Lecture
This lecture covers the optical properties of solar cells, focusing on absorption and generation profiles. It discusses concepts such as refractive index, extinction coefficient, reflection, interference in thin films, antireflection coatings, reduction of reflection by texture, and the law of Lambert-Beer-Bouguer. The lecture also delves into the dispersion of refractive index and extinction coefficient, absorption coefficient, and the generation rate in solar cells. It explains the relationship between absorption length, absorption coefficient, and the generation profile in the device. Additionally, it explores the impact of texture, acid etching, and antireflection coatings on reducing reflection in solar cells.