ORGANIC LIGHT-EMITTING DEVICE

摘要

An organic light-emitting device comprising: an anode; a cathode; a light-emitting layer located between the anode and the cathode, said light-emitting layer containing a light-emitting metal complex comprising general formula (1) where M represents Re<SUP>(I)</SUP>, W<SUP>(0)</SUP>, Ir<SUP>(III)</SUP>, or Os<SUP>(II)</SUP>; L<SUB>1</SUB> represents a tridentate ligand; and L<SUB>2</SUB>, L<SUB>3</SUB> and L<SUB>4</SUB> represent ligands, characterised in that L<SUB>1</SUB> comprises general formula (2) where R<SUB>1</SUB> represents a bridging group; and Ar<SUP>1</SUP>, Ar<SUP>2</SUP> and Ar<SUP>3</SUP> each independently represents a group comprising a heteroaryl ring and * indicates coordination to M.