Effect of Dy substitution on ferroelectric, optical and electro-optic properties of transparent Pb0.90La0.10(Zr0.65Ti0.35)O3 ceramics

被引：19
|
作者：
Zeng, Xia [1 ]
He, Xiyun [1 ]
Cheng, Wenxiu [1 ]
Qiu, Pingsun [1 ]
Xia, Bin [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, Shanghai 200050, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2014年 / 40卷 / 04期
关键词：
PLZT; Dy substitution; Electra-optic properties; Half-wave voltage; ZIRCONATE-TITANATE CERAMICS; PLZT;
D O I：
10.1016/j.ceramint.2013.11.074
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：
Highly transparent Dy-codoped lead lanthanum zirconate titanate (PLZT) ceramics were sintered from oxide powders by the hot pressing method. The ceramics exhibited a transparency as high as 67% at 632.8 rim (close to the theoretical value). The effects-of substituting Lanthanum by Dysprosium on the phase structure, microstructure, dielectric, ferroelectric, optical and electro-optic properties of PLZT were examined. The results showed that Dy substitution decreased the coercive field, improved the optical transmittance and electro-optic properties of PLZT ceramics. Moreover, the high half-wave voltage (affecting the working voltage of devices) of PLZT was reduced from 850 V to 510 V by Dy substitution. Modified PLDZT transparent ceramics are competitive candidate materials for modern optical communication, and the variable optical attenuator (VOA) based on PLDZT exhibited excellent performances. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：6197 / 6202
页数：6
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