Nanostructured BaTi<sub>1-x</sub>Sn<sub>x</sub>O<sub>3</sub> ferroelectric materials for electrocaloric applications and energy performance - Université d'Artois Access content directly
Journal Articles Current Applied Physics Year : 2022

Nanostructured BaTi1-xSnxO3 ferroelectric materials for electrocaloric applications and energy performance

Abstract

Nanostructured BaTi1-xSnxO3 (x = 0, 0.05 & 0.075) were successfully synthesized using the modified Pechini processing method. The phase purity and symmetry were examined by X-ray diffraction and Raman spectroscopy. Tetragonal symmetry was obtained for BaTiO3 (BT) while orthorhombic symmetry for Sn doped BT. BT exhibits an up-shift of the Curie temperature towards high temperatures (TC = 139 °C). In contrast, a down-shift was recorded for Sn doped BT. Then, indirect electrocaloric (EC) adiabatic temperature change ΔT and the energy storage performances were determined based on ferroelectric hysteresis loops. Interestingly, large EC responsivity of ΔT/ΔE = 0.81 × 10−6 K m/V was obtained for the BT accompanied with a moderate stored energy of 23 mJ/cm3 but with a high energy efficiency of 67%. The incorporation of Sn in BT was found to broaden the EC responsivity and to improve the energy efficiency up to 90%, recorded for the 5% Sn doped BT.
Embargoed file
Embargoed file
0 1 8
Year Month Jours
Avant la publication
Monday, July 1, 2024
Embargoed file
Monday, July 1, 2024
Please log in to request access to the document

Dates and versions

hal-03689640 , version 1 (27-11-2023)

Identifiers

Cite

M. Benyoussef, T. Mura, S. Saitzek, F. Azrour, Jean-François Blach, et al.. Nanostructured BaTi1-xSnxO3 ferroelectric materials for electrocaloric applications and energy performance. Current Applied Physics, 2022, 38, pp.59-66. ⟨10.1016/j.cap.2022.03.012⟩. ⟨hal-03689640⟩
41 View
2 Download

Altmetric

Share

Gmail Facebook X LinkedIn More