会员注册 会员登录 主办单位:国家建筑材料工业局技术图书馆 加为收藏 设为主页
1151web_logo
专注建材行业知识大数据
首页 外文期刊 中文期刊 图书馆 建材智网
您所在的位置:首页>>论文报告
Investigation of dielectric and optical properties of structurally modified bismuth ferrite nanomaterials
【文件类型】 【消费金额】1.8 【文章页数】6 【会员操作】  
【文章作者】Manzoor, Alina;Afzal, A. M.;Amin, N.;Arshad, M. Imran;Usman, M.;Rasool, M. N.;Khan, M. F.
【文章摘要】      We present the effects of size and oxygen defects on electrical and optical properties of nano crystalline bismuth ferrite (BiFeO3) with rhombohedral symmetry synthesized by solution evaporation method. The effects of oxygen vacancies on the behavior of system have been studied by annealing all samples under two different environments, air and oxygen. Single phase crystal structure was confirmed by X-Ray diffraction (XRD). The crystalline size calculated by Scherrer's formula falls in the range of 11-21 nm for air and 20-29 nm in case of oxygen annealing atmosphere. The crystalline size was confirmed by Transmission electron microscope (TEM). Dielectric response reveals that both dielectric constant and dissipation factor (tans) decrease with increase of frequency without depicting any peak. Optical studies showed that the system possesses an indirect energy gap whose value increases with increasing particle size. There is an evidence for the presence of intra band states in this system arising from defect states. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
【关 键 字】
【卷】42 【ISSUE】9 【ISSUEID】815C0073     【文章期份】2016    【发布日期】2016/8/11 17:04:15    点击率:1    打印    关闭
关于我们 公告信息 业务资费 广告合同 友情链接 购买阅读卡 在线订《水泥》
网络市场部:010-65761182 网络技术部:010-51164639  传真:010-65761182 Email:service@chinabmi.com
在线咨询:  
国家建筑材料工业局技术图书馆 京ICP备06011358号   京公网安备11010502024146