公开(公告)号：US12185557B2

公开(公告)日：2024-12-31

申请号：US17530817

申请日：2021-11-19

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Chan Ho Soh

IPC: H10K30/80 ,  H10K50/11 ,  H10K50/15 ,  H10K102/00

Abstract: An optoelectronic device comprises a first electrode; a first host material layer positioned over the first electrode; a second host material layer positioned over the first host material layer; at least one ultrathin dopant layer positioned between the first and second host material layers, the at least one ultrathin dopant layer having a thickness of less than 2 Å; and a second electrode positioned over the second host material layers. Other organic optoelectronic devices are also disclosed.

公开(公告)号：US12132127B2

公开(公告)日：2024-10-29

申请号：US17484342

申请日：2021-09-24

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Christopher Kyle Renshaw ,  Michael Slootsky

IPC: H01L31/0232 ,  H01L31/0304 ,  H01L31/0392 ,  H01L31/0445 ,  H01L31/0687 ,  H01L31/0693 ,  H01L31/18

CPC classification number: H01L31/02327 ,  H01L31/03046 ,  H01L31/0392 ,  H01L31/03926 ,  H01L31/0445 ,  H01L31/0687 ,  H01L31/0693 ,  H01L31/1844 ,  H01L31/1896 ,  Y02E10/52 ,  Y02E10/544

Abstract: There is disclosed ultrahigh-efficiency single- and multi-junction thin-film solar cells. This disclosure is also directed to a substrate-damage-free epitaxial lift-off (“ELO”) process that employs adhesive-free, reliable and lightweight cold-weld bonding to a substrate, such as bonding to plastic or metal foils shaped into compound parabolic metal foil concentrators. By combining low-cost solar cell production and ultrahigh-efficiency of solar intensity-concentrated thin-film solar cells on foil substrates shaped into an integrated collector, as described herein, both lower cost of the module as well as significant cost reductions in the infrastructure is achieved.

公开(公告)号：US20240074218A1

公开(公告)日：2024-02-29

申请号：US18184497

申请日：2023-03-15

Applicant: The Regents of the University of Michigan ,  University of Southern California

Inventor： Stephen R. Forrest ,  Xin Xiao ,  Jeramy D. Zimmerman ,  Kevin Bergemann ,  Anurag Panda ,  Brian E. Lassiter ,  Mark E. Thompson ,  Andrew N. Bartynski ,  Cong Trinh

IPC: H10K30/30 ,  B82Y10/00

CPC classification number: H10K30/353 ,  B82Y10/00 ,  H10K85/211 ,  Y02E10/549

Abstract: Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

公开(公告)号：US11832504B2

公开(公告)日：2023-11-28

申请号：US17100003

申请日：2020-11-20

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest

IPC: H10K71/16 ,  H10K59/122

CPC classification number: H10K71/166 ,  H10K59/122

Abstract: A method for fabricating an organic electronic device comprises providing a plurality of photoresist structures on a substrate, the substrate having a first electrode layer, the photoresist structures having a bottom surface attached to the substrate and a top surface opposite the bottom surface, the top surface having a dimension greater than a dimension of the bottom surface, positioning a mask over the structures, the mask having a plurality of openings, and depositing an emissive material over the substrate through at least one of the plurality of openings to form at least one emissive element. An organic electronic device and a method of fabricating an organic electronic component are also described.

公开(公告)号：US11744138B2

公开(公告)日：2023-08-29

申请号：US16946696

申请日：2020-07-01

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Brian E. Lassiter ,  Jeramy D. Zimmerman

IPC: H10K71/15 ,  H10K30/30 ,  H10K30/57 ,  H10K85/20 ,  H10K85/60

CPC classification number: H10K71/15 ,  H10K30/30 ,  H10K30/57 ,  H10K85/211 ,  H10K85/221 ,  H10K85/631 ,  H10K85/633 ,  H10K85/657 ,  H10K85/6572

Abstract: Disclosed herein are organic photosensitive optoelectronic device comprising a first layer comprising one or more of a first layer material, a second layer comprising one or more of a second layer material, and a third layer comprising one or more of a third layer material. The second layer may be dissolved in a semi-orthogonal solvent. The first layer and the third layer may be very slightly soluble or practically insoluble in the semi-orthogonal solvent.

公开(公告)号：US20230210006A1

公开(公告)日：2023-06-29

申请号：US18171747

申请日：2023-02-21

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Yongxi Li

IPC: H10K85/60 ,  C07D495/22

CPC classification number: H10K85/6576 ,  C07D495/22 ,  H10K85/621 ,  H10K30/30

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency. One example of a non-fullerene acceptor is (4,4,10,10-tetrakis(4-hexylphenyl)-5,11-(2-ethylhexyloxy)-4,10-dihydro-dithienyl[1,2-b:4,5b′]benzodi-thiophene-2,8-diyl) bis(2-(3-oxo-2,3-dihydroinden-5,6-dichloro-1-ylidene) malononitrile.

公开(公告)号：US11552247B2

公开(公告)日：2023-01-10

申请号：US16821416

申请日：2020-03-17

Applicant: The Regents of the University of Michigan ,  Trustees of Boston University

Inventor： Stephen R. Forrest ,  Jeffrey A. Horowitz ,  David J. Bishop

IPC: H01L29/08 ,  H01L51/00 ,  H01L51/56 ,  B81B7/00 ,  H01L51/52

Abstract: An organic vapor deposition device comprises a print head, comprising a source channel, in fluid communication with a flow of carrier gas and a quantity of organic source material configured to mix with the carrier gas, a nozzle having a deposition outlet, in fluid communication with the source channel, and a shutter configured at least to open and close the deposition outlet, wherein the print heat is configured to allow the flow of carrier gas and the organic source material exit the deposition outlet when the shutter is in an open position, and to prevent the flow of carrier gas and the organic source material from exiting the deposition outlet when the shutter is in a closed position. A method of manufacturing a device comprising an organic feature on a substrate is also described.

公开(公告)号：US11362310B2

公开(公告)日：2022-06-14

申请号：US16193056

申请日：2018-11-16

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Stephen R. Forrest ,  Yue Qu

IPC: H01L51/52 ,  H01L51/50

Abstract: A device including an organic light emitting diode and a dielectric layer is provided. The dielectric layer provides additional distance between a reflector and the organic emission region, leading to improved reduction in non-emissive modes and enhanced efficiency.

公开(公告)号：US11342526B2

公开(公告)日：2022-05-24

申请号：US16745851

申请日：2020-01-17

Applicant: The Regents of the University of Michigan ,  The University of Southern California

Inventor： Stephen R. Forrest ,  Chan Ho Soh ,  Mark E. Thompson ,  Muazzam Idris

IPC: H01L51/50

Abstract: An OLED device comprises an anode and a cathode, and at least one graded emissive layer disposed between the anode and the cathode, the graded emissive layer comprising first and second materials, wherein a concentration of the first material increases continuously from an anode side of the graded emissive layer to a cathode side of the graded emissive layer, and a concentration of the second material decreases continuously from the anode side of the graded emissive layer to the cathode side of the graded emissive layer. An OLED device comprising a graded emissive layer and a hybrid white OLED device are also described.

公开(公告)号：US20210320270A1

公开(公告)日：2021-10-14

申请号：US17036472

申请日：2020-09-29

Applicant: The Regents of the University of Michigan

Inventor： Yongxi Li ,  Stephen R. Forrest

IPC: H01L51/44 ,  H01L51/00 ,  C09D1/00 ,  C09D5/00

Abstract: A photovoltaic cell comprises an anode, a cathode, a first subcell positioned between the anode and the cathode, the first subcell comprising a first donor material and a first acceptor material, and a second subcell positioned between the first subcell and the cathode, the second subcell comprising a second donor material and a second acceptor material. A method of fabricating a photovoltaic cell is also described.