发明名称 Composite material, and light emitting element and light emitting device using the composite material
摘要 An object is to provide a light emitting element with low drive voltage which contains an organic compound and an inorganic compound. One feature of a light emitting element of the present invention is to include a layer containing a light emitting material between a pair of electrodes, in which the layer containing a light emitting material has a layer containing a carbazole derivative represented by General Formula (1) and an inorganic compound which exhibits an electron accepting property to the carbazole derivative represented by General Formula (1). With such a structure, the inorganic compound accepts electrons from the carbazole derivative, carriers are generated internally, and a drive voltage of the light emitting element can be reduced.
申请公布号 US8405070(B2) 申请公布日期 2013.03.26
申请号 US20090575488 申请日期 2009.10.08
申请人 IWAKI YUJI;SEO SATOSHI;KUMAKI DAISUKE;NAKASHIMA HARUE;KOJIMA KUMI;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 发明人 IWAKI YUJI;SEO SATOSHI;KUMAKI DAISUKE;NAKASHIMA HARUE;KOJIMA KUMI
分类号 H01L35/24 主分类号 H01L35/24
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