Provided is an electroluminescent device including an organic layer interposed between an anode and a cathode on a substrate, wherein the organic layer includes an electroluminescent layer containing one or more dopant compound(s) represented by Chemical Formula 1 and one or more host compound(s) represented by Chemical Formula 2:
with the proviso that at least one of Ar1 through Ar4 is 1- or 2-naphthyl with or without substituent; and
Ar10-(An)a-Ar20 (2)
Including an electroluminescent compound with an arylamine group substituted by at least one of 1- or 2-naphthyl, the disclosed electroluminescent device exhibits superior luminous efficiency, excellent color purity and very good operation life.
本发明提供了一种电致发光器件,该器件包括夹在基底上阳极和阴极之间的有机层,其中有机层包括电致发光层,该层含有一种或多种由
化学式 1 表示的掺杂化合物和一种或多种由
化学式 2 表示的宿主化合物:
但 Ar1 至 Ar4 中至少有一个是 1-或 2-
萘基,带或不带取代基;以及
Ar10-(An)a-Ar20 (2)
包括具有被 1-或 2-
萘基中至少一个取代的芳基胺基团的电致发光化合物,所公开的电致发光器件具有优异的发光效率、极佳的色纯度和非常长的使用寿命。