"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Magnesium doped titania (TiO2) thin films: deposition, structural, morphological and optical properties

TAYYABA ZAFAR1,2, BUSHRA BARI1,2, KHALID ALAMGIR1, SADIA KHALID1,3, MUHAMMAD ARSHAD2, MUHAMMAD NAEEM ANJUM2,*

Affiliation

  1. National Institute of Vacuum Science and Technology (NINVAST), National Center for Physics, Shahdra Valley Road, Islamabad, 44000, Pakistan
  2. Department of Physics, Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
  3. Department of Physics, Bahauddin Zakariya University Multan, 60800, Pakistan

Abstract

Pure and magnesium (Mg) doped titania (TiO2) thin films were prepared on glass substrates by sol-gel method with dopant concentration varying up to 9.39 atomic % (metal base). The morphological, structural and optical properties were investigated by field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), X-ray diffraction (XRD) and ultraviolet–visible spectroscopy (UV–VIS). Results revealed that the films were highly crystalline and consist of brookite phase of titania, without any other phase such as magnesium oxide. Microstructures showed shrinkage cracking and decrease in root mean square resistance with increase in doping concentration. The optical transmittance has shown a decrease due to scattering of light through cracks and increases with increase in doping concentration. Moreover, the increase in band gap of titania has been observed from 1.81 eV to 2.52 eV..

Keywords

Titania Thin films, Mg doping, Band gap, Sol gel spin coating.

Citation

TAYYABA ZAFAR, BUSHRA BARI, KHALID ALAMGIR, SADIA KHALID, MUHAMMAD ARSHAD, MUHAMMAD NAEEM ANJUM, Magnesium doped titania (TiO2) thin films: deposition, structural, morphological and optical properties, Optoelectronics and Advanced Materials - Rapid Communications, 12, 5-6, May-June 2018, pp.337-341 (2018).

Submitted at: Jan. 4, 2017

Accepted at: June 7, 2018