Pyroelectric and Dielectric properties of Ferroelectric Ceramics for Microwave Tunable Devices and Infrared Detector Applications

被引：0
|
作者：
Martinez, F. L. [1 ]
Hinojosa, J. [1 ]
Domenech, G. [1 ]
Luque, F. [1 ]
Zapata, J. [1 ]
Ruiz, R. [1 ]
Pardo, L. [2 ]
机构：
[1] Univ Politecn Cartagena, Dep Elect & Tecnol Comp, Cartagena, Spain
[2] Inst Ciencias Mat Madrid, Consejo Super Investigaciones Cientificas, Madrid, Spain
来源：
2012 INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS HELD JOINTLY WITH 11TH IEEE ECAPD AND IEEE PFM (ISAF/ECAPD/PFM) | 2012年
关键词：
ferroelectric ceramics; dielectric permittivity; microwave tunable devices; pyroelectric infrared sensors; COMPLEX PERMITTIVITY; FAST EXTRACTION; PERMEABILITY; MICROSTRIP; LINE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents new results of low frequency pyroelectric behavior and dielectric constant tunability at microwave frequencies of novel lead-free ferro-piezoelectric ceramics with composition (Bi0.5Na0.5)(0.96)Ba0.04TiO3, We show that these ceramics perform well as pyroelectric infrared detectors, with a sensitivity comparable to traditional lead-containing ceramics. For microwave tunable applications, the material presents a promising tunability of the dielectric constant in the range from 100 MHz to 3 GHz when moderate DC electric fields are applied. These results encourage the research on this material for new applications in the fields of microwave devices and infrared optoelectronics.
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页数：4
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