Dr. Muhammad Ghafar is a lecturer at the Department of Physics (DPHY), Faculty of Health and Science (FSCH) at Koya University whoo is currenly engaged with Postdoctoral research at the University of Santiago de Compostela in Spain. Recently an international scientiic journal has published his research article. The artike is entitled “Structural and Optical Properties of Cadmium Sulfide Thin Films on Flexible Polymer Substrates by Chemical Spray Pyrolysis Technique”, Journal of Materials Science: Materials in Electronics Volume 28 / 2017. Dr. Muhammad with his manor in Polymer Solar Cell points out that “The ultimate aim of this investigation is to use Plastic (Polyimide) as a substrate for thin-film solar cells”.
The content and summary of his research consists of “Cadmium sulfide (CdS) films were deposited on polyamide (PI) plastic substrate by chemical spray pyrolysis technique at substrate temperature in the range (300–375 °C) in 25 °C steps. The effects of substrate temperature on the structural and optical properties of the films were studied.
Characterization of structural properties was carried out by X-ray diffraction (XRD). The XRD results confirmed proper phase formation of the CdS structure. These also revealed that the CdS films have a hexagonal structure and the crystallite size increased with increasing film temperature. The root mean square roughness of the films was measured by atomic force microscopy.
This quantity increased as the film temperature did. The optical transmission measurements by UV–Vis spectrophotometer determined the energy gap of the CdS films on the PI plastic substrate. The optical band gap values of CdS thin films slightly increased as the film temperature did, and it was found to be in the range of 2.42–2.48 eV.”
The intriguing point which the researcher has noticed in his research is “The deposited Cadmium sulfide (CdS) films on PI plastic substrate make them a suitable candidate as a window layer in thin-film solar cells.”
Dr. Muhammad’s research can be of great help and in Kurdistan’s contemporary issues, particularly in Energy Sector. This research paper is classified within the field of renewable energy (Green Energy).
In this regard, Dr. Muhammad reiterates that he is going to develop this research and carry out other research about it.
This research took three months of hard work and participated by the followings:
Information about the scientific research:
Name: Journal of Material Science; Materials in Electronics
Place of issuance: Springer (Germany)
The research has been published in volume 1-7, 2017
Magazine’s characteristic: Material science and Polymer thin Film Solar Cell
Impact Factor: 1.8
Dr. Muhammad Ghafar Faraj
Major: Solar Energy
Number of Published researches: 32
He has been a lecturer at Koya University for 13 years.
Workplace: Department of Physics-faculty of Health and Science
Dr. Muhammad’s formal page, click here.
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