TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The composition has a surface tension of less than 33 mN/m at 25 degrees C. The palladium precursor composition contains palladium organoamine complex and non-complexed organoamine. The composition does not contain a reducing agent. Preferred Method: In the method (M1), the solution coating is performed by spin coating, dip coating, spray coating, flexographic printing, offset printing, or inkjet printing the palladium precursor composition onto the substrate. The heating is performed at a temperature of 80-350 degrees C for a period of 0.1 second to 30 minutes. In the method (M1), no reducing agent is added. Preferred Components: The palladium salt is selected from palladium carboxylate, palladium chloride, palladium nitrate, palladium sulfate, palladium iodide, palladium cyanide, ethylenediamine palladium chloride, tetraaminepalladium bromide, bis(acetylacetonato) palladium, and/or diamine dinitro palladium. The palladium salt is 1-50 wt.% of the precursor composition. The molar ratio of the organoamine to the palladium salt is 1:1 to 5:1. The palladium salt and the organoamine form a complex in the organic solvent.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The composition further comprises non-complexed organoamine. Preferred Components: The organoamine has a melting point of less than 50 degrees C. The organoamine is ethylamine, propylamine, butylamine, pentylamine, hexylamine, heptylamine, octylamine, nonylamine, decylamine, undecylamine, dodecylamine, tridecylamine, tetradecylamine, hexadecylamine, diaminobutane, diaminopentane, diaminohexane, diaminoheptane, diaminooctane, diaminononane, diaminodecane, dipropylamine, dibutylamine, dipentylamine, dihexylamine, diheptylamine, dioctylamine, dinonylamine, didecylamine, methylpropylamine, ethylpropylamine, propylbutylamine, ethylbutylamine, ethyl pentylamine, propylpentylamine, butylpentylamine, triethylamine, tributylamine, or trihexylamine. The solvent is selected from toluene, xylene, mesitylene, ethylbenzene, diethylbenzene, trimethyl benzene, methyl ethylbenzene, tetrahydronaphthalene, methyl isobutyl ketone, methyl benzoate, benzyl benzoate, anisole, cyclohexanone, and/or acetophenone. The organoamine is a liquid at room temperature. EXAMPLE - No suitable example given.