The Scientific Committee in the Physics Department organized the third academic Seminar for this year 1437/1438 AH, entitled "Characterization of Ag–Al Alloy Thin Film on Plastic Substrate by Screen Printing for Solar Cell Back Contact Application."
Dr. Muhammad Khalil Muhammad Ali, Assistant Professor in the Physics Department at Al Imam University, presented the Seminar on Tuesday, 02/01/1438 AH, corresponding to 11/01/2016 AD, at 10:00 am, for half an hour. It was followed by questions and discussions by the audience.
The speaker started the Seminar by giving an idea about the method of thin film deposition used in this research. He then talked about testing these samples using several techniques to determine the crystal and chemical structure. In addition, he talked about the description of the surface printed films and the study of the electrical properties and the suitability of these thin films to be used as a solar cell back contact. Faculty members and students of the Department were involved in the discussion that tackled several points, including how to make these samples and their profitability.
This Seminar falls within a series of seminars held every two weeks by the Scientific Committee in the Physics Department and presented by faculty members in the Department and researchers from other research sectors. Dr. Raed Al-Hathlool, Head of the Scientific Committee in the Department, supervises these series of seminars and Dr. Jaber Al-Ghoul, Member of the Scientific Committee, coordinates and manages them. They aim at motivating scientific research environment in the Department and informing its members of the latest advances in physics in various fields.
It is noteworthy to mention that attending these seminars is open for all University members, including faculty and staff members as well as students.
For more information about the Seminar, please check out the abstract below:
With regards,
The Scientific Committee of the Physics Department
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Abstract:
In this research, thin films of 150 – 900 nanometer were deposited from a Silver (Ag) and Aluminum (Al) alloy on plastic substrate of (Polyethylene Terephthalate (PET)) using a screen printing deposition technique at room temperature. The alloy was prepared by mixing silver solution and aluminum solution in fixed proportion of 70:30%, respectively with three viscosity values of silver solution: Pa•S100, Pa•S140, Pa•S 120, and fixing the viscosity of aluminum solution (Pa•S 420) allowing the thickness change of the printed thin film on the plastic substrate as a result of the changes in viscosity of the resulting mixture. The produced films were heated up to 200°C for 45 minutes, then they were tested using several techniques to determine the crystal and chemical structure, as well as the description of the surface printed film and the study of the electrical properties and the suitability of it to be used as a solar cell back contact, in addition to calculating the exertion on these films which explained a significant increase related to the thickness increase of the deposited alloy as a thin film.
