Microstructures and ferroelectric properties of PbTiO3/PbZrO3 superlattices deposited by pulse laser deposition

doi:10.1016/j.ceramint.2018.08.059

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructures and ferroelectric properties of PbTiO3/PbZrO3 superlattices deposited by pulse laser deposition
	Lin, JL ; Wang, ZJ ; Zhao, X ; Liu, W 1; Zhang, ZD
刊名	CERAMICS INTERNATIONAL
	2018-12-01
卷号	44 期号:17 页码:20664-20670
关键词	Ferroelectric superlattices PbTiO3/PbZrO3 Pulse laser deposition Microstructure Electrical properties
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2018.08.059
英文摘要	In general, the strain effect and the electrostatic effect are important factors influencing the electrical properties of ferroelectric superlattices. However, the interfacial diffusion may also greatly influence the electrical properties of ferroelectric superlattices. Here, we deposited PbTiO3/PbZrO3 (PTO/PZO) superlattices on Nb-doped SrTiO3 (NSTO) single-crystal substrates by pulse laser deposition with the same deposition processes but different cooling processes to explore the effects of interface diffusion on the structural and electrical properties of the superlattices. The experimental results showed that with increasing the holding time in the cooling process after deposition, the ferroelectric and dielectric properties were enhanced, meanwhile, the leakage current density was reduced. Transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS) results showed that the PTO/PZO interfaces became blurred with increasing cooling time. Therefore, the increase in ferroelectric and dielectric properties and the decrease in leakage current density may be due to the interdiffusion of Ti and Zr ions at the PTO/PZO interfaces resulting in the formation of Pb(ZrxTi1-x)O-3 (PZT) and the decrease of interface defects at the PTO/PZO interfaces. Our results demonstrate that besides the strain and electrostatic effects, the interdiffusion of the elements at the interfaces is also an important factor that influences the electrical properties of ferroelectric superlattices.
学科主题	Materials Science, Ceramics
语种	英语
WOS记录号	WOS:000448226900008
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79792]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Lin, JL,Wang, ZJ,Zhao, X,et al. Microstructures and ferroelectric properties of PbTiO3/PbZrO3 superlattices deposited by pulse laser deposition[J]. CERAMICS INTERNATIONAL,2018,44(17):20664-20670.
APA	Lin, JL,Wang, ZJ,Zhao, X,Liu, W,&Zhang, ZD.(2018).Microstructures and ferroelectric properties of PbTiO3/PbZrO3 superlattices deposited by pulse laser deposition.CERAMICS INTERNATIONAL,44(17),20664-20670.
MLA	Lin, JL,et al."Microstructures and ferroelectric properties of PbTiO3/PbZrO3 superlattices deposited by pulse laser deposition".CERAMICS INTERNATIONAL 44.17(2018):20664-20670.