OPTOELECTRONIC DEVICES AND ORGANIC COMPOUNDS USED THEREIN
申请人:Ye Qing
公开号:US20100270537A1
公开(公告)日:2010-10-28
An optoelectronic device comprises a cathode; an electron-transporting layer comprising a compound of formula I;
a light emitting-layer; and an anode; wherein R
1
and R
2
are independently at each occurrence, hydrogen, a C
1
-C
20
aliphatic radical, a C
3
-C
20
aromatic radical, or a C
3
-C
20
cycloaliphatic radical; R
3
is H or alkyl; a and b are, independently at each occurrence 0, or an integer ranging from 1 to 3; n is 2 or 3; and Ar is an aryl.