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    Electron transport layer comprising a matrix compound mixture for an organic light-emitting diode (OLED)
    1.
    发明授权
    Electron transport layer comprising a matrix compound mixture for an organic light-emitting diode (OLED) 有权

    公开(公告)号：US12161044B2

    公开(公告)日：2024-12-03

    申请号：US17398835

    申请日：2021-08-10

    Applicant: NOVALED GMBH

    Inventor： Jerome Ganier ,  Carsten Rothe ,  Volodymyr Senkovskyy

    IPC: H10K85/30 ,  H10K50/16 ,  H10K50/165 ,  H10K50/17 ,  H10K71/00 ,  H10K71/12 ,  H10K71/16 ,  H10K85/60 ,  H10K102/00

    Abstract: The present invention is directed to an organic light emitting diode (100) comprising: at least one anode electrode (120); at least one emission layer (150), wherein the emission layer comprises at least one emitter dopant that emits visible light at operation of the OLED (100); an electron transport layer stack (160) of at least two electron transport layers (161/162), and wherein a) the first electron transport layer (161) comprises i) a first organic aromatic matrix compound having a MW of about ≥400 to about ≤1000 and a dipole moment of about ≥0 Debye and about ≤2.5 Debye, wherein the first electron transport layer (161) is free of a polar organic aromatic phosphine compound; and b) the second electron transport layer (162) comprises two organic aromatic matrix compounds, which are a mixture of: i) the first organic aromatic matrix compound; and ii) a polar organic aromatic phosphine compound having a MW of about ≥400 to about ≤1000, and a dipole moment of about >2.5 Debye and about ≤10 Debye; and at least one cathode electrode layer (190); wherein the electron transport layer stack (160) is arranged between the emission layer (150) and the cathode electrode layer (190), the first electron transport layer (161) is in direct contact with the second electron transport layer (162), and wherein the first electron transport layer (161) is arranged nearer to the emission layer (150) and the second electron transport layer (162) is arranged nearer to the cathode electrode layer (190).

    Method for Preparing an Organic Semiconducting Layer, a Composition for Use Therein and an Organic Electronic Device
    3.
    发明申请
    Method for Preparing an Organic Semiconducting Layer, a Composition for Use Therein and an Organic Electronic Device 有权

    公开(公告)号：US20220131115A1

    公开(公告)日：2022-04-28

    申请号：US17428793

    申请日：2020-02-05

    Applicant: Novaled GmbH

    Inventor： Volodymyr Senkovskyy ,  Pierre Seidenglanz ,  Peter Robaschik ,  Ulrich Denker ,  Stefan Zott ,  Anne Fadhel ,  Martin Ammann ,  Regina Luschtinetz

    IPC: H01L51/56 ,  H01L51/00 ,  C07C13/66 ,  C09K11/06 ,  C07C15/28 ,  C07D251/24 ,  C07D221/18 ,  C07D405/04 ,  C07D409/04 ,  C07D405/10 ,  C07D307/91

    Abstract: The present invention relates to a method for preparing an organic semiconducting layer comprising the steps: a) providing a first composition in a first vacuum thermal evaporation source, the first composition comprising aa) a first organic compound, the first organic compound comprising at least one unsubstituted or substituted C10-C30 condensed aryl group and/or at least one unsubstituted or substituted C3-C30 heteroaryl group, wherein the one or more substituent(s) if present, are selected from the group consisting of (i) deuterium, (ii) a halogen, (iii) a C1 to C22 silyl group, (iv) a C1 to C30 alkyl group, (v) a C1 to C10 alkylsilyl group, (vi) a C6 to C22 arylsilyl group, (vii) a C3 to C30 cycloalkyl group, (viii) a C2 to C30 heterocycloalkyl group, (ix) a C6 to C30 aryl group, (x) a C2 to C30 heteroaryl group, (xi) a C1 to C30 perfluoro-hydrocarbyl group, or (xii) a C1 to C10 trifluoroalkyl group, wherein the first organic compound has i) a dipole moment in the range of ≥0 and ≤2 Debye; and ii) a molecular weight in the range of ≥400 and ≤1,800; and bb) a metal borate compound; b) transferring the first composition from the solid phase into the gas phase in a vacuum chamber; and c) depositing the first composition on a substrate to form the organic semiconducting layer, a composition for use therein, and an organic electronic device prepared this way.

    Organic electroluminescent device
    4.
    发明授权
    Organic electroluminescent device 有权

    公开(公告)号：US11183649B2

    公开(公告)日：2021-11-23

    申请号：US15983197

    申请日：2018-05-18

    Applicant: NOVALED GMBH

    Inventor： Mauro Furno ,  Volodymyr Senkovskyy

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

    Abstract: The present invention relates to an organic electroluminescent device comprising a first electrode, at least one second electrode, at least one emission layer and at least one electron transport region, wherein the emission layer and the electron transport region are arranged between the at least one second electrode and the first and the electron transport region is arranged between the emission layer and the at least one second electrode, wherein the at least one electron transport region comprises a first electron transport layer, the first electron transport layer preferably not comprising an n-type dopant; and a performance enhancement layer, the performance enhancement layer having a refractive index of ≤1.6 at a wavelength of 1,200 nm; wherein the first electron transport layer is arranged between the emission layer and the performance enhancement layer; and the performance enhancement layer is arranged between the first electron transport layer and the at least one second electrode.

    Organic light-emitting diode comprising different matrix compounds in the first and second electron transport layer
    7.
    发明授权
    Organic light-emitting diode comprising different matrix compounds in the first and second electron transport layer 有权

    公开(公告)号：US11081652B2

    公开(公告)日：2021-08-03

    申请号：US15572336

    申请日：2016-05-11

    Applicant: Novaled GmbH

    Inventor： Ulrich Denker ,  Mike Zöllner ,  Katja Gräf ,  Volodymyr Senkovskyy ,  Bodo Wallikewitz ,  Johannes Scholz ,  Julien Frey

    IPC: H01L51/00 ,  C07D401/14 ,  C07D405/14 ,  C07D401/04 ,  H01L51/50 ,  H01L51/56

    Abstract: The present invention is directed to matrix compounds and an organic light-emitting diode (OLED) comprising an emission layer and an electron transport layer stack of at least two electron transport layers, wherein a first electron transport layer and a second electron transport layer comprises at least one matrix compound, wherein the matrix compound or compounds of the first electron transport layer is/are different to the matrix compound or compounds of the second electron transport layer; and in addition, the first electron transport layer comprises a dopant of a lithium halide and/or lithium organic complex; and the second electron transport layer is free of a dopant; wherein at least one matrix compound of the second electron transport layer having the chemical formula Ia, Ib and/or Ic: (Ia) (Ib) (Ic) wherein Ar=substituted or unsubstituted arylene with 6 to 20 ring-forming carbon atoms; or carbazolylene; ET=substituted or unsubstituted aryl group with 13 to 40 ring-forming carbon atoms; or a substituted or unsubstituted heteroaryl group with 14 to 40 ring-forming atoms.

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