TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The first transition metal complex and the second transition metal complex show a quadratic planar structure or a quasi-quadratic-planar structure. The columnar structure is obtained by overlapping d-orbital and p-orbital of the first transition metal complex with d-orbital and p-orbital of the second transition metal complex. In the case of a transition metal complex with quadratic-planar structure, a d8 electronic structure is formed and leads to the formation of columnar structure. The quadratic planar transition metal complex and/or the quasi-quadratic-planar transition metal complex have mono-, di- or trivalent metal center. The quadratic planar transition metal complex and/or the quasi-quadratic-planar transition metal complex have the structures of formulae (L1-M(L2)(L3)-L4) and (a)-(e). The first transition metal complex and the second transition metal complex are a platinum(II)-complex, iridium(I)-complex, rhodium(I)-complex, gold(III)-complex, palladium(II)-complex, gold(I)-complex or a silver(I)-complex. The first transition metal complex is 128 palladium(II)-complexes e.g. of formulae (I)-(X). The second transition metal complex is: 122 platinum(II)-complexes e.g. of formulae (XI)-(XX); 7 iridium(I)-complexes e.g. of formulae (AL1-Ir(NL1)(NL2)-NL3) and (XXI)-(XIV); 7 rhodium(I)-complexes e.g. of formulae (NL1-Rh(NL2)(NL3)-AL3) and (XXV)-(XXVII); or 7 gold(III)-complexes e.g. of formulae (AL1-Au(AL2)(AL3)-NL1) and (XXVIII)-(XXX). The amount of the first transition metal complex and the second transition metal complex together in the emitter or absorber is 100% or 1-100%. The composition comprises at least one third neutral transition metal complex. The amount of the first transition metal complex and the second transition metal complex together: in electronic component (preferably organic solar cell (OSC) or organic light emitting diode (OLED)) is 10-100%; in organic light emitting diode is 1-100%; or in the electronic component is 1-10%. The first transition metal complex is present at 90-99.999% and the second transition metal complex is present at 10-0.001%. The matrix material is the third neutral transition metal complex.M = Pt(II), Rh(I), Ir(I), Au(III), or Pd(II);L1-L4 = organic ligand;E = O, S or NR;R1-R8 = R;R = alkyl, aryl, heteroaryl or alkenyl (all substituted with halo, alkyl or donor and acceptor groups, preferably tertiary amine, carboxylate or its ester, or CF3), H, halo, groups, which is bounded over O and/or N, or annellated ring systems;NL1, NL2, NL3 = neutral monodentate ligand e.g. CO, NCR1a, CNR2a or oxazole;AL1, AL2, AL3 = anionic monodentate ligand e.g. CN-, Cl-, Br-, I-, RS-, RO-, SCN-, OCN-, aryl, alkenyl, alkynyl or borate; andR1a, R2a, R9-R16 = not defined.Preferred Method: The application step takes place wet-chemically, by colloidal suspension or sublimation. EXAMPLE - No suitable example given.