Patent ID: 8426727
Filing Date: 2013-04-23
Classification: B82Y,H01L,Y02E,Y02P

Abstract:
1. An organic photoactive device, 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 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 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), wherein the donor unit (D) is formed as an extended donor block; 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), wherein the donor unit (D) and the further donor unit (D′) is formed as an extended donor block.