Light-emitting element and iridium complex
View Patent ↗Iridium compounds having at least two 2-arylpyridine ligands in which a non-hydrogen atom group is substituted at the 4-position of the pyridine ring, and light-emitting elements comprising on organic layer comprising at least one of the iridium compounds are disclosed.
1. A light-emitting material comprising a compound chosen from Formulae (8), (9), and (15):
2. A light-emitting element, comprising:
an anode;
a cathode; and
an organic layer comprising a light-emitting layer disposed between the anode and the cathode;
wherein the light-emitting layer comprises at least one compound chosen from Formulae (8), (9), and (15):
3. The light-emitting element of claim 2 , wherein the organic layer further comprises an electron transporting layer disposed between the cathode and the light-emitting layer, and a hole transporting layer disposed between the light-emitting layer and the anode.
4. The light-emitting element of claim 3 , wherein the organic layer further comprises a hole blocking layer disposed between the electron transporting layer and the light-emitting layer, and a hole injection layer disposed between the hole transporting layer and the anode.
5. The light-emitting element of claim 2 , comprising an optically reflective layer disposed over the anode, and wherein the cathode is optically transparent.
6. A light-emitting material comprising a compound chosen from Formulae (18), (19), (24), (26), (27) and (31):
7. A light-emitting element comprising
an anode;
a cathode; and
an organic layer comprising a light-emitting layer disposed between the anode and the cathode;
wherein the light-emitting layer comprises at least one compound chosen from Formulae (18), (19), (24), (26), (27) and (31):
8. The light-emitting element of claim 7 , wherein the organic layer further comprises an electron transporting layer disposed between the cathode and the light-emitting layer, and a hole transporting layer disposed between the light-emitting layer and the anode.
9. The light-emitting element of claim 8 , wherein the organic layer further comprises a hole blocking layer disposed between the electron transporting layer and the light-emitting layer, and a hole injection layer disposed between the hole transporting layer and the anode.
10. The light-emitting element of claim 7 , comprising an optically reflective layer disposed over the anode, and wherein the cathode is optically transparent