NOVEL BENZOTRIAZOLE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICES USING THE DERIVATIVES
申请人:HODOGAYA CHEMICAL CO., LTD.
公开号:US20140374721A1
公开(公告)日:2014-12-25
Benzotriazole derivatives represented by the following general formula (1),
wherein Ar
1
and Ar
2
are, for example, aromatic hydrocarbon groups or aromatic heterocyclic ring groups, and A is a group including a pyridine ring. The compounds excel in electron injection/transport capability, feature a high hole-blocking power and a high stability in their thin-film form, and are useful as materials for producing highly efficient and highly durable organic electroluminescent devices.