公开(公告)号：US11552247B2

公开(公告)日：2023-01-10

申请号：US16821416

申请日：2020-03-17

申请人： The Regents of the University of Michigan ,  Trustees of Boston University

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

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

摘要： 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：US20240206221A1

公开(公告)日：2024-06-20

申请号：US18539591

申请日：2023-12-14

申请人： The Regents of the University of Michigan

发明人： Jeffrey A. Horowitz ,  Claire Arneson ,  Stephen R. Forrest

IPC分类号： H10K50/18 ,  H10K50/13

CPC分类号： H10K50/18 ,  H10K50/13 ,  H10K2102/351

摘要： In one aspect, an organic light emitting device (OLED) comprises a first electrode, a second electrode, an emissive layer between the first and second electrodes, and a blocking layer comprising metal oxide between the emissive layer and the first electrode. In some embodiments, the OLED is configured as a white OLED. In some embodiments, the emissive layer comprises a stack of a plurality of sub-layers. In some embodiments, the blocking layer is deposited via an atomic layer deposition (ALD) tool. In some embodiments, the blocking layer comprises HfO2, Al2O3, ZrO2, ZnO, or MgO.

公开(公告)号：US20200303645A1

公开(公告)日：2020-09-24

申请号：US16821416

申请日：2020-05-05

申请人： The Regents of the University of Michigan

发明人： Stephen R. Forrest ,  Jeffrey A. Horowitz

IPC分类号： H01L51/00 ,  H01L51/56 ,  B81B7/00

摘要： 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.