High piezoelectricity of Eu3+-doped Pb(Mg1/3Nb2/3)O3–0.25PbTiO3 transparent ceramics

Kai Li; Enwei Sun; Yongcheng Zhang; Zhenzhen Song; Xudong Qi; Yuan Sun; Jiaming Li; Bin Yang; Jian Liu; Wenwu Cao

doi:10.1039/D0TC05351A

High piezoelectricity of Eu³⁺-doped Pb(Mg_1/3Nb_2/3)O₃–0.25PbTiO₃ transparent ceramics†

Kai Li,^a Enwei Sun,

*^a Yongcheng Zhang,*^b Zhenzhen Song,^b Xudong Qi,^a Yuan Sun,^a Jiaming Li,^a Bin Yang,*^a Jian Liu^a and Wenwu Cao

^ac

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* Corresponding authors

^a Condensed Matter Science and Technology Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
E-mail: sunew@hit.edu.cn, binyang@hit.edu.cn

^b College of Physics and University-Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, Qingdao 266071, China
E-mail: qdzhyc@qdu.edu.cn

^c Department of Mathematics and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

Abstract

Optically transparent Eu³⁺-doped Pb(Mg_1/3Nb_2/3)O₃–0.25PbTiO₃ (PMN–0.25PT:Eu³⁺) relaxor ferroelectric ceramics with high piezoelectricity were prepared by oxygen-atmosphere sintering followed by hot-press sintering. A high piezoelectric charge coefficient (d₃₃ = 850 pC N⁻¹) and effective piezoelectric strain coefficient (d₃₃* ≈ 1520 pm V⁻¹) were achieved in the 2 mol% Eu³⁺-doped PMN–0.25PT transparent ceramic. Local nanoscale domain patterns and piezoresponse of PMN–0.25PT:Eu³⁺ transparent ceramics were observed and quantitatively analyzed by using piezoelectric force microscopy and the autocorrelation function method to understand the origin of the high piezoelectricity. It is found that the introduction of Eu³⁺ doping will enhance the local structure heterogeneity in PMN–PT ceramics and the obtained high piezoelectric properties are related to the dynamic behavior of local nano-domains. Our result showed that doping with rare earth element Eu³⁺ is an effective method for making transparent ferroelectric ceramics with enhanced piezoelectric performance, which benefits the design and development of eletro-optic devices as well as transparent sensors and ultrasound transducers.

Journal of Materials Chemistry C

High piezoelectricity of Eu³⁺-doped Pb(Mg_1/3Nb_2/3)O₃–0.25PbTiO₃ transparent ceramics†

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High piezoelectricity of Eu³⁺-doped Pb(Mg_1/3Nb_2/3)O₃–0.25PbTiO₃ transparent ceramics

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Journal of Materials Chemistry C