Chrysene compounds for luminescent applications
View Patent ↗This invention relates to chrysene compounds that are useful in electroluminescent applications. It also relates to electronic devices in which the active layer includes such a chrysene compound.
1. A compound having Formula I:
wherein:
R 1 , R 2 , R 3 and R 4 are the same or different and are selected from the group consisting of H and D;
R 5 and R 6 are the same or different and are selected from the group consisting of D, alkyl groups, silyl groups, m-phenyl, o-phenyl, p-phenyl, m-carbazolyl, and p-carbazolyl;
R 7 is the same or different at each occurrence and is selected from the group consisting of D, alkyl groups, silyl groups, phenyl, and biphenyl, or two adjacent R 7 groups can join together to form a naphthyl or fluorenyl group;
a and b are the same or different and are an integer from 1-3;
c and d are the same or different and are an integer from 1-5;
f, g, h, and i, are the same or different at each occurrence and are an integer from 0-4; and
e and j are the same or different at each occurrence and are an integer from 0-5.
2. The compound of claim 1 , wherein each of R 1 through R 4 is H.
3. The compound of claim 1 , wherein R 5 and R 6 are hydrocarbon alkyl groups having 1-6 carbon atoms.
4. The compound of claim 1 , wherein c=d=1 or 2.
5. The compound of claim 1 , wherein R 5 and R 6 are aromatic groups selected from the group consisting of o-phenyl, m-phenyl, and m-carbazolyl groups.
6. The compound of claim 1 , wherein R 7 is a hydrocarbon alkyl group having 1-10 carbon atoms.
7. The compound of claim 1 , wherein e=f=g=h=i=j=0.
8. The compound of claim 1 , wherein a=b.
9. The compound of claim 1 , wherein a=b=1-3.
10. An organic electronic device comprising a first electrical contact layer, a second electrical contact layer, and at least one active layer therebetween, wherein the active layer comprises a compound having Formula I:
wherein:
R 1 , R 2 , R 3 and R 4 are the same or different and are selected from the group consisting of H and D;
R 5 and R 6 are the same or different and are selected from the group consisting of D, alkyl groups, silyl groups, m-phenyl, o-phenyl, p-phenyl, m-N-carbazolyl, and p-N-carbazolyl;
R 7 is the same or different at each occurrence and is selected from the group consisting of D, alkyl groups, silyl groups, phenyl, and biphenyl, or two adjacent R 7 groups can join together to form a naphthyl or fluorenyl group;
a and b are the same or different and are an integer from 1-3;
c and d are the same or different and are an integer from 1-5;
f, g, h, and i, are the same or different at each occurrence and are an integer from 0-4; and
e and j are the same or different at each occurrence and are an integer from 0-5.
11. The device of claim 10 , wherein R 1 through R 4 is H.
12. The device of claim 10 , wherein R 5 and R 6 are hydrocarbon alkyl groups having 1-6 carbon atoms.
13. The device of claim 10 , wherein R 5 and R 6 are aromatic groups selected from the group consisting of o-phenyl, m-phenyl, and m-carbazolyl groups.
14. The device of claim 10 , wherein R 7 is a hydrocarbon alkyl group having 1-10 carbon atoms.
15. The device of claim 10 , wherein a=b.
16. The device of claim 10 , wherein a=b=1-3.
17. The device of claim 10 , wherein the compound of Formula I is selected from E1 through E28.
18. The device of claim 10 , wherein the active layer is a photoactive layer and further comprises a host material.
19. The device of claim 18 , further comprising a buffer layer between the first electrical contact layer and the active layer.
20. The device of claim 19 , wherein the buffer layer comprises at least one electrically conductive polymer and at least one fluorinated acid polymer.