红外与毫米波学报2012，Vol.31Issue(3)：193-196,4.DOI:10.3724/SP.J.1010.2012.00193
Zn-Mn共掺对BTO薄膜光学性质及铁电性能的影响
Influences of Zn and Mnions co-dopants on the optical and ferroelectric properties of BaTiO3 thin films
摘要
Abstract
Zn-Mn co-doped BaTiO3 films were fabricated on Si (100) and LNO/Si (100) substrates by a sol-gel procedure.In order to study the effects of different doping levels on the microstructure and ferroelectric phase of BaTiO3 thin films,-BTO films doped with Zn and Mn,respectively,were also investigated.Both the characterization of X-ray diffraction (XRD) and atomic force microscope (AFM) indicate uniform and dense films with average grain size under 30nm.By comparisons of the optical constant refractive index and extinction coefficient of BaTiO3 films in the wavelength from 400 nm to 700 nm,it was obtained that there is a change in the optical band gap due to the different amount of Zn and Mn added.Furthermore,a better defined P-E loop with a remnant polarization of 11.26 μC/cm2 shows that Zn and Mn dopanting play an essential role in ferroelectric improvement.关键词
钛酸钡薄膜/Zn-Mn共掺/溶胶-凝胶法/光学性质/铁电性能Key words
BaTiO3 thin films,Zn-Mn co-doping/sol-gel method,optical properties,ferroelectricity分类
通用工业技术引用本文复制引用
高婉丽,邓红梅,杨平雄,褚君浩..Zn-Mn共掺对BTO薄膜光学性质及铁电性能的影响[J].红外与毫米波学报,2012,31(3):193-196,4.基金项目
国家自然科学基金(60990312,61076060) （60990312,61076060）
上海市科委重点项目(10JC1404600) （10JC1404600）
Supported by National Natural Science Foundation of China(60990312,61076060) （60990312,61076060）
Key program of Science and Technology Commission of Shanghai Municipality (10JCl404600) （10JCl404600）
