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    • 2. 发明申请
    • BARRIER COATED SUBSTRATE AND ELECTRO-OPTICAL DEVICE
    • 遮蔽涂层基板和电光器件
    • WO2009090423A1
    • 2009-07-23
    • PCT/GB2009/050022
    • 2009-01-13
    • MERCK PATENT GMBHKATHIRGAMANATHAN, Poopathy
    • KATHIRGAMANATHAN, Poopathy
    • H01L51/52H01L51/54
    • H01L51/0097H01L51/0079H01L51/5092H01L51/5256Y02E10/549
    • A plastics substrate for an electro-optical device e.g. in the form of a film or sheet of e.g.polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polybutylene terephthalate (PBT) or other polyester, polyether sulfone (PES), polyether ether ketone (PEEK)has a layer or stacked layers on a surface thereof providing a moistureand/or oxygenbarrier. The barrier layer may comprise poly- p -xylene, poly(2- chloro-1,4-dimethylbenzene) orpoly(1,4-dichloro-2,5-dimethylbenzene), a metal, a metaloxide, or a nitride and may be of thickness 10 mn and 1μm. An OLED may comprise an anode substrate and/or a cathode substrate as aforesaid. In embodiments a method for forming an OLED is provided comprising providing a plastics substrate, depositing one or more metallic or inorganic barrier layers on the substrate by means of atomic layer epitaxy (ALE), atomic layer deposition (ALD) or atomic layer CVD, depositing one or more organic barrier layers onthe metallic or inorganic layers,and depositing OLED-forming layers on the barrier layers.
    • 一种用于电光器件的塑料基板,例如 以聚萘二甲酸乙二醇酯(PEN),聚对苯二甲酸乙二醇酯(PET),聚对苯二甲酸丁二醇酯(PBT)或其他聚酯,聚醚砜(PES),聚醚醚酮(PEEK)等薄膜或片材的形式, 其表面提供水分和/或氧气阻隔物。 阻挡层可以包括聚对二甲苯,聚(2-氯-1,4-二甲苯)或聚(1,4-二氯-2,5-二甲苯),金属,金属氧化物或氮化物,并且可以是 厚度为10毫米和1μm。 如上所述,OLED可以包括阳极衬底和/或阴极衬底。 在实施方案中,提供了一种用于形成OLED的方法,包括提供塑料基材,通过原子层外延(Alle),原子层沉积(ALD)或原子层CVD沉积在基底上沉积一个或多个金属或无机阻挡层 金属或无机层上的一个或多个有机阻挡层,以及在阻挡层上沉积OLED形成层。
    • 3. 发明申请
    • CATHODE COATING
    • WO2008012581A3
    • 2008-01-31
    • PCT/GB2007/050447
    • 2007-07-26
    • OLED-T LIMITEDGANESHAMURUGAN, SubramaniamKATHIRGAMANATHAN, PoopathySURENDRAKUMAR, SivagnanasundramRAVICHANDRAN, SeenivasagamCHAN, Yun, Fu
    • GANESHAMURUGAN, SubramaniamKATHIRGAMANATHAN, PoopathySURENDRAKUMAR, SivagnanasundramRAVICHANDRAN, SeenivasagamCHAN, Yun, Fu
    • H01L51/54
    • Embodiments of electroluminescent devices of the invention are preferably formed of a transparent anode; a layer of a hole transporting material; a layer of an electroluminescent material; a layer of an electron transporting material; a layer of lithium quinolate or of a substituted lithium quinolate e.g. of thickness less than 7 nm; and a metal cathode. The layer of the metal quinolate is preferably about 0.3-0.5 nm in thickness. In an embodiment there is provided an organic light-emitting diode having a cathode, an electron injection layer in contact with the cathode and an electron transport layer in contact with the electron injection layer and comprising aluminium, zirconium or hafnium quinolate or a mixture thereof or a mixture of any of them with a quinolate of a metal of group 1, 2, 3, 13 or 14 of the periodic table, wherein the electron injection layer comprises lithium quinolate or a substituted lithium quinolate having one or more substituents selected from C 1 -C 4 alkyl, monocyclic aryl or aralk-(C 1 -C 4 )-yl, aryloxy or fluoro subject to the proviso that not more than one substituent is C 2 -C 4 alkyl, aralkyl or aryloxy or an oligomer thereof, and wherein the electrode is of aluminium. Such devices may be made by a method including the steps of forming lithium quinolate or a substituted lithium quinolate having one or more substituents selected from C 1 -C 4 alkyl, monocyclic aryl or aralk-(C 1 -C 4 )-yl, aryloxy or fluoro subject to the proviso that not more than one substituent is C 2 -C 4 alkyl, aralkyl or aryloxy by reacting a lithium alkyl or alkoxide with 8-hydroxyquinoline or a derivative thereof in a solvent comprising acetonitrile, and depositing lithium quinolate or a substituted lithium quinolate formed as described above on a cathode of the device to provide an electron injection layer.