硅酸盐学报

液相自组装制备BaxSr1-xTiO3功能陶瓷薄膜

作者：谈国强程蕾苗鸿雁王艳

分类号：TB43；TQ134.1+1

出版年,卷(期):页码：2011,39(2):296-300

DOI：

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.

基金项目：

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。

作者简介：

副教授

参考文献：

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