Electroluminescent device with anthracene derivative host
View Patent ↗An OLED device comprises an anode and a cathode and located there-between a light emitting layer containing a light emitting dopant and a host comprising a monoanthracene derivative.
1. An OLED device having an anode and a cathode and located there-between a light emitting layer comprising:
a) a host including a monoanthracene derivative of formula (I):
wherein
R 1 -R 8 are H;
R 9 is an unsubstituted naphthyl;
R 10 is an unsubstituted biphenyl; and
b) a guest emitting material or materials comprising a member selected from the group consisting of derivatives of perylene, quinacridone and aminostyryl in the range of 0.6% to 4% by volume.
2. The OLED device of claim 1 wherein the guest emitting material comprises:
3. The OLED device of claim 2 wherein the guest emitting material includes N,N′-diphenylquinacridone.
4. An OLED device comprising an anode and a cathode and located there-between a light emitting layer containing a light emitting dopant and a host comprising a monoanthracene derivative of formula (I):
wherein
R 1 -R 8 are H;
R 9 is an unsubstituted naphthyl;
R 10 is an unsubstituted biphenyl; and
wherein the OLED device includes one or more light emitting layers with compounds sufficient to emit white light.
5. The OLED device of claim 4 further including a colored filter.
6. An OLED device having an anode and a cathode and located there-between a light emitting layer comprising:
a) a host including a monoanthracene derivative of formula (I):
wherein
R 1 -R 8 are H;
R 9 is an unsubstituted naphthyl;
R 10 is an unsubstituted biphenyl; and
b) a co-host; and
c) a light-emitting dopant, wherein the light emitting dopant comprises a member selected from the group consisting of derivatives of perylene, quinacridone and aminostyryl in the range of 0.6% to 4% by volume.
7. The OLED device of claim 6 wherein the co-host is polymeric.
8. The OLED device of claim 6 wherein the co-host is an oxinoid compound.
9. The OLED device of claim 8 wherein the oxinoid is Alq.
10. The OLED device of claim 6 wherein the co-host comprises a member selected from the group consisting of polyfluorenes, polyvinylarylenes, metal complexes of 8-hydroxyquinoline, benzazole derivatives, distyrylarylenes, and carbazoles.
11. The OLED device of claim 6 wherein the light emitting dopant is N,N′-diphenylquinacridone.
12. An OLED device comprising an anode and a cathode and located there-between a light emitting layer containing a light emitting dopant and a host comprising a monoanthracene derivative of formula (I):
wherein
R 1 -R 8 are H;
R 9 is an unsubstituted naphthyl; and
R 10 is an unsubstituted biphenyl;
wherein the light emitting material comprises a member selected from the group consisting of derivatives of perylene, quinacridone and aminostyryl in the range of 0.6% to 4% by volume; and
wherein the OLED device includes a hole-blocking layer.
13. A light emitting device comprising a plurality of stacked organic light emitting devices wherein at least one light emitting layer contains a light emitting dopant and a host comprising a monoanthracene derivative of formula (I):
wherein
R 1 -R 8 are H;
R 9 is an unsubstituted naphthyl;
R 10 is an unsubstituted biphenyl; and
wherein the light emitting dopant comprises a member selected from the group consisting of derivatives of perylene, quinacridone and aminostyryl in the range of 0.6% to 4% by volume.
14. The OLED device of claim 1 wherein the guest emitting material is a perylene derivative.
15. The OLED device of claim 1 wherein the guest emitting material is a quinacridone derivative.
16. The OLED device of claim 1 wherein the guest emitting material is an aminostyryl derivative.
17. The OLED device of claim 1 wherein the guest emitting material is
18. The OLED device of claim 1 wherein the guest emitting material is
19. The OLED device of claim 1 wherein the guest emitting material is