Spectroscopic ellipsometry study of 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) ferroelectric thin films
Wang, Hongguang; Xu, Jinbao; Ma, Chao; Xu, Fanglong; Wang, Lei; Bian, Liang; Chang, Aimin
2014
发表期刊Journal of Alloys and Compounds
ISSN0925-8388
卷号615期号:12页码:526-530
摘要

0.5BaZr0.2Ti0.8O3-0.5Ba 0.7Ca0.3TiO3 thin films have been deposited on Pt/Ti/SiO2/Si substrates by a modified sol-gel technique. The samples are well-crystallized perovskite ferroelectrics at room temperature, with good surface topography. Optical properties of these films in the 280-850 nm wavelength range have been investigated by spectroscopic ellipsometry at room temperature. The measured ellipsometry parameters are well fitted by Tauc-Lorentz oscillator dispersion formula. As the wavelength increases, the refractive index and extinction coefficient rise in the beginning and then descend, with a peak at about 300 nm. The calculated absorption coefficient demonstrates that as-grown films have selective absorption, with a broad transparent range, and possess a big energy gap (4.18 eV).

关键词Ferroelectric Sol-gel Technique Spectroscopic Ellipsometry Refractive Index Extinction Coefficient
DOI10.1016/j.jallcom.2014.06.186
收录类别SCI
WOS记录号WOS:000342245700081
引用统计
被引频次:4[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/365002/3731
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, Jinbao
作者单位Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Xinjiang, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Wang, Hongguang,Xu, Jinbao,Ma, Chao,et al. Spectroscopic ellipsometry study of 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) ferroelectric thin films[J]. Journal of Alloys and Compounds,2014,615(12):526-530.
APA Wang, Hongguang.,Xu, Jinbao.,Ma, Chao.,Xu, Fanglong.,Wang, Lei.,...&Chang, Aimin.(2014).Spectroscopic ellipsometry study of 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) ferroelectric thin films.Journal of Alloys and Compounds,615(12),526-530.
MLA Wang, Hongguang,et al."Spectroscopic ellipsometry study of 0.5BaZr(0.2)Ti(0.8)O(3)-0.5Ba(0.7)Ca(0.3)TiO(3) ferroelectric thin films".Journal of Alloys and Compounds 615.12(2014):526-530.
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