The electrocaloric effect in intrinsic-acceptor-doped Ba(Ti,Ce)O3-(Ba,Ca)TiO3 ceramics

Yang Yang; Zhijian Zhou; Xiaoqin Ke; Yu Wang; Xiaopo Su; Jianting Li; Yang Bai; Xiaobing Ren

doi:10.1016/j.scriptamat.2019.08.026

The electrocaloric effect in intrinsic-acceptor-doped Ba(Ti,Ce)O₃-(Ba,Ca)TiO₃ ceramics

Yang Yang
, Zhijian Zhou
, Xiaoqin Ke
, Yu Wang
, Xiaopo Su
, Jianting Li
, Yang Bai
, Xiaobing Ren

Frontier Institute of Science and Technology

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The electrocaloric effect (ECE) of intrinsic-acceptor-doped ferroelectric system (1-x)Ba(Ti_0.9Ce_0.1)O₃-x(Ba_0.7Ca_0.3)TiO₃ (x = 0.3,0.5) has been studied by indirect and direct approaches. It was found that the indirect approach based on Maxwell equation is not appropriate for measuring the ECE of this acceptor-doped system. More importantly, a relatively large electrocaloric response is obtained at temperatures far below T_C (maximum difference ~75 °C), which can reach 75%~90% of the maximum electrocaloric effect near T_C. The unique characteristics of this acceptor-doped system have been explained by the existence of orientable defect dipoles. Our work could stimulate the design of temperature-stable electrocaloric effect through acceptor-doping.

Original language	English
Pages (from-to)	44-48
Number of pages	5
Journal	Scripta Materialia
Volume	174
DOIs	https://doi.org/10.1016/j.scriptamat.2019.08.026
State	Published - 1 Jan 2020

Keywords

Acceptor-doping
Electrocaloric effect
Ferroelectric ceramic
Temperature stability

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10.1016/j.scriptamat.2019.08.026

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@article{1f63b8410d1e4912af6da0961280cc9c,

title = "The electrocaloric effect in intrinsic-acceptor-doped Ba(Ti,Ce)O3-(Ba,Ca)TiO3 ceramics",

abstract = "The electrocaloric effect (ECE) of intrinsic-acceptor-doped ferroelectric system (1-x)Ba(Ti0.9Ce0.1)O3-x(Ba0.7Ca0.3)TiO3 (x = 0.3,0.5) has been studied by indirect and direct approaches. It was found that the indirect approach based on Maxwell equation is not appropriate for measuring the ECE of this acceptor-doped system. More importantly, a relatively large electrocaloric response is obtained at temperatures far below TC (maximum difference \textasciitilde{}75 °C), which can reach 75\%\textasciitilde{}90\% of the maximum electrocaloric effect near TC. The unique characteristics of this acceptor-doped system have been explained by the existence of orientable defect dipoles. Our work could stimulate the design of temperature-stable electrocaloric effect through acceptor-doping.",

keywords = "Acceptor-doping, Electrocaloric effect, Ferroelectric ceramic, Temperature stability",

author = "Yang Yang and Zhijian Zhou and Xiaoqin Ke and Yu Wang and Xiaopo Su and Jianting Li and Yang Bai and Xiaobing Ren",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = jan,

day = "1",

doi = "10.1016/j.scriptamat.2019.08.026",

language = "英语",

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TY - JOUR

T1 - The electrocaloric effect in intrinsic-acceptor-doped Ba(Ti,Ce)O3-(Ba,Ca)TiO3 ceramics

AU - Yang, Yang

AU - Zhou, Zhijian

AU - Ke, Xiaoqin

AU - Wang, Yu

AU - Su, Xiaopo

AU - Li, Jianting

AU - Bai, Yang

AU - Ren, Xiaobing

PY - 2020/1/1

Y1 - 2020/1/1

N2 - The electrocaloric effect (ECE) of intrinsic-acceptor-doped ferroelectric system (1-x)Ba(Ti0.9Ce0.1)O3-x(Ba0.7Ca0.3)TiO3 (x = 0.3,0.5) has been studied by indirect and direct approaches. It was found that the indirect approach based on Maxwell equation is not appropriate for measuring the ECE of this acceptor-doped system. More importantly, a relatively large electrocaloric response is obtained at temperatures far below TC (maximum difference ~75 °C), which can reach 75%~90% of the maximum electrocaloric effect near TC. The unique characteristics of this acceptor-doped system have been explained by the existence of orientable defect dipoles. Our work could stimulate the design of temperature-stable electrocaloric effect through acceptor-doping.

AB - The electrocaloric effect (ECE) of intrinsic-acceptor-doped ferroelectric system (1-x)Ba(Ti0.9Ce0.1)O3-x(Ba0.7Ca0.3)TiO3 (x = 0.3,0.5) has been studied by indirect and direct approaches. It was found that the indirect approach based on Maxwell equation is not appropriate for measuring the ECE of this acceptor-doped system. More importantly, a relatively large electrocaloric response is obtained at temperatures far below TC (maximum difference ~75 °C), which can reach 75%~90% of the maximum electrocaloric effect near TC. The unique characteristics of this acceptor-doped system have been explained by the existence of orientable defect dipoles. Our work could stimulate the design of temperature-stable electrocaloric effect through acceptor-doping.

KW - Acceptor-doping

KW - Electrocaloric effect

KW - Ferroelectric ceramic

KW - Temperature stability

UR - https://www.scopus.com/pages/publications/85071496266

U2 - 10.1016/j.scriptamat.2019.08.026

DO - 10.1016/j.scriptamat.2019.08.026

M3 - 文章

AN - SCOPUS:85071496266

SN - 1359-6462

VL - 174

SP - 44

EP - 48

JO - Scripta Materialia

JF - Scripta Materialia

ER -

The electrocaloric effect in intrinsic-acceptor-doped Ba(Ti,Ce)O₃-(Ba,Ca)TiO₃ ceramics

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Keywords

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