Microwave-assisted sol-gel synthesis and optical property of TiO2 thin film

被引：0
|
作者：
Yang, Huaming [1 ]
Zhang, Xiangchao
Tao, Qiufen
Tang, Aidong
机构：
[1] Cent S Univ, Sch Resources Proc & Bioengn, Dept Inorgan Mat, Changsha 410083, Peoples R China
[2] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Peoples R China
来源：
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2007年 / 9卷 / 08期
关键词：
titanium dioxide (TiO2); thin films; microwave heating; optical property;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium dioxide (TiO2) thin film has been successfully synthesized deposited on glass substrates by the sol-gel dip-coating method using microwave heating. The precursor and TiO2 film were characterized using thermogravimetric and differential scanning calorimetric (TG-DSC), X-ray diffraction (XRD), atomic force microscopy (AFM) and UV-visible (UV-vis) absorption spectra analysis technology. The preparation of the precursor sols and TiO2 film were described in detail. The XRD result demonstrates that the TiO2 film is well crystallized and consists of anatase phase only with (101) plane. The morphology of the nanoparticles of TiO2 thin film is spherical shape with grain size of 68.2 nm in average diameter and the surface of the TiO2 film is smooth. There is a strong wide UV absorption band around 387 nm for the prepared TiO2 film. The calculated band gap (Eg) value of the TiO2 thin film by microwave heating is about 3.4 eV for direct transition and about 3.2 eV for indirect transition, respectively. The microwave heating offers a novel process route in treating thin film for commercial applications.
引用
收藏
页码：2493 / 2497
页数：5
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