TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The method further involves depositing a polymeric precursor compound onto the substrate; using a dopant, or an alkali dopant, or a compound having formula MalkM'b(E'R1)4 or Malk(E'R1); and using at least one component selected from surfactant, dispersant, an emulsifier, an anti-foaming agent, a dryer, filler, resin binder, thickener, viscosity modifier, an anti-oxidant, flow agent, plasticizer, conductivity agent, crystallization promoter, an extender, film conditioner, and an adhesion promoterMalk=Li, Na, or K;R1=alkyl or aryl.Preferred Compound: The compound (I) is In(SesecBu)3, In(StBu)3, In(SenBu)3, Ga(SesecBu)3, Ga(SetBu)3, Ga(SEt)3, Ga(StBu)3, or Ga(SenBu)3. The polymeric precursor compound is copper indium gallium diselenide (CIGS), copper indium diselenide (CIS) or copper gallium diselenide (CGS) precursor compound.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The ink is a solution of the compounds in an organic carrier. The carrier is selected from aliphatic hydrocarbons, aromatic hydrocarbons, pentane, hexane, heptane, octane, isooctane, decane, cyclohexane, p-xylene, m-xylene, o-xylene, benzene, toluene, xylene, ethers, diethyl ether, tetrahydrofuran, 2-methyltetrahydrofuran, siloxanes, cyclosiloxanes, silicone fluids, acetonitrile, esters, acetates, ethyl acetate, butyl acetate, acrylates, isobornyl acrylate, ketones, acetone, methyl ethyl ketone, cyclohexanone, cyclopentanone, lactams, N-methylpyrrolidone, N-(2-hydroxyethyl)-pyrrolidone, cyclic acetals, cyclic ketals, aldehydes, alcohol, methanol, ethanol, isopropyl alcohol, thiols, butanol, butanediol, glycerols, alkoxyalcohols, glycols, 1-methoxy-2-propanol, acetone, ethylene glycol, propylene glycol, propylene glycol laurate, ethylene glycol ethers, diethylene glycol, triethylene glycol monobutylether, propylene glycol monomethylether, and/or 1,2-hexanediol. Preferred Definitions:    M'b=In or Ga;    E'=Se;    R'=n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, t-butyl, or n-pentyl.    EXAMPLE - No suitable example is given.