2 coatings in the nature of semiconductor and photosensitive inks for use in the manufacture of optoelectronic devices; coating solutions consisting of semiconducting material mixed with additives to enhance crystallization, control the morphology, control the interface junction, and increase quantum yield of photovoltaic coatings for fabricating optoelectronic materials, namely, photovoltaic materials; binding agents for paints; binding preparations for paints; ceramic paints; paint for industrial equipment and machinery; powders of precious metals for use in painting, decorating, printing and art