Metal-containing dendrimers
View Patent ↗This invention relates to a hat emitting device which comprises at least one layer that contains an organometallic dendrimer having a core comprising a metal cation. The invention also relates to organometallic dendrimers and methods for producing the same.
1. A light emitting device which comprises at least one layer that contains an organometallic dendrimer with an iridium cation as part of its core, said core not comprising a magnesium chelated porphyrin.
2. A device according to claim 1 wherein light emitting device contains a light emitting layer and the dendrimer is in the light emitting layer.
3. A device according to claim 2 which comprises in addition to the light emitting layer at least one charge transporting and/or injecting layer.
4. A device according to claim 1 wherein the dendrimer is a light emitting material.
5. A device according to claim 1 wherein the dendrimer is present as a homogeneous layer.
6. A device according to claim 1 wherein the dendrimer is fluorescent in the solid state.
7. A device according to claim 1 wherein the dendrimer is phosphorescent in the solid state.
8. A device according to claim 1 wherein the dendrimer has at least one inherently at least partially conjugated dendron.
9. A device according to claim 8 wherein the dendrimer has at least 2 inherently at least partially conjugated dendrons.
10. A device according to claim 9 wherein all the dendrons are inherently at least partially conjugated.
11. A device according to claim 1 wherein the dendrimer is blended with at least one other dendrimer and/or polymer and/or molecular material.
12. A device according to claim 11 wherein the organometallic dendrimer is phosphorescent in the solid state and is blended with a corresponding non-metallic dendrimer which possesses the same dendritic structure as that of the organometallic dendrimer.
13. A device according to claim 11 wherein the molar ratio of organometallic dendrimer to other component is from 1:1 to 1:100.
14. A device according to claim 11 wherein the dendrimer is phosphorescent and is blended with a fluorescent host.
15. A device according to claim 1 wherein the dendrimer is blended with at least one other dendrimer and/or polymer and/or molecular material.
16. A device which comprises at least one layer that contains an organometallic dendrimer with an iridium cation as part of its core, said core not comprising a magnesium chelated porphyrin.
17. A device according to claim 16 wherein the dendrimer is present as a homogeneous layer.
18. A device according to claim 16 wherein the dendrimer has at least one inherently at least partially conjugated dendron.
19. A device according to claim 18 wherein all the dendrons are inherently at least partially conjugated.
20. A device according to claim 16 wherein the dendrimer is phosphorescent and is blended with a fluorescent host.