Lecture
This lecture covers the fundamentals and processes for photovoltaic devices, focusing on the standard silicon solar cell processing. Topics include the market share of cell technologies, the features of Al-BSF technology, the BSF design, the diffusion process, the antireflection coating, screen printing, firing, and measuring/sorting of solar cells. The instructor discusses the challenges and advancements in the standard cell process, such as the impact of temperature on diffusion, the formation of the back-surface field during firing, and the importance of contact formation for efficient current extraction. Various techniques like etching, diffusion, and firing are explained in detail, highlighting the critical parameters influencing cell efficiency.