Lead free KNN/P(VDF-TrFE) 0-3 pyroelectric composite films and its infrared sensor

被引：16
|
作者：
Zhang, W. L. [1 ,2 ]
Yu, Y. C. [1 ]
Luo, W. B. [1 ,2 ]
Shuai, Y. [1 ,2 ]
Pan, X. Q. [1 ]
Wu, Q. Q. [1 ]
Wu, C. G. [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
[2] Univ Elect Sci & Technol China, Collaborat Innovat Ctr Elect Mat & Devices, Chengdu 610054, Peoples R China
来源：
INFRARED PHYSICS & TECHNOLOGY | 2017年 / 80卷
关键词：
CERAMICS;
D O I：
10.1016/j.infrared.2016.09.005
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
(K0.5Na0.5)NbO3 (KNN)/[P(VDF-TrFE)70:30] composite thick films with different KNN weight ratios have been fabricated and the effect of KNN mass content on the material structure and properties have been studied in this paper. Properties of the infrared sensor based KNN/[P(VDF-TrFE)70:30] composite thick film were also systematically studied. It was found that the sample containing 30 wt.% KNN show optimal properties for pyroelectric appliance and the highest pyroelectric coefficient was 63 mu Cm-2 K-1. Infrared sensors using 30 wt.% KNN-70 wt.%[P(VDF-TrFE)70:30] show highest detectivity (D* = 3.21 x 10(8) cm Hz(1/2) W-1) at 137.3 Hz, indicating it is an promising candidate in lead-free quick response infrared detectors. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：100 / 104
页数：5
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