Low temperature preparation and electric properties of highly (100)-oriented (Na0.85K0.15)0.5Bi0.5TiO3 thin films prepared by a sol-gel route

被引：2

作者：

Chi, Q. G. ^{[1
,2
,3
]}

Cui, Y. ^{[1
]}

Chen, Y. ^{[2
]}

Lin, J. Q. ^{[2
]}

Wang, X. ^{[2
]}

Lei, Q. Q. ^{[2
]}

机构：

[1] Harbin Univ Sci & Technol, Sch Appl Sci, Harbin 150080, Peoples R China

[2] Harbin Univ Sci & Technol, Minist Educ, Key Lab Engn Dielect & Its Applicat, Harbin 150080, Peoples R China

[3] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Films; Sol-gel process; Interfaces; Electrical properties; Perovslcites; FERROELECTRIC PROPERTIES; MECHANICAL-PROPERTIES; SEED LAYER; ORIENTATION;

D O I：

10.1016/j.ceramint.2015.10.050

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Lead-free (Na0.85K0.15)(0.5)Bi0.5TiO3 thin films with different spin-coating layers were fabricated by a sol-gel process using a 15 nm-thick Pb0.8La0.1Ca0.1Ti0.975O3 seed layer. The phase composition and electrical properties of the thin films were investigated in detail. X-ray diffraction analysis indicated that low-temperature growth of (Na0.85.K0.15)(0.5)Bi0.5TiO3 thin films-as low as 500 degrees C-was successfully achieved. The films, comprising six layers, featured both rhombohedra and tetragonal phases near the morphotropic phase boundary. In contrast, the films fabricated with 9 and 12 layers consisted of single phase only. Additionally, a slow interfacial diffusion was achieved, owing to the low crystallization temperature. The six-layer thin film that crystallized at a low temperature exhibited enhanced electrical properties when the external electric field was small, which was attributed to the co-existence of multiple phases and an unhindered interface. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：2497 / 2501

页数：5

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