ELECTRON TRANSPORTING MATERIALS AND ORGANIC LIGHT-EMITTING DEVICES THEREWITH
申请人:KIMURA Masato
公开号:US20090042061A1
公开(公告)日:2009-02-12
The present invention provides a novel electron transporting material having good heat resistance and being capable of forming devices with high thermal characteristics and an organic light-emitting device therewith. The phenanthroline derivative represented by the general formula below is used as the electron transporting material to form the organic light-emitting device:
wherein the position of the substituent R
6
or R
7
depends on the position of the linkage between the phenanthrolinyl group and the fluorenyl group; X represents a single bond between the phenanthrolinyl group and the fluorenyl group; n
0
and n
1
each independently represent an integer of 0 to 2; and n
2
and n
3
each represent the number of the substituents and each independently represent an integer of 1 to 4.