A study conducted to investigate the fabrication of organic solar cells based on PC61BM:PCPDTBT using the Physical Vapor Deposition (PVD) method. The research carries out a number of analyses for structural evaluations (XRD and ESEM), compositional change (XPS and FTIR), and functional assessment (absorption and I-V testing), with the goal of understanding the materials' properties, their behavior during deposition and the resulting characteristics of the fabricated solar cells. While demonstrating promise, the PVD method faces challenges in the maintenance of electrical attributes during vaporization, and the need for further optimization. The findings highlight both the advantages and limitations of the method and point the way toward achieving optimal outcomes in the manufacture of organic solar cells using PVD. The main scientific contribution of this manuscript lies in the application of the PVD method for fabricating PCPDTBT. The final device features a working solar cell device made of the materials discussed above with Cell size of 0.0026 m m 2 , cell efficiency of about 0.18 % and thickness of 309 nm-400nm. These results showcasing the possibility of building and fabricating organic cells with the PVD method.

Silicon-based photovoltaic (PV) cells are currently the most prevalent and cost-effective solution for solar energy generation. Given their dominance in the market and the extensive research dedicated to them, they are ideal targets for efficiency enhancement through innovative yet straightforward methods. This study explores the potential for improving the efficiency of these cells by managing the PV’s temperature using an infrared (IR) filter. The filter allows photons that can generate free electron–hole pairs to pass while reflecting those with wavelengths below the semiconductor bandgap, which otherwise contribute to performance degradation. Various techniques were applied, including I–V analysis, impedance measurements, and atmospheric scanning electron microscope (Air-SEM) observations, to examine the temperature’s impact on silicon PVs. By integrating IR filters, the results showed a 3% increase in the fill factor and a temperature reduction of approximately 10 degrees Celsius. These findings highlight the potential of this cooling approach for silicon cells, which can enhance the cell’s longevity and efficiency, paving the way for future industrial applications.