中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 22 No. 12 December 2012 |
（1. Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt;
2. Physics Department, Faculty of Science, Ain Shams University, Cairo, Egypt;
3. Physics Department, Faculty of Science, South Valley University, Qena 83523, Egypt;
4. Phys Dep, Fac of Appl Med Sci Turabah, 21995, Taif University, KSA）
Abstract:Three thicknesses of TiO2 films, 174, 195, and 229 nm, were deposited onto quartz substrates by sol-gel spin coating method. The as-deposited thin films were characterized by nano-crystallite with different sizes (19-46 nm) and relatively high porous structure. Optical constants were determined and showed the lowest refractive index of 1.66 for the as-prepared films that ever reported till now. Obtained results were discussed through current theoretical ideas.
Key words: TiO2 films; optical properties; nanostructure; electron microscopy; thin films; spin coating technique; renewable energy
