青岛大学学报（自然科学版）2017，Vol.30Issue(2)：36-38,44,4.DOI:10.3969/j.issn.1006-1037.2017.05.08
0.5LaFe0.5Co0.5O3-Bi4Ti3O12薄膜的制备及电学性能的研究
The Study on Preparation and Electrical Properties of 0.5LaFe0.5Co0.5O3-Bi4Ti3O12 Thin Films
摘要
Abstract
0.5LaFe0.5Co0.5O3-Bi4Ti3O12 (0.5LFCO-BTO) thin films were prepared via a sol-gel process on (111)Pt/Ti/SiO2/Si substrates.The X-ray diffraction analysis indicates that the films have a single-phase layered perovskite structure.And scanning electron microscopy shows that the 0.5LFCO-BTO films exhibit a fine crystallinity without cracks, the grain size of the films is mainly distributed in the range from 100 to 400nm.At room temperature, 0.5LFCO-BTO films present good ferroelectric properties with the remnant polarization 2Pr of 48μC/cm2 and the coercive field 2Ec of 290 kV/cm, respectively.At frequency of 100kHz, the dielectric permittivity εr and dielectric loss tanδ are 218.7 and 0.015, respectively.关键词
0.5LFCO-BTO薄膜/溶胶-凝胶法/铁电/介电Key words
0.5LFCO-BTO thin films/Sol-gel process/Ferroelectric/Dielectric分类
数理科学引用本文复制引用
张灿,宿杰,冯林燕,李进,罗莉..0.5LaFe0.5Co0.5O3-Bi4Ti3O12薄膜的制备及电学性能的研究[J].青岛大学学报（自然科学版）,2017,30(2):36-38,44,4.基金项目
国家自然科学基金(批准号:51472131,11374169)资助 （批准号:51472131,11374169）
中国博士基金面上项目(批准号:2016M590617)资助 （批准号:2016M590617）
山东省博士后创新基金(批准号:201602036)资助. （批准号:201602036）
