公开(公告)号：US20220006027A1

公开(公告)日：2022-01-06

申请号：US17357485

申请日：2021-06-24

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Jongchan Kim ,  Siwei Zhang

IPC: H01L51/00

Abstract: An organic light emitting device comprises an anode and a cathode, at least one organic layer configured between the anode and the cathode, and at least one two-dimensional emissive layer configured between the anode and the cathode. A method of fabricating an organic light emitting device is also disclosed.

公开(公告)号：US20210288267A1

公开(公告)日：2021-09-16

申请号：US16903874

申请日：2020-06-17

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Yongxi Li

IPC: H01L51/00 ,  C07D495/22

Abstract: The present invention relates in part to an asymmetric non-fullerene acceptor compound for use in organic photovoltaic (OPV) devices. The invention also relates in part to an OPV device comprising an asymmetric non-fullerene acceptor compound.

公开(公告)号：US10770690B2

公开(公告)日：2020-09-08

申请号：US16189088

申请日：2018-11-13

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Stephen R. Forrest ,  Jongchan Kim

IPC: H01L51/52 ,  G02B5/02

Abstract: A top-emitting organic light emitting device (OLED) that comprises: a substrate having an inward side and an outward side; an OLED body that includes a transparent bottom electrode proximate to the inward side of the substrate, an organic emitting layer, and a transparent top electrode in that order; a non-metallic, diffuse reflective layer with a roughened top surface proximate to and facing the bottom transparent electrode; and a high refractive index waveguide layer. The diffuse reflective layer is positioned between the inward side of the substrate and the OLED body, and the waveguide layer is positioned between the diffuse layer and the bottom transparent electrode.

公开(公告)号：US20200243786A1

公开(公告)日：2020-07-30

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：US20190259970A1

公开(公告)日：2019-08-22

申请号：US16126277

申请日：2018-09-10

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

Inventor： Stephen R. Forrest ,  Mark E. Thompson

IPC: H01L51/42 ,  H01L31/0232 ,  H01L31/055

Abstract: The present disclosure relates to a photosensitive optoelectronic device comprising two electrodes, an inorganic sub-cell positioned between the two electrodes, wherein the inorganic subcell comprises at least one inorganic semiconductor material having a band gap energy (EG), and an organic sensitizing window layer disposed on the inorganic subcell. In one aspect, the organic sensitizing window layer comprises a singlet fission material. In another aspect, the organic sensitizing window layer comprises a singlet fission host and a phosphorescent emitter dopant, where the singlet fission host exhibits an excitation triplet energy (ET-SF) greater than or equal to an excitation triplet energy (ET-PE) exhibited by the phosphorescent emitter dopant.

公开(公告)号：US10340187B2

公开(公告)日：2019-07-02

申请号：US15558230

申请日：2016-03-18

Applicant: The Regents Of The University Of Michigan

Inventor： Stephen R. Forrest ,  Kyusang Lee ,  Dejiu Fan

IPC: H01L21/02 ,  H01L31/18 ,  H01L21/78 ,  C30B33/08 ,  C09K13/00 ,  H01L33/00

Abstract: Disclosed herein are methods to eliminate or reduce the peeling-off of epitaxial lifted-off thin film epilayers on secondary host substrates that allow for the fabrication of high yield ELO processed thin film devices. The methods employ patterned strain-relief trenches.

公开(公告)号：US10141531B2

公开(公告)日：2018-11-27

申请号：US14647601

申请日：2013-11-27

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

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

IPC: H01L31/00 ,  H01L51/42 ,  B82Y10/00 ,  H01L51/00

Abstract: Disclosed herein are organic photosensitive optoelectronic devices comprising at least one hybrid planar-graded heterojunction. In particular, organic photosensitive optoelectronic devices are disclosed having two electrodes (110), (150) in superposed relation, a graded heterojunction layer (130) located between the two electrodes, and at least one photoactive layer (120), (140) adjacent to and interfacing with the graded heterojunction layer.

公开(公告)号：US20180030588A1

公开(公告)日：2018-02-01

申请号：US15719972

申请日：2017-09-29

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Gregory McGraw

IPC: C23C14/12 ,  B41J2/005 ,  C23C14/04 ,  C23C14/22

CPC classification number: C23C14/12 ,  B41J2/005 ,  C23C14/04 ,  C23C14/228

Abstract: A first device is provided. The device includes a print head. The print head further includes a first nozzle hermetically sealed to a first source of gas. The first nozzle has an aperture having a smallest dimension of 0.5 to 500 microns in a direction perpendicular to a flow direction of the first nozzle. At a distance from the aperture into the first nozzle that is 5 times the smallest dimension of the aperture of the first nozzle, the smallest dimension perpendicular to the flow direction is at least twice the smallest dimension of the aperture of the first nozzle.

公开(公告)号：US09853247B2

公开(公告)日：2017-12-26

申请号：US14645045

申请日：2015-03-11

Applicant: The Regents of the University of Michigan

Inventor： Jaesang Lee ,  Michael Slootsky ,  Stephen R. Forrest

IPC: H01L51/52 ,  H05B33/08

CPC classification number: H01L51/5271 ,  H01L51/5262 ,  H01L2251/5307 ,  H01L2251/5361 ,  H05B33/0896

Abstract: Embodiments of the disclosed subject matter provide a device with a base having an opening, and a plurality of organic light emitting devices (OLEDs) disposed on a plurality of substrates and arranged in a light directing structure onto the base, where the opening of the base is a light exit aperture of light output by the plurality of OLEDs.

公开(公告)号：US09847487B2

公开(公告)日：2017-12-19

申请号：US14646136

申请日：2013-11-22

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

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

IPC: H01L51/00 ,  H01L51/42 ,  B82Y10/00

CPC classification number: H01L51/0026 ,  B82Y10/00 ,  H01L51/0003 ,  H01L51/001 ,  H01L51/0028 ,  H01L51/0046 ,  H01L51/0053 ,  H01L51/0059 ,  H01L51/0062 ,  H01L51/4253 ,  Y02E10/549

Abstract: Disclosed herein are methods for fabricating an organic photovoltaic device comprising depositing an amorphous organic layer and a crystalline organic layer over a first electrode, wherein the amorphous organic layer and the crystalline organic layer contact one another at an interface; annealing the amorphous organic layer and the crystalline organic layer for a time sufficient to induce at least partial crystallinity in the amorphous organic layer; and depositing a second electrode over the amorphous organic layer and the crystalline organic layer. In the methods and devices herein, the amorphous organic layer may comprise at least one material that undergoes inverse-quasi epitaxial (IQE) alignment to a material of the crystalline organic layer as a result of the annealing.