Structural, electrical and optical properties of multilayer TiO2 thin films deposited by sol-gel spin coating

被引:109
作者
Khan, M. I. [1 ]
Bhatti, K. A. [2 ]
Qindeel, Rabia [3 ]
Althobaiti, Hayat Saeed [3 ]
Alonizan, Norah [3 ]
机构
[1] Univ Lahore, Dept Phys, Lahore 54000, Pakistan
[2] Univ Engn & Technol, Laser & Optron Ctr, Dept Phys, Lahore 54800, Pakistan
[3] King Saud Univ, Coll Sci, Dept Phys & Astron, Riyadh 11451, Saudi Arabia
关键词
Multilayer films; TiO2; XRD; Optoelectronics; PHOTOCATALYTIC DEGRADATION; ANATASE;
D O I
10.1016/j.rinp.2017.03.023
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Titanium dioxide (TiO2) multilayer thin films having 1, 2, 3 and 4 layers have been deposited on glass substrate by using "sol-gel spin coating" technique. TiO2 has anatase crystal structure and the grain size is increased when the coating layers have been increased, according to XRD results. Four point probe measures the electrical properties showed that the average resistivity is decreased with increasing the stacked layers. "Optical properties" of the films were measured by "UV-Vis spectroscopy" which showed the high transmittance in the visible region. The "optical band gap energies" of 1, 2, 3 and 4 layers of TiO2 films were 3.65, 3.60, 3.59 and 3.40 eV, respectively. These properties showed that the multilayer films of TiO2 can be enhanced the properties of optoelectronic devices. (C) 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license
引用
收藏
页码:1437 / 1439
页数:3
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