公开(公告)号：US20240159593A1

公开(公告)日：2024-05-16

申请号：US18549834

申请日：2022-03-11

Applicant: SENORICS GMBH

Inventor： Jonas KUBLITSKI ,  Axel FISCHER ,  Donato SPOLTORE ,  Karl LEO ,  Yazhong WANG ,  Louis Conrad WINKLER ,  Johannes BENDUHN

IPC: G01J5/10

CPC classification number: G01J5/10

Abstract: By directly exciting optical transitions to the intermolecular CT state, the wavelength range which can be detected by organic photodetectors can be expanded into the NIR or IR region, wherein, however, the EQE is low even when using resonance effects by arranging the photoactive layer in an optical microcavity. The invention relates to an optoelectronic component (1, 1′, 1″, 1′″) and to a corresponding detection method in which the concentration of the donor compound in the photoactive layer (2) or the concentration of the acceptor compound in the photoactive layer (2) is so low that the low-concentration compound provides trap states for the corresponding charge carriers (81), said trap states causing a photo-induced accumulation of the charge carriers (81) associated with the low-concentration compound in a region of the photoactive layer (2) facing the first electrode (31) so that charge carriers (82) associated with the high-concentration compound are injected into the photoactive layer (2) from the first electrode (31), as a result of which this charge carrier species (82) predominates in the component (1, 1′, 1″, 1′″). The increase in EQE achieved by means of the invention offers the particular advantage of extending the detectable wavelength range to higher wavelengths.