Transparent Conductive Oxides

This lecture covers the evolution of Transparent Conductive Oxides (TCOs) from individual binary oxides to multi-compound and alloy mixtures, focusing on N-type and P-type TCOs, conventional TCO composition space, and the challenges and advantages of using TCOs in optoelectronic applications. It also discusses amorphous TCOs, their properties, and applications, such as IGZO for flexible OLED displays. Furthermore, it explores antireflection coatings, their principles, materials, and design considerations for reducing surface reflections in solar cells. The lecture delves into the relationship between refractive index and carrier density in TCOs, work function considerations at junctions, light trapping techniques using textured TCOs, and examples of rough TCO textures achieved through deposition and etching processes.