Organic light-emitting compound of CIS-diarylethene derivatives, organic electroluminescent device using the same, and method of manufacturing the device
申请人:Shin Dong-Woo
公开号:US20070276160A1
公开(公告)日:2007-11-29
Provided are an organic light-emitting compound that is a diarylethene derivative represented by Formula 1, and an organic electroluminescent (EL) device using the organic light-emitting compound, and a method of manufacturing the organic EL device:
where R
1,
Ar
1,
Ar
2,
Ar
3
, Ar
4
, Ar
5
, Ar
6,
k, l, m, and n are the same as defined in the specification. The organic light-emitting compound contains a cis-diarylethene group linked with an aliphatic ring, and thus crystallization of the organic light-emitting compound is unlikely to occur and the compound is highly soluble to organic solvents and easily provides liquid formulation with organic solvents. Thus, the organic light-emitting compound can easily be used in organic EL devices. An organic EL device manufactured using the compound can have a thermostable layer and thus has improved light-emitting properties in term of superior turn-on voltage, efficiency, color purity, etc.
本发明提供了一种由式子1表示的二芳基乙烯衍生物的有机发光化合物,以及使用该有机发光化合物的有机电致发光(EL)器件和制造该有机EL器件的方法:其中,R1,Ar1,Ar2,Ar3,Ar4,Ar5,Ar6,k,l,m和n与规范中定义的相同。该有机发光化合物包含与脂环相连的顺式二芳基乙烯基团,因此不太可能结晶,且该化合物对有机溶剂具有高溶解度,易于与有机溶剂形成液态配方。因此,该有机发光化合物可以轻松用于有机EL器件。使用该化合物制造的有机EL器件可以具有热稳定层,从而在开启电压、效率、色纯度等方面具有改进的发光性能。