Abstract: The invention relates to an organic photoactive device, especially an organic photovoltaic cell, with a contact and a countercontact as well as with an organic region that is electrically connected to the contact and the countercontact, wherein a photoactive region with a photoactive bulk heterojunction or a flat heterojunction between an electron-conducting organic material and a hole-conducting organic material is formed in the organic region and wherein the hole-conducting organic material and/or the electron-conducting organic material is formed from oligomers according to any one of the following types: conjugated acceptor-donor-acceptor oligomer (A-D-A? oligomer) with an acceptor unit (A) and a further acceptor unit (A?) that are each connected to a donor unit (D), and conjugated donor-acceptor-donor oligomer (D-A-D? oligomer) with a donor unit (D) and a further donor unit (D?) that are each connected to an acceptor unit (A).

Abstract: The invention relates to an organic photoactive component, especially a solar cell or a photodetector, built up from a plurality of layers, wherein at least one of the layers comprises at least one di-indeno[1,2,3-cd:1?,2?,3?-lm]perylene compound of the general formula in Illustration 1, wherein each R1-R16 is independently selected from hydrogen, halogen, unsubstituted or substituted, saturated or unsaturated C1-C20-alkyl, C1-C20-heteroalkyl, C6-C20-aryl, C6-C20-heteroaryl, saturated or unsaturated carbocycle or heterocycle, which may be the same or different, wherein two adjacent radicals R1-R16 may also be part of a further saturated or unsaturated, carbocyclic or heterocyclic ring, wherein the ring may comprise C, N, O, S, Si and Se, and the use of the said component.

Abstract: The invention relates to a photoactive device with organic layers, especially a solar cell, with a layer arrangement having an electrode and a counterelectrode as well as a sequence of organic layers arranged between the electrode and the counterelectrode, wherein two layers bordering on one another are formed in a photoactive region encompassed by the sequence of organic layers, namely, an exciton-harvesting layer (EHL) and an exciton-separating layer (ESL); in which the exciton-harvesting layer (EHL) is a mixed layer containing an organic material (A) and at least one further organic material (B), in which (i) a lowest singlet excitation state for excitons (S1A) of the organic material (A) is energetically higher than a lowest singlet excitation state for excitons (S1B) of the further organic material (B), (ii) the further organic material (B) is chosen such that it transforms singlet excitons into triplet excitons with a quantum yield of at least approximately 20%, preferably of at least approximately 50%

Abstract: The invention relates to an organic photoactive device, especially an organic photovoltaic cell, with a contact and a countercontact as well as with an organic region that is electrically connected to the contact and the countercontact, wherein a photoactive region with a photoactive bulk heterojunction or a flat heterojunction between an electron-conducting organic material and a hole-conducting organic material is formed in the organic region and wherein the hole-conducting organic material and/or the electron-conducting organic material is formed from oligomers according to any one of the following types: conjugated acceptor-donor-acceptor oligomer (A-D-A? oligomer) with an acceptor unit (A) and a further acceptor unit (A?) that are each connected to a donor unit (D), and conjugated donor-acceptor-donor oligomer (D-A-D? oligomer) with a donor unit (D) and a further donor unit (D?) that are each connected to an acceptor unit (A).