Title :

Improvement of the electrocaloric effect and energy storage performances in Pb-free ferroelectric Ba0.9Sr0.1Ti0.9Sn0.1O3 ceramic near room temperature

Author(s) :

Khardazi, S. [Auteur]
Zaitouni, H. [Auteur]
Belkhadir, S. [Auteur]
Mezzane, D. [Auteur]
Laboratoire de Matière Condensée et Nanostructures [LMCN]
Amjoud, M. [Auteur]
Laboratoire de Matière Condensée et Nanostructures [LMCN]
Gagou, Y. [Auteur]
Laboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
Asbani, B. [Auteur]
Institut des Matériaux de Nantes Jean Rouxel [IMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Lukyanchuk, I [Auteur]
Laboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
Terenchuk, S. [Auteur]

Journal title :

JOURNAL OF SOLID STATE CHEMISTRY

Publication date :

2022

HAL domain(s) :

Physique [physics]/Matière Condensée [cond-mat]

English abstract : [en]

Perovskite-type Ba0.9Sr0.1Ti0.9Sn0.1O3 (BSTSn) ceramic was synthesized by the sol-gel method. The P-E hysteresis loops were recorded at different temperatures to investigate the ferroelectric and energy storage properties ...
Show more >Perovskite-type Ba0.9Sr0.1Ti0.9Sn0.1O3 (BSTSn) ceramic was synthesized by the sol-gel method. The P-E hysteresis loops were recorded at different temperatures to investigate the ferroelectric and energy storage properties of BSTSn ceramic. Enhanced recoverable energy density and high energy storage efficiency were found to be 58.08 mJ/cm(3) and 84.36%, respectively at room temperature (RT) under a moderate applied electric field of 20 kV/cm. The electrocaloric effect (ECE) in the BSTSn ceramic was explored using two different approaches based on P-E hysteresis loops, and pyroelectric current measurements. The largest electrocaloric (EC) temperature change, Delta T-m(ax) approximate to 0.63 K was determined using the Maxwell relationship obtained near RT under 20 kV/cm. The corresponding EC responsivity (xi(max)) value of 0.31 K mm/kV is one of the highest reported values in lead-free ferroelectrics near RT. This study demonstrates that the BSTSn ceramic is a promising candidate for solid-state cooling and energy storage applications.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL

Submission date :

2022-05-27T02:45:12Z