastic decrease in the grain size in La-doped ceramics. Furthermore, the doped samples exhibit smeared phase transition and frequency dispersion in dielectric permittivity, typical for relaxors. The P-E hysteresis loops become thin with the increase of the La-doping, demonstrating the ferroelectric-relaxor phase conversion. The improved recovered energy density and the energy storage efficiency of 158.8 mJ/cm3 and 82.73 % were observed in the BLTSn2.5 sample at room temperature, respectively. These properties indicate that environmentally friendly BLTSn2.5 is a viable candidate for energy-storage capacitor applications near room temperature. solid-state perovskite structure ferroelectrics materiali feroelektriki perovskit true false true Elsevier Nizozemska Angleški jezik Slovenski jezik © 2025 Elsevier Ltd and Techna Group S.r.l. Neznano 2025-08-01 10:25:10 2025-08-01 10:25:10 2025-10-24 03:53:18 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Soavtorji: N. Novak,B. Rožič, Kutnjak Zdravko; Opis vira z dne 1. 8. 2025; str. 22386-22396 iss. 16, Part A Vol. 51 Jul. 2025 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 2024-12-30 2025-02-27 2025-02-27 2027-02-27 620.1/.2 1873-3956 10.1016/j.ceramint.2025.02.399 244526851 https://www.sciencedirect.com/science/article/pii/S0272884225011022?via%3Dihub 1 0b27bdd3-6eb1-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33959 RAZ_Khardazi_Said_2025.pdf RAZ_Khardazi_Said_2025.pdf 1 F8E58A2340FC7B15B665C834DE01DF64 24f31dc140668c85ced94de8fd07f018e54287fcae2f8aeddf4bdafa1e45adef be492f4d-6eb1-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33960 Institut Jožef Stefan 0 0 0