High electrostrictive strain induced by defect dipoles in acceptor-doped (K0.5Na0.5)NbO3 ceramics

Ye Jing Dai; Yong Jie Zhao; Zhe Zhao; Zhi Hao Zhao; Qi Wu Zhou; Xiao Wen Zhang

doi:10.1088/0022-3727/49/27/275303

High electrostrictive strain induced by defect dipoles in acceptor-doped (K_0.5Na_0.5)NbO₃ ceramics

Ye Jing Dai, Yong Jie Zhao, Zhe Zhao, Zhi Hao Zhao, Qi Wu Zhou, Xiao Wen Zhang

School of Material Science and Engineering

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

23 Citations (Scopus)

Abstract

Acceptor doping is an efficient method to improve ferroelectric material performance through the formation of defect dipoles. Here, a high electrostrictive strain of 0.160.19%, and large d∗33 of >300 pm V^-1 are obtained in CuO-doped (K_0.5Na_0.5)NbO₃ ceramics. We analyzed the orientation relationship and the interaction between defect dipole polarization (Pd) along 〈0 0 1〉 orientation and spontaneous polarization (P_s) parallel to 〈1 1 0〈 in orthorhombic (K_0.5Na_0.5)NbO₃. Thus, a coupling effect mechanism was suggested to explain how the Pd and Ps can work together to contribute to the electrostrictive strains in this lead-free piezoelectric ceramic.

Original language	English
Article number	275303
Journal	Journal Physics D: Applied Physics
Volume	49
Issue number	27
DOIs	https://doi.org/10.1088/0022-3727/49/27/275303
Publication status	Published - 7 Jun 2016

Keywords

acceptor doping
defects
lead-free ceramics
perovskite
piezoelectric properties

Access to Document

10.1088/0022-3727/49/27/275303

Cite this

@article{6f0e819f308847f99b51c91667e107f5,

title = "High electrostrictive strain induced by defect dipoles in acceptor-doped (K0.5Na0.5)NbO3 ceramics",

abstract = "Acceptor doping is an efficient method to improve ferroelectric material performance through the formation of defect dipoles. Here, a high electrostrictive strain of 0.160.19%, and large d∗33 of >300 pm V-1 are obtained in CuO-doped (K0.5Na0.5)NbO3 ceramics. We analyzed the orientation relationship and the interaction between defect dipole polarization (Pd) along 〈0 0 1〉 orientation and spontaneous polarization (Ps) parallel to 〈1 1 0〈 in orthorhombic (K0.5Na0.5)NbO3. Thus, a coupling effect mechanism was suggested to explain how the Pd and Ps can work together to contribute to the electrostrictive strains in this lead-free piezoelectric ceramic.",

keywords = "acceptor doping, defects, lead-free ceramics, perovskite, piezoelectric properties",

author = "Dai, {Ye Jing} and Zhao, {Yong Jie} and Zhe Zhao and Zhao, {Zhi Hao} and Zhou, {Qi Wu} and Zhang, {Xiao Wen}",

note = "Publisher Copyright: {\textcopyright} 2016 IOP Publishing Ltd.",

year = "2016",

month = jun,

day = "7",

doi = "10.1088/0022-3727/49/27/275303",

language = "English",

volume = "49",

journal = "Journal Physics D: Applied Physics",

issn = "0022-3727",

publisher = "Institute of Physics",

number = "27",

}

TY - JOUR

T1 - High electrostrictive strain induced by defect dipoles in acceptor-doped (K0.5Na0.5)NbO3 ceramics

AU - Dai, Ye Jing

AU - Zhao, Yong Jie

AU - Zhao, Zhe

AU - Zhao, Zhi Hao

AU - Zhou, Qi Wu

AU - Zhang, Xiao Wen

PY - 2016/6/7

Y1 - 2016/6/7

N2 - Acceptor doping is an efficient method to improve ferroelectric material performance through the formation of defect dipoles. Here, a high electrostrictive strain of 0.160.19%, and large d∗33 of >300 pm V-1 are obtained in CuO-doped (K0.5Na0.5)NbO3 ceramics. We analyzed the orientation relationship and the interaction between defect dipole polarization (Pd) along 〈0 0 1〉 orientation and spontaneous polarization (Ps) parallel to 〈1 1 0〈 in orthorhombic (K0.5Na0.5)NbO3. Thus, a coupling effect mechanism was suggested to explain how the Pd and Ps can work together to contribute to the electrostrictive strains in this lead-free piezoelectric ceramic.

AB - Acceptor doping is an efficient method to improve ferroelectric material performance through the formation of defect dipoles. Here, a high electrostrictive strain of 0.160.19%, and large d∗33 of >300 pm V-1 are obtained in CuO-doped (K0.5Na0.5)NbO3 ceramics. We analyzed the orientation relationship and the interaction between defect dipole polarization (Pd) along 〈0 0 1〉 orientation and spontaneous polarization (Ps) parallel to 〈1 1 0〈 in orthorhombic (K0.5Na0.5)NbO3. Thus, a coupling effect mechanism was suggested to explain how the Pd and Ps can work together to contribute to the electrostrictive strains in this lead-free piezoelectric ceramic.

KW - acceptor doping

KW - defects

KW - lead-free ceramics

KW - perovskite

KW - piezoelectric properties

UR - http://www.scopus.com/inward/record.url?scp=84978296454&partnerID=8YFLogxK

U2 - 10.1088/0022-3727/49/27/275303

DO - 10.1088/0022-3727/49/27/275303

M3 - Article

AN - SCOPUS:84978296454

SN - 0022-3727

VL - 49

JO - Journal Physics D: Applied Physics

JF - Journal Physics D: Applied Physics

IS - 27

M1 - 275303

ER -

High electrostrictive strain induced by defect dipoles in acceptor-doped (K_0.5Na_0.5)NbO₃ ceramics

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this