申请人:MATSUO Shinji
公开号:US20100256377A1
公开(公告)日:2010-10-07
This invention provides an organic EL material useful for the emissive layer of an organic EL element which deteriorates little in luminance when operated over a prolonged period of time and shows excellent durability. The material is an aluminum chelate complex which is represented by general formula (1) in which Ar
1
is a mono- or bicylic arylene group, Ar
2
is a mono- or bicyclic aryl group, R
1
-R
6
are hydrogen or hydrocarbon groups containing 1-8 carbon atoms and contains a compound represented by general formula (1) in which Ar
2
is a halogen as an impurity in an amount of 350 wt ppm or less.
这项发明提供了一种有机EL材料,适用于有机EL元件的发射层,在长时间运行时,其亮度几乎不会退化,并且具有出色的耐久性。该材料是一种铝螯合物复合物,其由一般式(1)表示,其中Ar1是单环或双环芳烃基团,Ar2是单环或双环芳基团,R1-R6是含有1-8个碳原子的氢或烃基团,并且含有一种以卤素为杂质的化合物,其以350重量ppm或更少的量表示。