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    Electroluminescent device comprising a defined layer arrangement comprising a light emitting layer, a hole transport layer and an electron transport layer
    14.
    发明授权
    Electroluminescent device comprising a defined layer arrangement comprising a light emitting layer, a hole transport layer and an electron transport layer 有权

    公开(公告)号：US11411195B2

    公开(公告)日：2022-08-09

    申请号：US16481902

    申请日：2018-01-30

    Applicant: Novaled GmbH

    Inventor： Vygintas Jankus ,  Domagoj Pavicic ,  Carsten Rothe

    IPC: H01L51/50 ,  H01L51/00

    Abstract: The present invention is directed to an electroluminescent device comprising: —at least one node layer, —at least one cathode layer, —at least one light emitting layer, —at least one first hole transport layer, —at least a first electron transport layer; wherein for increasing power efficiency the compositions of the light emitting layer, the hole transport layer and the electron transport layer are matched to one another, wherein—the at least one light emitting layer is arranged between the anode layer and the cathode layer, wherein the at least one light emitting layer comprises: —at least one fluorescent emitter compound embedded in at least one polar emitter host compound, wherein—the at least one polar emitter host compound has at least three aromatic rings, which are independently selected from carbocyclic rings and heterocyclic rings; —the at least one first hole transport layer is arranged between the anode layer and the light emitting layer, wherein the at least one first hole transport layer comprises: —at least one electrical p-dopant, or—at least one electrical p-dopant and at least one first hole transport matrix compound; —the at least one first electron transport layer is arranged between the cathode layer and the light emitting layer, wherein the first electron transport layer comprises: —at least one redox n-dopant, and—at least one first electron transport matrix compound.

    Organic light emitting device comprising polar matrix, metal dopant and silver cathode
    16.
    发明授权
    Organic light emitting device comprising polar matrix, metal dopant and silver cathode 有权

    公开(公告)号：US11355721B2

    公开(公告)日：2022-06-07

    申请号：US15738672

    申请日：2016-06-22

    Applicant: Novaled GmbH

    Inventor： Uwe Gölfert ,  Carsten Rothe ,  Vygintas Jankus

    IPC: H01L51/54 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00

    Abstract: The present invention relates to an electronic device comprising at least one light emitting layer between an anode and a substantially silver cathode, the device further comprising between the cathode and the anode at least one mixed layer comprising (i) at least one substantially covalent electron transport matrix compound comprising at least one polar group selected from phosphine oxide group or diazole group, and (ii) in substantially elemental form, an electropositive element selected from substantially non-radioactive alkali metals, alkaline earth metals, rare earth metals, and transition metals of the fourth period of the Periodic table having proton numbers 22, 23, 24, 25, 26, 27, 28, 29.

    Semiconducting material comprising a phosphine oxide matrix and metal salt
    17.
    发明授权
    Semiconducting material comprising a phosphine oxide matrix and metal salt 有权

    公开(公告)号：US11309495B2

    公开(公告)日：2022-04-19

    申请号：US15564782

    申请日：2016-04-07

    Applicant: Novaled GmbH

    Inventor： Julien Frey ,  Domagoj Pavicic ,  Ulrich Denker ,  Vygintas Jankus ,  Carsten Rothe ,  Francois Cardinali ,  Katja Gräf ,  Ulrich Heggemann ,  Omrane Fadhel

    IPC: H01L51/00 ,  C07F9/53 ,  C07F9/655 ,  H01L51/50

    Abstract: The present invention is directed to a semiconducting material comprising: i) a compound according to formula (I) wherein R1, R2 and R3 are independently selected from C1-C30-alkyl, C3-C30 cycloalkyl, C2-C30-heteroalkyl, C6-C30-aryl, C2-C30-heteroaryl, C1-C30-alkoxy, C3-C30-cycloalkyloxy, C6-C30 aryloxy, and from structural unit having general formula E-A-, wherein—A is a C6-C30 phenylene spacer unit, and—E is an electron transporting unit that is selected from C10-C60 aryl and C6-C60 heteroaryl comprising up to 6 heteroatoms independently selected from O, S, P, Si and B and that comprises a conjugated system of at least 10 delocalized electrons, and—at least one group selected from R1, R2 and R3 has the general formula E-A-; and ii) at least one complex of a monovalent metal having formula (II) wherein—M+ is a positive metal ion bearing a single elementary charge, and each of A1, A2, A3 and A4 is independently selected from H, substituted or unsubstituted C6-C20 aryl and substituted or unsubstituted C2-C20 heteroaryl, wherein a heteroaryl ring of at least 5 ring-forming atoms of the substituted or unsubstituted C2-C20 heteroaryl comprises at least one hetero atom selected from O, S and N.

    Organic Electroluminescent Device
    18.
    发明申请
    Organic Electroluminescent Device 审中-公开

    公开(公告)号：US20190058123A1

    公开(公告)日：2019-02-21

    申请号：US15763910

    申请日：2016-09-27

    Applicant: Novaled GmbH

    Inventor： Domagoj Pavicic ,  Carsten Rothe ,  Vygintas Jankus ,  Regina Luschtinetz ,  Jerome Ganier

    IPC: H01L51/00

    Abstract: The present invention relates to an organic electroluminescent device comprising an anode, a cathode, an emission layer, an undoped electron transport layer comprising a first matrix compound, and an electron injection layer comprising a second matrix compound and an alkali organic complex and/or alkali halide, wherein the undoped electron transport layer and the electron injection layer are arranged between the emission layer and the cathode, wherein the reduction potential of the first matrix compound is less negative than, the reduction potential of 9,10-di(naphthalen-2-yl)anthracene and more negative than the reduction potential of 4,4′-bis(4,6-diphenyl-1,3,5-triazin-2-yl)biphenyl, wherein the reduction potential in both cases is measured against Fc/Fc+ in tetrahydrofurane; and the dipole moment of the first matrix compound is selected ≥0 Debye and ≤2.5 Debye and the dipole moment of the second matrix compound is selected >2.5 and

    Process for Making a Metal Containiner Layer
    19.
    发明申请
    Process for Making a Metal Containiner Layer 审中-公开

    公开(公告)号：US20190006611A1

    公开(公告)日：2019-01-03

    申请号：US15774639

    申请日：2016-11-10

    Applicant: Novaled GmbH

    Inventor： Tomas Kalisz ,  Francois Cardinali ,  Jerome Ganier ,  Uwe Gölfert ,  Vygintas Jankus ,  Carsten Rothe ,  Benjamin Schulze ,  Steffen Willmann

    IPC: H01L51/50 ,  H01L51/00

    Abstract: Process for preparing a metal containing layer, the process comprising (i) at least one step of co-vaporization, at a pressure which is lower than 10−2 Pa, of a) at least one first metal selected from Li, Na, K, Rb and Cs and b) at least one second metal selected Mg, Zn, Hg, Cd and Te from a metal alloy provided in a first vaporization source which is heated to a temperature between 100° C. and 600° C., and (ii) at least one subsequent step of deposition of the first metal on a surface having a temperature which is below the temperature of the first vaporization source, wherein in step (i), the alloy is provided at least partly in form of a homogeneous phase comprising the first metal and the second metal, electronic devices comprising such materials and process for preparing the same.

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