NOVELTY - Material having metal containing compound (I), is claimed.    USE - The material is useful: as a semiconductor and a thin film; in optoelectronic device; in thin film material, which is useful in photovoltaic absorber and photovoltaic device (all claimed); and in transparent conductive material, devices and systems for energy conversion including solar cells. The material is useful for preparing semiconductor material including copper/silver/indium/gallium/sulfur/selenium (CAIGS) materials.    ADVANTAGE - The material: is more stable; allows to control the stoichiometry of the atoms in the semiconductors, preferably metal atoms; provides semiconductor layers with enhanced uniformity and greater property and with enhanced processability for solar cell production; makes solar cells and other products at relatively low temperatures; has enhanced solubility in organic solvents; and makes photovoltaic layers, semiconductors, and devices regardless of the morphology, architecture, or manner of fabrication of the semiconductors or devices.    DETAILED DESCRIPTION - Material having metal containing compound of formula ((Cu1-xAgx)u(In1yGay)v(S1-zSez)w) (I), is claimed.    x = 0.001-1, preferably 0.6-1;    y = 0-1;    z = 0-1, preferably 0.5-1;    u = 0.5-1.5, preferably 0.7-1.1;    v = 0.5-1.5, preferably 0.9-1.1; and    w = 1-3, preferably 1.8-2.4.    INDEPENDENT CLAIMS are included for:    (1) an optoelectronic device comprising the material;    (2) a thin film material made by a process comprising (a) providing one or more copper-silver-indium-gallium-sulfur/selenium (CAIGS), copper-silver-indium-sulfur/selenium (CAIS) or copper-silver-gallium-sulfur/selenium (CAGS) polymeric precursor compounds or inks; (b) providing a substrate (10); (c) depositing the compounds or inks onto the substrate; and (d) heating the substrate at a temperature of 20-650 degrees C, in an inert atmosphere, for producing a thin film material;    (3) a photovoltaic absorber made with the thin film material; and    (4) a photovoltaic device comprising the thin film material made by the process.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic representation of a solar cell.    Substrate (10)    Electrode layer (20)    Absorber layer (30)    Window layer (40)    Transparent conductive layer. (50)