Infrared optical properties of ferroelectric 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) thin films
Wang, HG (Wang, Hongguang); Xu, JB (Xu, Jinbao); Ma, C (Ma, Chao); Zhao, PJ (Zhao, Pengjun); Wang, L (Wang, Lei); Bian, L (Bian, Liang); Ren, W (Ren, Wei); Chang, AM (Chang, Aimin)
2015
发表期刊CERAMICS INTERNATIONAL
ISSN0272-8842
卷号41期号:1页码:475-480
摘要

0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) (BCZT50) thin films have been prepared on platinized silicon substrates by a modified sol-gel technique and proved to be well-crystallized perovskite ferroelectrics at room temperature. Optical properties of these films in the 2.5-12.5 mu m wavelength range have been investigated by infrared spectroscopic ellipsometry (IRSE) at room temperature. The measured ellipsometry parameters are well fitted by Brendel oscillator dispersion formula. The optical functions and thickness of films have been uniquely extracted. As the wavelength increases, the refractive index decreases while its extinction coefficient increases. The calculated infrared absorption coefficient increases with increasing wavelength in measured wavelength range. It is greater than 1000 cm(-1) for the wavelength over 11.3 mu m. And it is very small and less than 100 cm(-1) for the wavelength under 7.5 mu m. The relatively large of the thin films reveals that it is a promising material for infrared pyroelectric detectors and arrays.

关键词Ferroelectric Infrared Spectroscopic Ellipsometry Refractive Index Extinction Coefficient
DOI10.1016/j.ceramint.2014.08.094
收录类别SCI
WOS记录号WOS:000346216300057
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4217
专题中国科学院特殊环境功能材料与器件重点试验室
材料物理与化学研究室
通讯作者Xu, JB (Xu, Jinbao)
作者单位1.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm CAS, Urumqi 830011, Xinjiang, Peoples R China
2.Chinese Acad Sci, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Xinjiang, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Xinjiang, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Wang, HG ,Xu, JB ,Ma, C ,et al. Infrared optical properties of ferroelectric 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) thin films[J]. CERAMICS INTERNATIONAL,2015,41(1):475-480.
APA Wang, HG .,Xu, JB .,Ma, C .,Zhao, PJ .,Wang, L .,...&Chang, AM .(2015).Infrared optical properties of ferroelectric 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) thin films.CERAMICS INTERNATIONAL,41(1),475-480.
MLA Wang, HG ,et al."Infrared optical properties of ferroelectric 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) thin films".CERAMICS INTERNATIONAL 41.1(2015):475-480.
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