COPPER INDIUM GALLIUM SULFIDE/SELENIDE INKS, LAYERS, AND FILMS AND PROCESSES FOR PREPARING COATED SUBSTRATES AND PHOTOVOLTAIC DEVICES

摘要

This invention relates to processes for preparing films of copper indium gallium sulfide/selenides (CIGS/Se) on substrates via inks comprising CIGS/Se microparticles and a plurality of particles. This invention relates to inks, coated layers, and film compositions. Such films are useful in the preparation of photovoltaic devices. This invention also relates to processes for preparing coated substrates and for making photovoltaic devices.