Provided is an organic electroluminescent device having high efficiency and high driving stability while being driven at a low voltage. The organic electroluminescent device is an organic electroluminescent device including a light-emitting layer between an anode and a cathode opposite to each other, in which: the light-emitting layer contains two kinds of host materials and a light-emitting dopant; and a first host material (H1) out of the two kinds of host materials is an indolocarbazole-based compound having one or two indolocarbazole rings, and a second host material (H2) out of the materials is a host material selected from carbazole-based compounds each represented by the general formula (3), the compounds each having a structure in which two carbazole rings are bonded through a six-membered aromatic ring.
本发明提供了一种在低电压驱动下具有高效率和高驱动稳定性的有机电致发光器件。该有机电致发光器件是一种有机电致发光器件,包括位于相对的阳极和阴极之间的发光层,其中发光层包含两种宿主材料和一种发光掺杂剂;两种宿主材料中的第一种宿主材料(H1)是具有一个或两个
吲哚咔唑环的
吲哚咔唑基化合物,而材料中的第二种宿主材料(H2)是选自通式(3)表示的
咔唑基化合物的宿主材料,这些化合物各自具有两个
咔唑环通过一个六元芳香环键合的结构。