The Biotechnology Department awarded a master's degree to the graduate student "Dhefaf Raheem Rasan"
The Biotechnology Department awarded a master's degree to the graduate student "Dhefaf Raheem Rasan" for her thesis titled...
“Evaluation of some immunological markers in Helicobacter Pylori infection
“
The defence was held in the late Professor Ibrahim Al-Jawadi Hall in the building of classrooms and laboratories in the department, and the examination committee was composed of...
- Professor Dr. Ali Abdulrahman Taha
- Department of Applied Sciences / Biotechnology Branch Chair
- Assistant Professor Dr. Aseel Shaker Mahmoud
- University of Baghdad / College of Science Member
- Assistant Professor Dr. Suhad Adnan Ahmed
- Department of Applied Sciences / Biotechnology Branch Member
- Professor Dr. Majid Sukhi Jabir
- Department of Applied Sciences / Biotechnology Branch Member and Supervisor
This thesis presents an in-depth investigation into the physical properties of SnO2- based photoanode electrodes used in solar cells, prepared using various SnO2 concentrations. The study involves a comprehensive analysis of the structural, morphological, and chemical properties of the materials using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and thermogravimetric analysis (TGA). The results show that the crystallinity and lattice parameters of the materials are consistent across different SnO2 concentrations, while the particle size and surface characteristics vary with SnO2 concentration. The photoluminescence (PL) spectroscopy analysis reveals a decrease in intensity with higher SnO2 concentrations, indicating a weaker interaction between the dye and SnO2. The performance characteristics of the Dye-sensitized Solar Cells (DSSCs) are analyzed in terms of short-circuit current density (Jsc), open-circuit voltage (Voc), fill factor (FF), and efficiency (η). The results show that the cell with the highest SnO2 concentration exhibits the best efficiency. This study provides valuable insights into the physical and chemical properties of SnO2 nanoparticles and their potential applications in solar energy conversion. The experimental results constitute a comprehensive evaluation of the performance and characteristics of the photoanode electrodes in solar cells, contributing to the ongoing research in renewable energy technologies.
