Emitting complex for electroluminescent devices
View Patent ↗An OLED device including a cathode, an anode, and having therebetween a phosphorescent light-emitting layer that contains a light-emitting organometallic complex including a precious metal, a first ligand including an imidazole group and a second nitrogen heterocycle group, and at least one second different ligand.
1. An OLED device comprising a cathode, an anode, and having therebetween a phosphorescent light-emitting layer that contains a light-emitting organometallic complex represented by Formula 2:
wherein the device emits blue light.
2. The OLED device of claim 1 wherein the light-emitting organometallic complex is a dopant compound disposed in a host material.
3. The OLED device of claim 2 wherein the dopant compound is present in an amount of up to 15% by weight based on the host material.
4. The OLED device of claim 2 wherein the host material includes a nitrogen heterocyclic host compound.
5. The OLED device of claim 2 wherein the host material includes an organic phosphineoxide host compound.
6. The OLED device of claim 2 wherein the host material includes an organosilane host compound.
7. An OLED device comprising a cathode, an anode, and having therebetween a phosphorescent light-emitting layer that contains a light-emitting organometallic complex represented by Formula 3:
wherein the device emits blue light.
8. The OLED device of claim 7 wherein the light-emitting organometallic complex is a dopant compound disposed in a host material.
9. The OLED device of claim 8 wherein the dopant compound is present in an amount of up to 15% by weight based on the host material.
10. The OLED device of claim 8 wherein the host material includes a nitrogen heterocyclic host compound.
11. The OLED device of claim 8 wherein the host material includes an organic phosphineoxide host compound.
12. The OLED device of claim 8 wherein the host material includes an organosilane host compound.