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公开(公告)号：US20240324264A1
公开(公告)日：2024-09-26
申请号：US18669611
申请日：2024-05-21
发明人： Mark E. Thompson , Abegail Tadle , Muazzam Idris , Karim El Roz , Daniel Sylvinson Muthiah Ravinson , Stephen R. Forrest , Chan Ho Soh
IPC分类号： H10K50/11 , C07D233/58 , C07D401/10 , C09K11/06 , H10K50/125 , H10K85/30 , H10K85/60 , H10K101/00 , H10K101/10 , H10K101/30
CPC分类号： 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
摘要： 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, & 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 T1F≥T1H; S1F≤S1H; and T1P
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公开(公告)号：US20240292734A1
公开(公告)日：2024-08-29
申请号：US18631472
申请日：2024-04-10
发明人： Stephen R. Forrest , Jongchan Kim
CPC分类号： H10K85/346 , H10K30/353 , H10K71/164
摘要： An organic light emitting device (OLED) comprises an anode; a cathode; and a light emitting layer, disposed between the anode and the cathode; wherein the light emitting layer comprises at least one luminescent compound; and wherein the transition dipole moment of the at least one luminescent compound is oriented parallel to the surface of the light emitting layer. A method of fabricating a light emitting layer, comprises the steps of providing a substrate; depositing less than 2 nm of a template material on the substrate; and depositing a composition comprising at least one light emitting compound on the template material.
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公开(公告)号：US20240292638A1
公开(公告)日：2024-08-29
申请号：US18590297
申请日：2024-02-28
发明人： Michael Hack , Stephen R. Forrest
摘要： A transparent organic photovoltaic cell comprises first and second electrodes, and an active layer between the electrodes, comprising a combination of donor and acceptor molecules which are configured absorb light in one or more sub-spectral ranges within a total spectral range of 400 nm to 2000 nm, wherein the photovoltaic cell is configured to be placed in optical communication with a plants such that at least a portion of light not absorbed by the photovoltaic cells is transmitted to the plant.
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公开(公告)号：US11737293B2
公开(公告)日：2023-08-22
申请号：US17666664
申请日：2022-02-08
发明人： Shaocong Hou , Stephen R. Forrest , Bin Liu
CPC分类号： H10K30/87 , H10K30/30 , H10K30/81 , H10K71/221 , H10K85/211
摘要： An organic photovoltaic device comprises a substrate, a reflector positioned over the substrate, a first electrode positioned over at least a first portion of the reflector, a polaritonic antenna layer positioned over a second portion of the reflector different from the first portion, electrically connected to the first electrode, and at least one unit reaction cell positioned over at least part of the first electrode, the at least one unit reaction cell comprising a heterojunction layer comprising a donor material and an acceptor material, positioned over the first electrode, and a second electrode positioned over the heterojunction, wherein the polaritonic antenna and the reflector are configured to convert incoming photonic energy to polaritons. A method of fabricating an organic photovoltaic device is also disclosed.
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公开(公告)号：US11605787B2
公开(公告)日：2023-03-14
申请号：US16761914
申请日：2018-11-05
发明人： Stephen R. Forrest , Yongxi Li , Xiao Liu
IPC分类号： H01L51/00 , C07D495/22 , H01L27/30 , H01L51/42
摘要： 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.
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公开(公告)号：US11569777B2
公开(公告)日：2023-01-31
申请号：US16455015
申请日：2019-06-27
IPC分类号： H02S10/30 , H01L31/0304 , H01L31/0216 , H01L31/056
摘要： Thermophotovoltaic (TPV) systems and devices with improved efficiencies are disclosed herein. In one example, a thermophotovoltaic (TPV) cell includes an active layer; a back-surface reflective (BSR) layer; and a spacer layer positioned between the active layer and back-surface reflective layer.
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公开(公告)号：US20220199932A1
公开(公告)日：2022-06-23
申请号：US17528821
申请日：2021-11-17
发明人： Jongchan Kim , Stephen R. Forrest
摘要： An organic electronic device comprises a substrate, at least one morphological stabilizing layer positioned over the substrate, the morphological stabilizing layer comprising a material having a Tg greater than 50° C., and at least one organic layer positioned in direct contact with the morphological stabilizing layer. A method of making an organic electronic device is also disclosed.
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公开(公告)号：US11362311B2
公开(公告)日：2022-06-14
申请号：US16193105
申请日：2018-11-16
发明人： Stephen R. Forrest , Yue Qu
摘要： Substrates are disclosed that include an embedded or partially-embedded microlens array. Devices are disclosed that include an OLED disposed over a substrate having an embedded or partially embedded micro lens array. Devices as disclosed herein redirect up to 100% of the light that otherwise would be confined in organic and electrode layers toward the substrate and thus provide improved light extraction and device efficiency.
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公开(公告)号：US11349099B2
公开(公告)日：2022-05-31
申请号：US16752553
申请日：2020-01-24
发明人： Yue Qu , Xiaheng Huang , Stephen R. Forrest
摘要： 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.
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公开(公告)号：US11094902B2
公开(公告)日：2021-08-17
申请号：US15030152
申请日：2014-10-27
发明人： Stephen R. Forrest , Xiaozhou Che , Xin Xiao
摘要： A high efficiency small molecule tandem solar cell is disclosed. The tandem cell 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. The device may further include an interconnecting layer, disposed between the first subcell and the second subcell, that is at least substantially transparent.
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