Pyroelectric energy harvesting and ferroelectric properties of PbxSr1-xTiO3 ceramics. Issue 4 (1st October 2020)

• Record Type: Journal Article
• Authors: Tang, Zhen-Xun; Ge, Peng-Zu; Tang, Xin-Gui; Liu, Qiu-Xiang; Jiang, Yan-Ping
• Is Part Of: Journal of Asian ceramic societies. Volume 8:Issue 4(2020)
• Page Start: 1147
• Page End: 1153
• Publication Date: 2020-10-01
• Subjects: PbxSr1-xTiO3 (PST) ceramics -- phase transition -- ferroelectric -- pyroelectric energy harvesting; Ceramics -- East Asia -- Periodicals; Materials science -- Periodicals; 620.1405
• DOI: 10.1080/21870764.2020.1824317
• Languages: English
• ISSNs: 2187-0764

Abstract

ABSTRACT: Pb x Sr1- x TiO3 (PST) ( x = 0.3, 0.35 and 0.40, abbreviated as PST30, PST35 and PST40, respectively) ceramics were prepared by solid-state reaction route. Coexistence of tetragonal and cubic phase of ceramics is confirmed by X-ray diffraction pattern at room temperature (RT). Temperature-dependent dielectric permittivity εr measurements showed that Pb 2+ doping increased the phase transition temperature of ferroelectric (FE) to paraelectric (PE) phase. The temperature-related polarization-electric field ( P-E ) measurements were performed to study the FE properties of PST ceramics. Phase transition from FE to PE was observed in P-E measurements. Furthermore, pyroelectric energy harvesting performance was evaluated based on Olsen cycle. The calculated results of pyroelectric energy harvesting density ( ND ) showed that PST35 ceramic with ND = 283 kJ/m 3 ( ∆T = 70°C, EL = 2.5 kV and EH = 40 kV) is most potential for pyroelectric energy harvesting application near RT among all samples.