TECHNOLOGY FOCUS - IMAGING AND COMMUNICATION - Preferred Components: The ink is a solution of the compound in an organic carrier. The ink further comprises a dopant or alkali dopant and one or more components comprising a surfactant, a dispersant, an emulsifier, an antifoaming agent, a dryer, a filler, a resin binder, a thickener, a viscosity modifier, an antioxidant, a flow agent, a plasticizer, a conductivity agent, a crystallization promoter, an extender, a film conditioner, an adhesion promoter or a dye. The ink further comprises one or more components comprising an additional indium containing compound, an additional gallium-containing compound, a molybdenum-containing compound, a conducting polymer, silver metal, silver selenide, silver sulfide, copper metal, indium metal, gallium metal, zinc metal, an alkali metal, an alkali metal salt, an alkaline earth metal salt, a sodium chalcogenate, a calcium chalcogenate, cadmium sulfide, cadmium selenide, cadmium telluride, indium sulfide, indium selenide, indium telluride, gallium sulfide, gallium selenide, gallium telluride, zinc sulfide, zinc selenide, zinc telluride, copper sulfide, copper selenide, copper telluride, molybdenum sulfide, molybdenum selenide and/or molybdenum telluride.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preparation (Disclosed): Preparation of (I) comprises contacting a metal compound of formula (M1b(ER1)3) and a metal compound of formula (M1a(ER2)) to give a polymeric compound of formula (M1a(ER2)(ER1)M1b(ER1)2) (representative of (I)).R1, R2 = R.Preferred Components: (I) is copper-silver-indium-gallium-sulfur/selenium (CAIGS), copper-silver-indium-sulfur/selenium (CAIS) or copper-silver-gallium-sulfur/selenium (CAGS) precursor compound. (I) is: deficient or enriched in the quantity of a Group 11 atom. (I) further comprises three or more repeating units of formula (M1b(ER)(ER)), or three or more repeating units of formula (M1a(ER)(ER)). (I) is converted to an inorganic material at a temperature below 300 degrees C and an oil at a temperature below 100 degrees C. (I) has 132 metal alloy repeating units e.g. of formulae (Ag(Se-sec-butyl)4In), (Ag(0.6)(Se-sec-butyl (Bu))(3.6)In), (Ag(0.9)(Se-sec-Bu)(3.9)In), (Ag(1.5)(Se-sec-Bu)(4.5)In), (Ag(Se-sec-Bu)3(Se-tert-Bu)In), (Ag(Se-sec-Bu)4Ga), (Ag(0.8)(Se-sec-Bu)(3.8)In(0.2)Ga(0.8)), (Ag(Se-sec-Bu)4In(0.3)Ga(0.7)), (Ag(Se-sec-Bu)4In(0.7)Ga(0.3)), (Ag(Se-sec-Bu)4In(0.5)Ga(0.5)), (Ag(Se-sec-Bu)3(Se-tert-Bu)Ga(0.3)In(0.7)), (Ag(S-ter-Bu)(S-iso-propyl(Pr))In(S-iso-Pr)2), (Ag(S-tert-Bu)2In(S-tert-Bu)2), (Ag(S-tert-Bu)(S-n-Bu)In(S-n-Bu)2), (Ag(Se-tert-Bu)(Se-n-Bu)In(Se-n-Bu)2), (Ag(S-tert-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(Se-tert-Bu)(S-tert-Bu)Ga(S-tert-Bu)2), (Ag(Se-tert-Bu)2Ga(Se-tert-Bu)2), (Ag(S-tert-Bu)2Ga(S-tert-Bu)2), (Ag(Se-tert-Bu)2In(Se-tert-Bu)2), (Ag(Se-tert-Bu)(Se-iso-Pr)In(Se-iso-Pr)2), (Ag(Se-tert-Bu)(S-sec-Bu)In(S-sec-Bu)2), (Ag(Se-tert-Bu)(Se-iso-Pr)Ga(Se-iso-Pr)2), (Ag(S-ter-Bu)(S-iso-Pr)Ga(S-iso-Pr)2), (Ag-(Se-tert-Bu)(Se-n-Bu)In(Se-n-Bu)2), (Ag(S-tert-Bu)(S-iso-Pr)In(S-iso-Pr)2), (Ag(S-n-Bu)(S-tert-Bu)In(S-tert-Bu)2), (Ag(Se-n-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(S-tert-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(Se-sec-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(Se-tert-Bu)(Se-iso-Pr)In(Se-iso-Pr)2), (Ag(Se-tert-Bu)(S-sec-Bu)In(S-sec-Bu)2), (Ag(Se-tert-Bu)(Se-iso-pro)Ga(Se-iso-Pr)2), (Ag(S-tert-Bu)(S-iso-Pr)Ga(S-iso-Pr)2), (Se-n-Bu)(0.7 In, 0.3 Ga)(Se-n-Bu)2), ((0.9 Ag)(0.9 S-tert-Bu)(S-tert-Bu)(0.85 In,0.15 Ga)(S-tert-Bu)2), ((0.75 Ag)(0.75 S-tert-Bu)(S-n-Bu)(0.80 In,0.20 Ga)(S-n-Bu)2), ((0.8 Ag)(0.8 Se-tert-Bu)(Se-n-Bu)(0.75, In, 0.25 Ga)(Se-n-Bu)2) and ((0.98 Ag)(0.98 Se-tert-Bu)(S-tert-Bu)2(0.600, In,0.400 Ga).    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: (I) is a linear, branched, cyclic, an alternating copolymer, a block copolymer and/or a random copolymer. EXAMPLE - Indium (In)(selenium(Se)-sec-butyl(Bu))3 (0.64 g), silver(Ag)Se-sec-Bu (0.15 g) and copper(Cu)Se-sec-Bu (0.12 g) were charged in an inert atmosphere glovebox, a Schlenk tube. Benzene (15 ml) was added, and the reaction mixture was stirred at 25 degrees C for 30 minutes. An orange solution was obtained. This solution was filtered through a filter cannula and the mother liquor was collected. The solvent was then removed under dynamic vacuum to give (copper(Cu)(0.5)silver(Ag)(0.5)(Se-sec-Bu)4indium(In)) (0.88 g (97%)).