Study Of Structure And Electro-optical Characteristics Of Indium Tin Oxide Thin Films | 101309
ISSN: 2576-1463

Innovative Energy & Research
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Study of structure and electro-optical characteristics of indium tin oxide thin films

Joint Event on 2nd International Conference on Renewable Energy and Resources & Energy Materials and Fuel Cell Research

Najla Mohammed Khusayfan

University Of Jeddah, Saudi Arabia

Posters & Accepted Abstracts: Innov Ener Res

DOI: 10.4172/2576-1463-C2-006

ITO thin films were prepared by electron beam evaporation of ceramic ITO target. The films were subsequently annealed in an air atmosphere at the temperatures 300 degrees C and 600 degrees C in order to improve their optical and electrical properties. The crystal structure and morphology of the films are investigated by X-ray diffraction and scanning electron microscope techniques, respectively. The films exhibited a cubic structure with the predominant orientation of growth along (222) direction and the crystallite size increases by rising annealing temperature. Transparency of the films, over the visible light region, is increased by annealing temperature. The resulting increase in the carrier concentration and in the carrier mobility decreases the resistivity of the films due to annealing. The absorption coefficient of the films is calculated and analyzed. The direct allowed optical band gap for as-deposited films is determined as 3.81 eV; this value is increased to 3.88 and 4.0 eV as a result of annealing at 300 degrees C and 600 degrees C, respectively. The electrical sheet resistance is significantly decreased by increasing annealing temperature, whereas the figure of merit is increased.

Najla Mohammed Khusayfan received her PhD in 2007 in Solid State Physics from King Abdulaziz University, and in 2016 she was Head of Physics Department at the University of Jeddah. In 2018, she obtained a degree as a professor in experimental solid state physics from King Abdulaziz University. She has published more than 21 papers in the field of Solid State Physics.

E-mail: [email protected]