Organic electroluminescent element material and organic electroluminescent element
申请人:——
公开号:US20030138663A1
公开(公告)日:2003-07-24
This invention relates to a low-molecular-weight compound which is soluble in solvents and useful for a luminescent material and to an organic electroluminescent element (EL element) which comprises said luminescent material in its electroluminescent layer.
The EL element comprises an EL material represented by the following formula (1) between electrodes at least one of which is transparent.
1
In formula (1), Ar
1
is a group represented by the following formula (2), Ar
2
is a group represented by the following formula (3) or (4) and Ar
1
and Ar
2
may condense to form a 10-membered ring in case Ar
2
is represented by the following formula (3)
2
wherein R
1
-R
4
and R
5
are hydrogen, alkyl, aryl and the like, Z is a divalent or trivalent metal such as zinc, aluminum, copper, beryllium, ruthenium, cobalt, rhodium, iridium and platinum and n is 2 or 3.
本发明涉及一种低分子量化合物,其可溶于溶剂且用于发光材料,并涉及一种有机电致发光元件(EL元件),其在其电致发光层中包含所述发光材料。该EL元件在至少一个透明电极之间包含由以下式(1)表示的EL材料。
式(1)中,Ar1是由以下式(2)表示的基团,Ar2是由以下式(3)或(4)表示的基团,且当Ar2由以下式(3)表示时,Ar1和Ar2可缩合形成10元环。其中,R1-R4和R5是氢、烷基、芳基等,Z是二价或三价金属,例如锌、铝、铜、铍、钌、钴、铑、铱和铂,n为2或3。