液相自组装制备BaxSr1–xTiO3功能陶瓷薄膜  

Preparation of Ba_xSr_(1–x)TiO_3 Functional Ceramic Film by Liquid Self-Assembly Technology

作　　者：谈国强[1] 程蕾[1] 苗鸿雁[1] 王艳[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：《硅酸盐学报》2011年第2期296-300,共5页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(50872077);陕西科技大学科研创新团队基金(TD09–05);陕西科技大学研究生创新基金(SUST–A04);陕西省自然科学基础研究(SJ08E102,SJ08E104)资助项目

摘　　要：以Sr(NO3)2,Ba(NO3)2,(NH4)2TiF6和H3BO3作为原料,采用自组装单分子膜(self–assembled monolayers,SAMs)技术以及利用紫外光修饰技术对十八烷基三氯硅烷(C18H37SiCl3,OTS)单分子膜进行官能团改性,在氧化铟锡(indium tin oxide,ITO)玻璃基板上成功制备了BaxSr1–xTiO3功能陶瓷薄膜。通过动态/静态接触角仪测量了SAMs功能化的ITO玻璃基板表面与水的接触角,探讨功能化ITO玻璃基板在紫外光照射前后的润湿情况。通过X射线衍射、能量色散光谱和扫描电子显微镜等测试方法分析了制备的BaxSr1–xTiO3功能陶瓷薄膜的物相组成、微区结构和形貌。结果表明:改性的SAMs功能化ITO玻璃基板在50℃的前驱溶液中沉积18 h后,在600℃煅烧晶化2 h,可以成功制备出纯相BaxSr1–xTiO3功能陶瓷薄膜,薄膜的颗粒均一,形貌均匀。Using strontium nitrate,barium nitrate,ammonium hexafluorotitanate and boric acid as raw materials,the functional groups of octadecyltrichlorosilane（C18H37SiCl3,OTS） monolayer were modified via self–assembled monolayers（SAMs） technology and ultraviolet modification technique,and the BaxSr1–xTiO3 functional ceramic film on the indium tin oxide（ITO） glass substrate was prepared successfully.The contact angle between the surface of the SAM functionalized ITO glass substrate and water was measured by dynamic/static contact angle instrument in order to study the wetting conditions of the substrates before and after ultraviolet light irradiation.The phase composition,microstructure and morphology of the prepared BaxSr1–xTiO3 functional ceramic thin films were analyzed by X-ray diffraction,energy dispersive spectroscopy and scanning electron microscopy.The results indicate that pure phase BaxSr1–xTiO3 functional ceramic film can be prepared on the SAMs functionalized ITO glass substrate successfully after depositing on the surface of ITO glass substrate in the precursor at 50 ℃ for 18 h,and then crystallized after calcined at 600 ℃ for 2 h.The film particles are uniform,and with homogeneous morphology.

关 键 词：液相自组装 钛酸锶钡 自组装单分子膜技术 接触角 氧化铟锡玻璃 

分 类 号：TB43[一般工业技术] TQ134.11[化学工程—无机化工]