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الجامعة الأسلامية

الجامعة الاسلامية

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The Department of Radiological Technologies holds a scientific symposium entitled: “Fabrication of Contrasting Junction from Cu2ZnSnS4 Composite Films by Pulsed Laser Deposition for Sensor Applications”

As part of its scientific activities, the Department of Radiological Technologies at the Faculty of Medical Technologies at the Islamic University of Najaf held a scientific symposium entitled: “Manufacture of a differentiated junction from Cu2ZnSnS4 films by pulsed laser deposition for sensor applications”, for the teacher Dr. Ali Jabbar Al-Abadi, on Sunday 13 June 2021.

The seminar included the following topics:

1- Preparation of thin films of the quaternary semiconductor compound Cu2ZnSnS4 deposited on n-type and p-type silicon substrates for the purpose of fabricating anisotropic and symmetrical junctions as an application for solar cells and photosensitizers.

2- Knowing the type of charge carriers for the quaternary compound Cu2ZnSnS4 and for all the prepared models by examining the models using the Hall effect device.

3- The pulsed laser deposition technique was used, which is a modern and professional technique used to evaporate materials with a high melting point, including the compound used in the research, and this technique has proven its efficiency in depositing thin films within nanoscales.

4- 10 models of dissimilar and symmetrical junctions were manufactured using silicon substrates and thin films of Cu2ZnSnS4 were deposited on them, and then electrical measurements were made on them using a system that measures current and voltage in the case of darkness and light.

5- Knowing the sensitivity of the prepared models in the case of darkness and light, and which is the best efficiency in order to be used as an alternative energy, a solar cell or a photo sensor.

6- The economic feasibility of this work is to manufacture high-efficiency solar cells from the quaternary semiconductor compound Cu2ZnSnS4 and use it as renewable or alternative energy at low cost and high production efficiency. (HTH)