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公开(公告)号：US10014485B2
公开(公告)日：2018-07-03
申请号：US15167526
申请日：2016-05-27
Applicant: The Regents of the University of Michigan
Inventor： Stephen Forrest , Xiangfei Qi , Michael Slootsky
CPC classification number: H01L51/504 , H01L27/3206 , H01L27/3209 , H01L27/3211 , H01L51/5004 , H01L51/5016 , H01L51/5036 , H01L51/5278 , H01L2251/303 , H01L2251/308 , H01L2251/552
Abstract: The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.
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2.发明授权公开(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.
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公开(公告)号：US09379346B2
公开(公告)日：2016-06-28
申请号：US14746571
申请日：2015-06-22
Applicant: The Regents of the University of Michigan
Inventor： Stephen Forrest , Xiangfei Qi , Michael Slootsky
CPC classification number: H01L51/504 , H01L27/3206 , H01L27/3209 , H01L27/3211 , H01L51/5004 , H01L51/5016 , H01L51/5036 , H01L51/5278 , H01L2251/303 , H01L2251/308 , H01L2251/552
Abstract: The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.
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公开(公告)号：US20140306199A1
公开(公告)日：2014-10-16
申请号：US14136839
申请日：2013-12-20
Applicant: The Regents of the University of Michigan
Inventor： Stephen R. Forrest , Michael Slootsky , Richard Lunt
CPC classification number: H01L51/5203 , H01L27/3244 , H01L33/24 , H01L51/5271 , H01L51/5275 , H01L2251/5315
Abstract: A first device is provided. The first device includes an organic light emitting device, which further comprises a first electrode, a second electrode, and an organic emissive layer disposed between the first and second electrode. Preferably, the second electrode is more transparent than the first electrode. The organic emissive layer has a first portion shaped to form an indentation in the direction of the first electrode, and a second portion shaped to form a protrusion in the direction of the second electrode. The first device may include a plurality of organic light emitting devices. The indentation may have a shape that is formed from a partial sphere, a partial cylinder, a pyramid, or a pyramid with a mesa, among others. The protrusions may be formed between adjoining indentations or between an indentation and a surface parallel to the substrate.
Abstract translation: 提供第一个设备。 第一器件包括有机发光器件，其还包括设置在第一和第二电极之间的第一电极，第二电极和有机发光层。 优选地，第二电极比第一电极更透明。 有机发光层具有成形为在第一电极的方向上形成凹陷的第一部分和形成为在第二电极的方向上形成突起的第二部分。 第一装置可以包括多个有机发光装置。 凹陷可以具有由局部球体，部分圆柱体，金字塔形或具有台面的金字塔等形成的形状。 突起可以形成在相邻的凹陷之间或者在凹陷和平行于基底的表面之间。
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5.发明申请公开(公告)号：US20220013672A1
公开(公告)日：2022-01-13
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 , H01L31/0687 , H01L31/18 , H01L31/0304 , H01L31/0693 , H01L31/0392 , H01L31/0445
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.
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Patent Agency Ranking
公开(公告)号：US10483477B2
公开(公告)日：2019-11-19
申请号：US15901913
申请日：2018-02-22
Inventor： Stephen R. Forrest , Michael Slootsky , Mark E. Thompson
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.
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公开(公告)号：US09054335B2
公开(公告)日：2015-06-09
申请号：US14136839
申请日：2013-12-20
Applicant: The Regents of the University of Michigan
Inventor： Stephen R. Forrest , Michael Slootsky , Richard Lunt
CPC classification number: H01L51/5203 , H01L27/3244 , H01L33/24 , H01L51/5271 , H01L51/5275 , H01L2251/5315
Abstract: A first device is provided. The first device includes an organic light emitting device, which further comprises a first electrode, a second electrode, and an organic emissive layer disposed between the first and second electrode. Preferably, the second electrode is more transparent than the first electrode. The organic emissive layer has a first portion shaped to form an indentation in the direction of the first electrode, and a second portion shaped to form a protrusion in the direction of the second electrode. The first device may include a plurality of organic light emitting devices. The indentation may have a shape that is formed from a partial sphere, a partial cylinder, a pyramid, or a pyramid with a mesa, among others. The protrusions may be formed between adjoining indentations or between an indentation and a surface parallel to the substrate.
Abstract translation: 提供第一个设备。 第一器件包括有机发光器件，其还包括设置在第一和第二电极之间的第一电极，第二电极和有机发光层。 优选地，第二电极比第一电极更透明。 有机发光层具有成形为在第一电极的方向上形成凹陷的第一部分和形成为在第二电极的方向上形成突起的第二部分。 第一装置可以包括多个有机发光装置。 凹陷可以具有由局部球体，部分圆柱体，金字塔形或具有台面的金字塔等形成的形状。 突起可以形成在相邻的凹陷之间或者在凹陷和平行于基底的表面之间。
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公开(公告)号：US20130200781A1
公开(公告)日：2013-08-08
申请号：US13757213
申请日：2013-02-01
Applicant: The Regents of The University of Michigan
Inventor： Stephen R. Forrest , Michael Slootsky
CPC classification number: H05B33/22 , H01L51/5265 , H01L51/5271 , H01L2251/5338 , H01L2251/5361 , H05B33/10 , H05B33/26
Abstract: An OLED device includes an OLED structure having a curved shape and/or a concave surface. The OLED structure may function both as light source and as a reflector configured to concentrate light produced by the structure. An OLED may be formed in the shape of a reflector so that light is provided at the concave surface and so that light is reflected from the concave surface at the same location along the surface. The OLED structure can include a flexible substrate formed to shape, along with an organic layer and electrode layers coated over a substrate surface either before or after the substrate is formed. The OLED structure may also include a microcavity OLED, a grating layer, and/or one or more optical elements that alter the characteristics of the light emitted at an aperture of the structure.
Abstract translation: OLED器件包括具有弯曲形状和/或凹面的OLED结构。 OLED结构既可以作为光源又可以作为被配置为集中由该结构产生的光的反射器起作用。 OLED可以形成为反射器的形状，使得在凹面处提供光，并且使得光从沿着表面的相同位置处的凹面反射。 OLED结构可以包括在形成衬底之前或之后形成为形状的柔性衬底以及涂覆在衬底表面上的有机层和电极层。 OLED结构还可以包括改变在结构孔径处发射的光的特性的微腔OLED，光栅层和/或一个或多个光学元件。
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公开(公告)号：US11031569B2
公开(公告)日：2021-06-08
申请号：US16685355
申请日：2019-11-15
Inventor： Stephen R. Forrest , Michael Slootsky , Mark E. Thompson
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.
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公开(公告)号：US10038167B2
公开(公告)日：2018-07-31
申请号：US14991178
申请日：2016-01-08
Applicant: The Regents of the University of Michigan
Inventor： Stephen R. Forrest , Yue Qu , Michael Slootsky
CPC classification number: H01L51/5275 , H01L51/0017 , H01L51/5212 , H01L2251/308
Abstract: An organic light emitting device is described. In certain embodiments, the device has a transparent substrate, a transparent grid layer disposed over the substrate, and an OLED disposed over the grid layer. The OLED can include an anode, a cathode, and at least one organic layer between the anode and cathode. A refractive index of the transparent grid layer is less than or equal to a refractive index of the transparent substrate. In certain embodiments, the at least one organic layer includes an electron transport layer having a thickness of at least 50 nm. In certain embodiments, the refractive index of the transparent grid layer is less than n=1.20, or in certain embodiments, less than n=1.05. Methods of manufacturing an organic light emitting device are also described.
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