Method for Preparing an Organic Semiconducting Layer, a Composition for Use Therein and an Organic Electronic Device

    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

    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 Light Emitting Device and a Compound for Use Therein

    公开(公告)号:US20220029103A1

    公开(公告)日:2022-01-27

    申请号:US17296018

    申请日:2019-12-16

    Applicant: Novaled GmbH

    Abstract: The present invention relates to a organic light emitting device comprising a cathode, an anode, a light emitting layer, at least one first electron transport layer and at least one second electron transport layer, wherein the light emitting layer, the first electron transport layer and the second electron transport layer are arranged between the cathode and the anode, wherein the first electron transport layer comprises a compound of formula (I) and the second electron transport layer comprises a compound of formula (II) as well as to a compound for use in an organic electronic device.

    Organic light-emitting diode comprising different matrix compounds in the first and second electron transport layer

    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

    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.

    Electrically doped organic semiconducting material and organic light emitting device comprising it

    公开(公告)号:US10862052B2

    公开(公告)日:2020-12-08

    申请号:US15323361

    申请日:2015-06-26

    Applicant: Novaled GmbH

    Abstract: The invention relates to electrically doped semiconducting material comprising iii) at least one electrical dopant selected from metal salts consisting of at least one metal cation and at least one anion and iv) at least one matrix compound of formula 1 wherein each of R1, R2, R1, R2′ is independently selected from H, C1-C6 alkyl, C1-C6 haloalkyl and C6-C14 aryl or both substituents on the same aromatic ring of the xanthene skeleton are hydrocarbyl groups linked with each other to form together an anelated divalent C2-C10 hydrocarbyl group and A and A′ are independently selected from C1-C20 heteroaryl group comprising at least one sp2 hybridized nitrogen atom as well as an electronic device and a compound.

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