NDLI: Microstructures, optical and electrical properties of TiO$_{2}$ thin films prepared by unconventional sol

Content Provider	Springer Nature Link
Author	Devi, Maya Panigrahi, Manas R. Singh, U. P.
Copyright Year	2014
Abstract	Band gap lowering in TiO$_{2}$ is usually done by adding impurity to it. In this paper a new approach is adopted to make TiO$_{2}$ thin films by unconventional sol–gel method starting with TiO$_{2}$ powder reagent. The prepared gel is deposited on the microscopic glass slide by doctor blade technique. The prepared films were then subjected to X-ray diffraction for structural and microstructural analysis. Different optical parameters like, thickness, refractive index, extinction coefficient, transmittance and absorbance etc. are calculated and finally band gap of the samples are estimated and are presented in this work. Both the refractive indices and band gap are found to be lower than that reported earlier. Scanning electron microscope image shows dense and uniformly distributed TiO$_{2}$ particles. The quality and novelty of this paper is that, the micro size nano thick film is prepared from powder reagent unlike other published papers and novelty lies in its very low band gap as direct transition is more favorable for TiO$_{2}$ nanoparticles in anatase phase.
Starting Page	1186
Ending Page	1191
Page Count	6
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	26
Issue Number	2
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2014-11-23
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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