Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary

The lead-free piezoelectric 0.915K0.5Na0.5NbO3-0.075BaZrO3-0.01Bi0.5Na0.5TiO3 (0.915KNN-0.075BZ-0.01BNT) films were prepared by a chemical solution deposition method. The films possess a pure rhomobohedral perovskite phase and a dense surface without crack. The temperature-dependent dielectric prope...

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Main Authors:	Wen Chen, Jinyan Zhao, Lingyan Wang, Wei Ren, Ming Liu
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2015-07-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.4928095

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recordtype	oai_dc
spelling	doaj-art-6d1c1b0960a04cdd88ea8f64db1b34942018-09-02T04:52:13ZengAIP Publishing LLCAIP Advances2158-32262015-07-0157077190077190-610.1063/1.4928095091507ADVLead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundaryWen Chen0Jinyan Zhao1Lingyan Wang2Wei Ren3Ming Liu4Electronic Material Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, ChinaElectronic Material Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, ChinaElectronic Material Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, ChinaElectronic Material Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, ChinaElectronic Material Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, ChinaThe lead-free piezoelectric 0.915K0.5Na0.5NbO3-0.075BaZrO3-0.01Bi0.5Na0.5TiO3 (0.915KNN-0.075BZ-0.01BNT) films were prepared by a chemical solution deposition method. The films possess a pure rhomobohedral perovskite phase and a dense surface without crack. The temperature-dependent dielectric properties of the specimens manifest that only phase transition from ferroelectric to paraelectric phase occurred and the Curie temperature is 217 oC. The temperature stability of ferroelectric phase was also supported by the stable piezoelectric properties of the films. These results suggest that the slope of the morphotropic phase boundary (MPB) for the solid solution formed with the KNN and BZ in the films should be vertical. The voltage-induced polarization switching, and a distinct piezo-response suggested that the 0.915 KNN-0.075BZ-0.01BNT films show good piezoelectric properties.http://dx.doi.org/10.1063/1.4928095
institution	Open Data Bank
collection	Open Access Journals
building	Directory of Open Access Journals
language	English
format	Article
author	Wen Chen Jinyan Zhao Lingyan Wang Wei Ren Ming Liu
spellingShingle	Wen Chen Jinyan Zhao Lingyan Wang Wei Ren Ming Liu Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary AIP Advances
author_facet	Wen Chen Jinyan Zhao Lingyan Wang Wei Ren Ming Liu
author_sort	Wen Chen
title	Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary
title_short	Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary
title_full	Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary
title_fullStr	Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary
title_full_unstemmed	Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary
title_sort	lead-free piezoelectric knn-bz-bnt films with a vertical morphotropic phase boundary
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2015-07-01
description	The lead-free piezoelectric 0.915K0.5Na0.5NbO3-0.075BaZrO3-0.01Bi0.5Na0.5TiO3 (0.915KNN-0.075BZ-0.01BNT) films were prepared by a chemical solution deposition method. The films possess a pure rhomobohedral perovskite phase and a dense surface without crack. The temperature-dependent dielectric properties of the specimens manifest that only phase transition from ferroelectric to paraelectric phase occurred and the Curie temperature is 217 oC. The temperature stability of ferroelectric phase was also supported by the stable piezoelectric properties of the films. These results suggest that the slope of the morphotropic phase boundary (MPB) for the solid solution formed with the KNN and BZ in the films should be vertical. The voltage-induced polarization switching, and a distinct piezo-response suggested that the 0.915 KNN-0.075BZ-0.01BNT films show good piezoelectric properties.
url	http://dx.doi.org/10.1063/1.4928095
_version_	1612657066462150656

Lead-free piezoelectric KNN-BZ-BNT films with a vertical morphotropic phase boundary

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