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    Blue-emitting materials and electroluminescent devices containing these materials
    5.
    发明授权
    Blue-emitting materials and electroluminescent devices containing these materials 失效
    蓝色发光材料和含有这些材料的电致发光器件

    公开(公告)号：US5904994A

    公开(公告)日：1999-05-18

    申请号：US673864

    申请日：1996-07-02

    申请人： Ananth Dodabalapur ,  Rebecca Jordan ,  Marko Strukelj

    发明人： Ananth Dodabalapur ,  Rebecca Jordan ,  Marko Strukelj

    IPC分类号： H04N5/70 ,  C09K11/06 ,  H01L33/00 ,  H01L51/50 ,  H05B33/12 ,  H05B33/14 ,  H05B33/22 ,  H05B33/00

    CPC分类号： H05B33/14 ,  C09K11/06 ,  H01L51/0067 ,  H01L51/0069 ,  H01L51/5012 ,  H01L51/0081 ,  Y02B20/181 ,  Y10S428/917 ,  Y10T428/26 ,  Y10T428/31678

    摘要： A class of blue emitting materials, that, when placed in EL devices with an emitter layer and a hole transporter layer, provide EL devices that emit white light. The blue-emitting material has a non-polymeric molecular structure that comprises a five or six-membered heterocyclic moiety selected from the groups consisting of oxazole, imidazole, quinoline and pyrazine with at least three substituents pendant thereto. The blue-emitting materials of the present invention have certain characteristics that allow them to be formed into films with advantageous properties. The films formed from these materials are amorphous (i.e they have a crystal size less than about 1000 .ANG.). The thickness of the films of the blue-emitting material is less than 600 .ANG. in the devices of the present invention.

    摘要翻译： 一类蓝色发光材料，当放置在具有发射极层和空穴传输层的EL器件中时，提供发射白光的EL器件。 蓝色发光材料具有非聚合分子结构，其包含选自由恶唑，咪唑，喹啉和吡嗪组成的组中的至少三个取代基的五或六元杂环部分。 本发明的蓝色发光材料具有允许它们形成具有有利性质的膜的某些特性。 由这些材料形成的膜是非晶的（即它们具有小于约1000的晶体尺寸）。 在本发明的装置中，蓝色发光材料的膜的厚度小于600。