Methods and articles for caigas aluminum-containing photovoltaics

This invention describes a way to make solar cells using special liquid-like chemical mixtures called polymeric precursors. These precursors contain specific elements like copper, indium, gallium, aluminum, sulfur, and selenium. The idea is to apply these liquid mixtures onto a surface using various printing or spraying techniques, which then form the active layer of a solar cell. The claims focus on a specific chemical formula for these precursor compounds.