液相自组装法制备铁酸铋薄膜的研究  

Synthesis of BiFeO_3 Thin Films by Liquid Phase Self-assemble Method

作　　者：谈国强[1] 宋亚玉[1] 苗鸿雁[1] 博海洋[1] 夏傲[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,西安710021

出　　处：《人工晶体学报》2010年第2期361-364,共4页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.50672055;50872077);国家科技支撑计划项目(No.2006BAF02A28)

摘　　要：采用液相自组装法成功制备出铁酸铋（BiFeO3）薄膜,并采用XRD、SEM和VSM等测试方法对BiFeO3薄膜进行了表征。研究了功能化的自组装单分子层（SAMs）表面对BiFeO3薄膜成核和生长的影响,以及沉积温度对铁酸铋薄膜的形成和微观形貌的影响。结果表明：功能化的SAMs表面上薄膜与基底结合牢固,结构致密均一;沉积温度在60-70℃之间,薄膜表面比较平整均一,当沉积温度高于70℃,薄膜表面出现多晶聚集体现象。BiFeO3 thin films were prepared by liquid phase self-assemble method.The crystal phase composition,microstructure and topography of the as-prepared films were characterized by X-ray diffraction（XRD）,scanning electron microscopy（SEM） and VSM.The effect of irradiated OTS-SAMs and the deposition temperature on the formation of surface morphology were studied.The results indicated that uniform BiFeO3 thin films with densely packed crystallites formed onto the OH-functionalized SAMs at low temperature.The smooth and uniform films could be obtained at the temperture of 60-70 ℃.while deposition temperature is above 70 ℃,the phenomenon of polycrystalline aggregates appeared.

关 键 词：自组装单分子层 自组装 铁酸铋薄膜 

分 类 号：TB43[一般工业技术]