Influence of temperature on structural and optical properties of nano-crystalline TiO2 films prepared by Sol-Gel dip-drive coating

被引:0
|
作者
Sakthivel, K. [1 ]
Venkatachalam, T. [2 ]
机构
[1] Hindusthan Coll Engn & Technol, Dept Phys, Coimbatore 641032, Tamil Nadu, India
[2] Coimbatore Inst Technol, Dept Phys, Coimbatore 641014, Tamil Nadu, India
来源
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2013年 / 7卷 / 7-8期
关键词
TiO2; Sol-Gel dip-drive coating; Band gap; Band structure; Effective mass of electrons and holes; THIN-FILMS;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Nanocrystalline TiO2 thin films have been deposited on well cleaned glass substrates by Sol-Gel dip drive technique. The films have been prepared at pH = 9 and the prepared films are annealed at three distinct temperatures (350 degrees C, 450 degrees C, and 550 degrees C) for one hour. The prepared films are characterized by XRD, EDAX, SEM and UV-Vis Spectrophotometer. The structural studies carried out reveals that the pristine films are amorphous in nature. The annealed films have been observed to be nanocrystalline in nature and the crystallinity has been observed to improve on annealing. The transmittance and absorbance spectra have shown that the films are transparent and band gap of the films are of the order of 3.26 eV.
引用
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页码:516 / 520
页数:5
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