Abstract: The invention relates to a bi- or polynuclear metal complex of a metal of groups Vb/VIb/VIIb, or rather groups 5-7, having at least one ligand of the structure (a), wherein R1 and R2, independently of each other, can be oxygen, sulfur, selenium, NH, or N R4, wherein R4 is selected from the group containing alkyl or aryl and can be bonded to R3; and R3 is selected from the group containing alkyl, long-chain alkyl, alkoxy, long-chain alkoxy, cycloalkyl, haloalkyl, aryl, arylenes, haloaryl, heteroaryl, hete roarylenes, heterocycloalkylenes, heterocycloalkyl, haloheteroaryl, alkenyl, haloalkenyl, alkynyl, haloalkynyl, ketoaryl, haloketoaryl, ketoheteroaryl, ketoalkyl, haloketoalkyl, ketoalkenyl, haloketoalkenyl, wherein for suitable residues, one or more non -adjacent CH₂ groups can be replaced, independently of each other, with -O-, -S-, -NH-, -NR°-, -SiR°R°°-, -CO-, -COO-, -OCO-, -OCO-O-, -SO₂-, -S-CO-, -CO-S-, -CY1=CY2, or -C≡C- in such a way that O and/or S atom s are not bonded directly to each other, likewise optionally are replaced with aryl or heteroaryl preferably containing 1 to 30 C atoms, as a p-type doping agent for matrix materials of electronic components.

Abstract: The invention relates to an organic electron transport layer n-dopant, the use of said n-dopant to construct organic electronic components, transistors, organic light-emitting diodes, light-emitting electrochemical cells, organic solar cells, photodiodes , and electronic components containing said n-dopant.

Abstract: Organic electronic is up to now the most promising technology in order to realize opto electronic devices suitable on flexible substrates, which can open new markets on plastic-based products. Nevertheless, to compete classic technologies on already exis ting markets, organic electronic needs to improve several of its electrical performances among others. Doping organic semiconductors is one strategy to optimize electrical conductivity on organic materials but is still very limiting compared to inorganic , and understanding the complex mechanism between dopant and organic semiconductor is a prerequisite for their optimization. Even if the experience shows classic dopants to be redox-active chemicals (Cs, Li, O₂), the redox activity of some che micals is no prerequisite for doping. Despite its strong reducing property, Cr₂(tfa)₄ has been demonstrated to be a p-dopant for its Lewis acidity. Cr₂(tfa)₄ presents an air-sensitivity due to the redox-activit y of the core, which implies that the conception of Lewis acids and bases, stable under oxidizing or reducing conditions,can result in potential air-stable materials which would dope organic semiconductors by the formation of hybrid charge-transfer compl exes.