公开(公告)号：US20220199840A1

公开(公告)日：2022-06-23

申请号：US17595225

申请日：2020-05-15

Applicant: SENORICS GMBH

Inventor： Rico MEERHEIM ,  Robert BRÜCKNER ,  Matthias JAHNEL ,  Karl LEO

IPC: H01L31/0232 ,  H01L27/144 ,  H01L27/30 ,  H01L51/44

Abstract: The invention relates to different aspects of a photodetector (1-8) for detecting electromagnetic radiation in a spectrally selective manner, comprising a first optoelectronic component (100-106, 108) for detecting a first wavelength of the electromagnetic radiation. The first optoelectronic component (100-106, 108) has a first optical cavity and at least one detection cell (21, 21a, 22, 22a, 23) arranged in the first optical cavity. The first optical cavity is made of two mutually spaced parallel mirror layers (11, 11a, 11′, 12, 12a). The length of the first optical cavity is configured such that for the first wavelength, a resonant wave (13, 13a), which is associated with said wavelength, of the i-th order is formed in the first optical cavity. Each detection cell (21, 21a, 22, 22a, 23) has a photoactive layer (210, 220, 230), each photoactive layer being arranged within the first optical cavity such that precisely one vibration maximum of the resonant wave (13, 13a) lies within the photoactive layer (210, 220, 230). According to a first aspect of the invention, the order of the resonant wave (13, 13a) of the first optoelectronic component (100-106, 108) is greater than 1, and at least one optically absorbent intermediate layer (30, 31) and/or at least one optically transparent contact layer (50) is arranged in the optical cavity. According to a second aspect, the first optoelectronic component (110, 110′) has at least one optically transparent spacer layer (40) in addition to the detection cell (21, 21′), said spacer layer being arranged in the first optical cavity between one of the mirror layers (11, 12) and the detection cell (21, 21′), and at least one outer contact (60, 60′), which adjoins an outer surface of the detection cell (21, 21′) and consists of an electrically conductive material.

公开(公告)号：US20220165798A1

公开(公告)日：2022-05-26

申请号：US17310229

申请日：2020-01-08

Applicant: SENORICS GMBH

Inventor： Robert BRÜCKNER ,  Matthias JAHNEL ,  Karl LEO ,  Ronny TIMMRECK

IPC: H01L27/30 ,  G01J3/28

Abstract: The invention concerns a hybrid multispectral device comprising a substrate having a first surface and a second surface, at least one first functional element having a first functional layer operable to detect or emit light of a first wavelength range, and at least one second functional element having a second functional layer operable to detect or emit light of a second wavelength range different from the first wavelength range. The first functional element is arranged on the first surface of the substrate, while the second functional element is arranged on the second surface of the substrate. The first functional element is arranged in a first lateral region of the multispectral device, and the second functional element is arranged in a second lateral region of the multispectral device. The first lateral region and the second lateral region are arranged laterally offset from each other such that the light of the second wavelength region reaches the second functional element or the light of the second wavelength region emitted from the second functional element exits the multispectral device on the first surface of the substrate without having passed through the first functional layer.

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.