公开(公告)号：US12029055B2

公开(公告)日：2024-07-02

申请号：US16262408

申请日：2019-01-30

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

Inventor： Mark E. Thompson ,  Abegail Tadle ,  Muazzam Idris ,  Karim El Roz ,  Daniel Sylvinson Muthiah Ravinson ,  Stephen R. Forrest ,  Chan Ho Soh

IPC: H10K50/11 ,  C07D233/58 ,  C07D401/10 ,  C09K11/06 ,  H10K50/125 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/11 ,  C07D233/58 ,  C07D401/10 ,  C09K11/06 ,  H10K50/125 ,  H10K85/322 ,  H10K85/654 ,  H10K85/6572 ,  C09K2211/1018 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/90

Abstract: A hybrid emissive layer and OLED incorporating the same are provided. The hybrid emissive layer includes a first material having a triplet state energy level T1H and a singlet state energy level S1H, a second material having a triplet state energy level T1F and a singlet state energy level S1F; and a third material having a triplet state energy level T1P and a single state energy level S1P, where T1FT1H; S1FS1H; and T1P

公开(公告)号：US11944007B2

公开(公告)日：2024-03-26

申请号：US16449881

申请日：2019-06-24

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN ,  UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Mark E. Thompson ,  Stephen R. Forrest ,  Guodan Wei ,  Siyi Wang ,  Lincoln Hall ,  Viacheslav V. Diev ,  Xin Xiao

IPC: C09B57/00 ,  B82Y10/00 ,  C09K11/06 ,  H01G9/20 ,  H10K85/60 ,  H10K30/20 ,  H10K85/20

CPC classification number: H10K85/6572 ,  B82Y10/00 ,  C09B57/007 ,  C09B57/008 ,  C09K11/06 ,  H01G9/2059 ,  H10K85/631 ,  H10K85/633 ,  H10K85/657 ,  C07C2601/04 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  H10K30/211 ,  H10K85/211 ,  H10K85/626 ,  Y02E10/549

Abstract: There is disclosed squaraine compounds of formula I:




wherein each of Y1 and Y2 is independently chosen from an optionally substituted amino group and an optionally substituted aryl group. Also described are organic optoelectronic devices comprising a Donor-Acceptor heterojunction that is formed from one or more of the squaraine compounds. A method of making the disclosed device, which may include one or more sublimation step for depositing said squaraine compound, is also disclosed.

公开(公告)号：US20240049584A1

公开(公告)日：2024-02-08

申请号：US18491050

申请日：2023-10-20

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：US20230391798A1

公开(公告)日：2023-12-07

申请号：US18322819

申请日：2023-05-24

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

Inventor： Sunil K. Kandappa ,  Chandler Dobson ,  Mark E. Thompson ,  Peter I. Djurovich ,  Yongxi Li ,  Stephen R. Forrest

IPC: C07D519/00 ,  C07F5/02 ,  H10K30/50

CPC classification number: C07D519/00 ,  C07F5/022 ,  H10K30/50 ,  H10K2102/10

Abstract: Provided are compounds of Formula I. Also provided are formulations comprising these compounds. Further provided are optoelectronic devices that utilize these compounds.

公开(公告)号：US11832475B2

公开(公告)日：2023-11-28

申请号：US17826722

申请日：2022-05-27

Applicant: The Regents of the University of Michigan

Inventor： Yue Qu ,  Xiaheng Huang ,  Stephen R. Forrest

IPC: H10K50/854 ,  H10K50/11 ,  H10K77/10 ,  B29L31/34 ,  B29C41/02 ,  H10K101/10 ,  H10K102/00 ,  H10K71/00 ,  H10K71/80

CPC classification number: H10K50/854 ,  H10K50/11 ,  H10K71/00 ,  H10K71/80 ,  H10K77/111 ,  B29C41/02 ,  B29L2031/3475 ,  H10K71/821 ,  H10K2101/10 ,  H10K2102/311

Abstract: A method of fabricating a light emitting device comprises providing a mold having an unpolished surface with an arithmetic mean roughness Ra in a range from 0.1 μm to 10 μm, depositing a thin polymer film over the surface of the mold, wherein the film has a thickness in a range from 1 μm to 100 μm, positioning a light emitting body onto the thin polymer film, wherein the light emitting body includes an anode, a cathode, and a light emitting layer positioned between the anode and the cathode, and separating the thin polymer film with the light emitting body from the mold. A light emitting device is also described.

公开(公告)号：US11744097B2

公开(公告)日：2023-08-29

申请号：US17317266

申请日：2021-05-11

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN ,  THE UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Stephen R. Forrest ,  Michael Slootsky ,  Mark E. Thompson

IPC: C09K11/06 ,  H10K50/12 ,  H10K50/11 ,  H10K101/10

CPC classification number: H10K50/121 ,  C09K11/06 ,  H10K50/11 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1044 ,  C09K2211/1088 ,  H10K2101/10

Abstract: Arrangements and techniques for providing organic emissive layers are provided, in which the emissive layer includes a first dopant having a dissociative energy level. A second dopant in the emissive layer provides a solid state sink energy level, to which doubly excited excitons and/or polarons may transition instead of to the dissociative energy level, thereby decreasing the undesirable effects of transitions to the dissociative energy level.

公开(公告)号：US11716864B2

公开(公告)日：2023-08-01

申请号：US16920555

申请日：2020-07-03

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Caleb Coburn ,  Dejiu Fan

IPC: H01L27/146 ,  H10K39/32 ,  H04N25/53 ,  H04N25/71 ,  H04N25/75 ,  H10K30/30 ,  H10K30/82 ,  H10K85/20

CPC classification number: H10K39/32 ,  H04N25/53 ,  H04N25/71 ,  H04N25/75 ,  H10K30/30 ,  H10K30/82 ,  H10K85/211

Abstract: An organic optoelectronic device comprises a substrate having first and second regions, a first electrode positioned over the first region of the substrate, a shutter electrode positioned over the second region of the substrate, an organic heterojunction layer comprising an organic heterojunction material, positioned over at least a portion of the first electrode, an insulator layer positioned over at least a portion of the shutter electrode, an organic channel layer, comprising an organic channel material, positioned over at least a portion of the heterojunction and insulator layers, and a second electrode positioned over the channel layer in the second region of the substrate, wherein the shutter electrode is configured to generate a repulsive potential barrier in the channel layer, suitable to at least reduce movement of charge in the channel layer. A method of measuring received light in an optoelectronic device is also described.

公开(公告)号：US11594686B2

公开(公告)日：2023-02-28

申请号：US17515690

申请日：2021-11-01

Applicant: The Regents of the University of Michigan

Inventor： Xiaheng Huang ,  Yongxi Li ,  Stephen R. Forrest

IPC: H01L51/44 ,  H01L51/00

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. 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.

公开(公告)号：US20220367836A1

公开(公告)日：2022-11-17

申请号：US17826722

申请日：2022-05-27

Applicant: The Regents of the University of Michigan

Inventor： Yue QU ,  Xiaheng Huang ,  Stephen R. Forrest

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/50 ,  H01L51/56

Abstract: A method of fabricating a light emitting device comprises providing a mold having an unpolished surface with an arithmetic mean roughness Ra in a range from 0.1 μm to 10 μm, depositing a thin polymer film over the surface of the mold, wherein the film has a thickness in a range from 1 μm to 100 μm, positioning a light emitting body onto the thin polymer film, wherein the light emitting body includes an anode, a cathode, and a light emitting layer positioned between the anode and the cathode, and separating the thin polymer film with the light emitting body from the mold. A light emitting device is also described.

公开(公告)号：US11251386B2

公开(公告)日：2022-02-15

申请号：US15125690

申请日：2015-04-06

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Xiaozhou Che ,  Xin Xiao ,  Stephen R. Forrest

IPC: H01L51/42 ,  H01L51/00

Abstract: A highly efficient multi junction photovoltaic device, such as a two, three, or four junction device, is disclosed. The multi-junction device may include a first subcell comprising a first photoactive region and a second subcell comprising a second photoactive region. The first and second photoactive regions are designed to minimize spectral overlap and maximize photocurrent across a broad absorption spectra, such as wavelengths ranging from 400 nm to 900 nm. The device may further include an inter-connecting layer, disposed between the first subcell and the second subcell, that is at least substantially transparent. By introducing a transparent interconnecting layer, a dual element (tandem) cell achieves a power conversion efficiency of 10.0±0.5%. By adding an additional (3rd) sub-cell that absorbs at the second order optical interference maximum within the stack. The triple junction cell significantly improves the quantum efficiency at shorter wavelengths, achieving a power conversion efficiency of 11.1±0.5%. Adding additional sub-cells has been shown to increase power conversion efficiency above 12%.