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; 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; and 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 - Preferred Components: (I) is copper-silver-indium-gallium-aluminum-sulfur/selenium (CAIGAS), silver-indium-gallium-aluminum-sulfur/selenium (AIGAS) or copper-indium-gallium-aluminum-sulfur/selenium (CIGAS) precursor compound. (I) is deficient or enriched in a Group 11 atom. (I) is converted to an inorganic material at below 300 degrees C, preferably below 100 degrees C. (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) has any one of the repeating units of formulae (Cu(0.7)Ag(0.25)(Se-sec-butyl (Bu))(3.95)In(0.3)Ga(0.4)Al(0.3)), (Ga(0.5)Al(0.5)(Se-sec-Bu)(3.9)Cu(0.5)Ag(0.4)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4In(0.7)Al(0.3)), (Cu(0.9)In(0.5)Ga(0.25)Al(0.25)(Se-sec-Bu)(3.9)), (Cu(Sec-Bu)4Al), (Cu(0.9)(Se-sec-Bu)(3.9)Ga(0.7)Al(0.3)), (Cu(0.9)(Se-sec-Bu)(3.9)In(0.8)Al(0.2)), (Ag(Se-sec-Bu)4Al), (Ag(Se-sec-Bu)4In(0.7)Al(0.3)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4(In,Ga,Al)), (Cu(0.7)Ag(0.1)(Se-sec-Bu)(3.8)Ga(0.2)In(0.7)Al(0.1)), (Cu(0.8)Ag(0.2)(Se-sec-Bu)4(In,Ga,Al)), (Cu(0.2)Ag(0.8)(Se-sec-Bu)4(In,Ga,Al)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4Ga(0.45)ln(0.5)Al(0.05)), (Cu(0.85)Ag(0.1)(Se-sec-Bu)(3.95)Ga(0.15)In(0.7)Al(0.15)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4Ga(0.3)In(0.7)Al(0.01)), (Cu(0.8)Ag(0.05)(Se-sec-Bu)(3.85)Ga(0.3)In(0.3)Al(0. 4)), ((Cu,Ag)(Se-tert-Bu)(Se-n-Bu)(In,Ga,Al)(Se-n-Bu)2), ((Cu,Ag)(S-tert-Bu)(S-iso-propyl(Pr))(In,Ga,Al)(S-iso-Pr)2), (Cu(1.40)Ag(0.10)(Se-tert-Bu)(1.5)(Se-n-Bu)(In(0.7)Ga(0.25)Al(0.05))(Se-n-Bu)2), (Cu(1.30)Ag(0.10)(S-tert-Bu)(1.4)(S-n-Bu)(In(0.85)Ga(0.1)Al(0.05))(S-tert-Bu)2), (Cu(1.20)Ag(0.10)(Se-tert-Bu)(1.3)(S-n-Bu)(In(0.80)Ga(0.15)Al(0.05))(S-n-Bu)2), (Cu(1.10)Ag(0.10)(Se-tert-Bu)(1.2)(Se-tert-Bu)(1.2)(Se-tert-Bu)(In(0.75)Ga(0.20)Al(0.05))(Se-n-Bu)2), (Cu(1.05)Ag(0.05)(S-tert-Bu)(1.1)(Se-tert-Bu)(In(0.75)Ga(0.20)Al(0.1))(Se-tert-Bu)2), (Cu(0.90)Ag(0.10)(Se-tert-Bu)(Se-n-Bu)(In(0.7)Ga(0.25)Al(0.05))(Se-n-Bu)2), (Cu(0.85)Ag(0.10)(S-tert-Bu)(0.95)(S-tert-Bu)(In(0.85)Ga(0.1)Al(0.05))(S-n-Bu)2), (Cu(0.80)Ag(0.20)(S-tert-Bu)(Sn-Bu)(In(0.80)Ga(0.15)Al(0.05))(S-n-Bu)2), (Cu(0.75)Ag(0.20)(Se-tert-Bu)(0.95)(Se-n-Bu)(In(0.75)Ga(0.20)Al(0.05))(Se-n-Bu)2), (Cu(0.70)Ag(0.30)(S-tert-Bu)(Se-tert-Bu)(In(0.7)Ga(0.2)Al(0.1))(Se-tert-Bu)2), (Cu(0.65)Ag(0.30)(Se-tert-Bu)(0.95)(S-tert-Bu)(In(0.6)Ga(0.3)Al(0.1))(S-tert-Bu)2), (Cu(0.60)Ag(0.40)(Se-tert-Bu)2(In(0.5)Ga(0.4)Al(0.1))(Se-tert-Bu)2), (Cu(0.50)Ag(0.50)(Se-tert-Bu)(S-n-Bu)(In(0.5)Ga(0.4)Al(0.1))(Se-n-Bu)2), (Cu(0.30)Ag(0.65)(S-tert-Bu)(0.95)(S-tert-Bu)(In(0.5)Ga(0.4)Al(0.1))(S-tert-Bu)2), (Cu(0.30)Ag(0.70)(S-tert-Bu)(S-n-Bu)(In(0.4)Ga(0.5)Al(0.1))(S-n-Bu)2), (Cu(0.20)Ag(0.75)(Se-tert-Bu)(0.95)(Se-n-Bu)(In(0.4)Ga(0.5)Al(0.1))(Se-n-Bu)2), (Cu(0.20)Ag(0.80)(S-tert-Bu)(Se-tert-Bu)(In(0.3)Ga(0.1)Al(0.6))(Se-tert-Bu)2), (Cu(0.10)Ag(0.85)(Se-tert-Bu)(0.95)(S-tert-Bu)(ln(0.3)Ga(0.6)Al(0.1))(S-tert-Bu)2) and (Cu(0.10)Ag(0.90)(Se-tert-Bu)2(In(0.2)Ga(0.7)Al(0.1))(Se-tert-Bu)2).    TECHNOLOGY FOCUS - POLYMERS - Preparation (Disclosed): Preparation of (I) comprises: initiation of polymerization of a metal-containing monomers of formulae (M1b(ER)3) and (M1a(ER)) to give a polymeric compound of formula (M1a(ER)(ER)M1b(ER)2) (representative of (I)). Preferred Components: (I) is linear, branched, cyclic, an alternating copolymer, a block copolymer and/or a random copolymer. EXAMPLE - In an inert atmosphere glovebox, a Schlenk tube was charged with In(Se-sec-butyl(Bu))3 (0.31 g), Ga(Se-sec-Bu)3 (0.38 g), Al(Se-sec-Bu)3 (0.26 g), Cu-Se-sec-Bu (0.28 g) and Ag-Se-sec-Bu (0.12 g). Benzene (30 ml) was added, and the reaction mixture was stirred at 25 degrees C for 12 hours. A light yellow solution was obtained. The solvent was removed under reduced pressure and pentane (30 ml) was used to extract the product. The resulting solution was filtered and the volatiles were subsequently removed under reduced pressure to give (copper(Cu)(0.7)silver(Ag)(0.25)(Se-sec-Bu)(3.95)In(0.3)Ga(0.4)Al(0.3)) (1.26 g, 93%).