Enhanced electrocaloric effect in lead-free BaTi1−xSnxO3 ceramics near room temperature

Zhengdong Luo; Dawei Zhang; Yang Liu; Di Zhou; Yonggang Yao; Chenqi Liu; Brahim Dkhil; Xiaobing Ren; Xiaojie Lou

doi:10.1063/1.4895615

Enhanced electrocaloric effect in lead-free BaTi_1−xSn_xO₃ ceramics near room temperature

Zhengdong Luo
, Dawei Zhang
, Yang Liu
, Di Zhou
, Yonggang Yao
, Chenqi Liu
, Brahim Dkhil
, Xiaobing Ren
, Xiaojie Lou

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

204 Scopus citations

Abstract

The electrocaloric effect in lead-free BaTi_1−xSn_xO₃ (BTSn, x = 0.08, 0.105, and 0.14) ferroelectric ceramics was studied by using an indirect method. It was found that the largest electrocaloric response could be achieved in BTSn with x = x_QP = 0.105 near room temperature with an adiabatic temperature change Δ T of 0.61 K and an electrocaloric strength Δ T / Δ E of 0.31 K mm kV⁻¹, under a modest electric field Δ E of 20 kV cm⁻¹, which is comparable with the best values reported in lead-free materials. These enhanced values are attributed to the multiphase (four phases) coexistence at x = x_QP corresponding to the quasi-quadruple point composition.

Original language	English
Article number	102904
Journal	Applied Physics Letters
Volume	105
Issue number	10
DOIs	https://doi.org/10.1063/1.4895615
State	Published - 8 Sep 2014

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title = "Enhanced electrocaloric effect in lead-free BaTi1−xSnxO3 ceramics near room temperature",

abstract = "The electrocaloric effect in lead-free BaTi1−xSnxO3 (BTSn, x = 0.08, 0.105, and 0.14) ferroelectric ceramics was studied by using an indirect method. It was found that the largest electrocaloric response could be achieved in BTSn with x = xQP = 0.105 near room temperature with an adiabatic temperature change Δ T of 0.61 K and an electrocaloric strength Δ T / Δ E of 0.31 K mm kV−1, under a modest electric field Δ E of 20 kV cm−1, which is comparable with the best values reported in lead-free materials. These enhanced values are attributed to the multiphase (four phases) coexistence at x = xQP corresponding to the quasi-quadruple point composition.",

author = "Zhengdong Luo and Dawei Zhang and Yang Liu and Di Zhou and Yonggang Yao and Chenqi Liu and Brahim Dkhil and Xiaobing Ren and Xiaojie Lou",

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T1 - Enhanced electrocaloric effect in lead-free BaTi1−xSnxO3 ceramics near room temperature

AU - Luo, Zhengdong

AU - Zhang, Dawei

AU - Liu, Yang

AU - Zhou, Di

AU - Yao, Yonggang

AU - Liu, Chenqi

AU - Dkhil, Brahim

AU - Ren, Xiaobing

AU - Lou, Xiaojie

PY - 2014/9/8

Y1 - 2014/9/8

N2 - The electrocaloric effect in lead-free BaTi1−xSnxO3 (BTSn, x = 0.08, 0.105, and 0.14) ferroelectric ceramics was studied by using an indirect method. It was found that the largest electrocaloric response could be achieved in BTSn with x = xQP = 0.105 near room temperature with an adiabatic temperature change Δ T of 0.61 K and an electrocaloric strength Δ T / Δ E of 0.31 K mm kV−1, under a modest electric field Δ E of 20 kV cm−1, which is comparable with the best values reported in lead-free materials. These enhanced values are attributed to the multiphase (four phases) coexistence at x = xQP corresponding to the quasi-quadruple point composition.

AB - The electrocaloric effect in lead-free BaTi1−xSnxO3 (BTSn, x = 0.08, 0.105, and 0.14) ferroelectric ceramics was studied by using an indirect method. It was found that the largest electrocaloric response could be achieved in BTSn with x = xQP = 0.105 near room temperature with an adiabatic temperature change Δ T of 0.61 K and an electrocaloric strength Δ T / Δ E of 0.31 K mm kV−1, under a modest electric field Δ E of 20 kV cm−1, which is comparable with the best values reported in lead-free materials. These enhanced values are attributed to the multiphase (four phases) coexistence at x = xQP corresponding to the quasi-quadruple point composition.

UR - https://www.scopus.com/pages/publications/85168083470

U2 - 10.1063/1.4895615

DO - 10.1063/1.4895615

M3 - 文章

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

M1 - 102904

ER -

Enhanced electrocaloric effect in lead-free BaTi_1−xSn_xO₃ ceramics near room temperature

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