Discussion of the dissertation of doctoral student " Abdul Rahman Dhafer Sabah"

In Arabic News Archive 2025-09-22 151 Vistors

Discussion of the dissertation of doctoral student " Abdul Rahman Dhafer Sabah"

The public discussion took place for the Doctoral student (Abdul Rahman Dhafer Sabah) at Anbar University, College of Science, Department of Physics, on 21, September, 2025, in Ibn Sina Hall, for his tagged thesis

" Functionalization of PPy/metal oxides hybrid for optoelectronic devices "

The discussion committee consisted of:

University of Technology - College of Applied Sciences - President	Prof. Dr. Raid Abdul Wahab Ismail
University of Anbar - College of Sciences - Member	Prof. Dr. Ismat Ramzi Abdul Ghafour
University of Anbar - College of Education for Pure Sciences - Member	Prof. Dr. Hamid Saleh Abtan
University of Anbar - College of Sciences - member	Assist. Prof. Dr. Mu'ayyad Mahmoud Mutlaq
University of Baghdad, College of Science - member	Assist. Prof. Dr. Amir Faisal Abdul Amir
University of Anbar - College of Sciences - Member and Supervisor	Prof. Dr. Mohammed Ghazi Hamid
University of Baghdad, College of Science	Prof. Dr. Issam Mohammed Ibrahim

Polypyrrole (PPy) nanofibers were synthesized using a hydrothermal technique and combined with graphene oxide (GO) and metal oxides like MnO?, CoO, and V?O? at varying ratios (20%, 40%, 60%). Spectroscopic analyses revealed increased optical absorption in the 310-350 nm range and a decrease in the optical bandgap with higher oxide concentrations. FE-SEM showed interconnected nanofiber structures. A maximum specific capacitance of 116.704 F/g was achieved for the 60% (GO-MnO?) composite in supercapacitor applications. Photonic measurements demonstrated that the 40% (GO-MnO?) composite exhibits a rapid response to light, underscoring its effective charge transfer capabilities, making it a promising candidate for photodetector applications.