Electronic device including a fluoranthene derivative
There is provided a compound having Formula I. In Formula I: R 3 -R 16 are the same or different and are H, D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl, where no more than two R 1 -R 16 are biphenyl and where at least two of R 1 -R 16 have Formula II. In Formula II: Ar is phenyl, naphthyl, heteroaryl, spirofluorenyl, or a deuterated analog thereof; R 11 is the same or different at each occurrence and is D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl, where adjacent R 11 groups can join to form a fused aromatic ring or fused deuterated aromatic ring; m is an integer form 0-4; n is an integer from 1-5; and the asterisk represents a point of attachment.
1. An electroactive material having Formula I
wherein:
R 1 -R 10 are the same or different and are selected from the group consisting of H, D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl;
with the proviso that no more than one of R 1 -R 10 is biphenyl and at least one of R 1 -R 6 and at least one of R 7 -R 10 have Formula II
wherein:
Ar is selected from the group consisting of S-heteroaryl, N,O-heteroaryl, N,S-heteroaryl, spirofluorenyl, and deuterated analogs thereof;
R 11 is the same or different at each occurrence and is selected from the group consisting of D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl, wherein adjacent R 11 groups can join to form a fused aromatic ring or fused deuterated aromatic ring;
m is an integer from 0-4; and
n is an integer from 1-5.
2. The electroactive material of claim 1 , wherein at least two of R 7 -R 10 have Formula II.
3. The electroactive material of claim 1 , wherein Ar is an N,O-heteroaryl selected from the group consisting of oxazole, benzoxazole, and deuterated analogs thereof.
4. The electroactive material of claim 1 , wherein Ar is an N,S-heteroaryl selected from the group consisting of thiazole, benzothiazole, and deuterated analogs thereof.
5. An electronic device comprising at least one electroactive layer positioned between two electrical contact layers, wherein the at least one electroactive layer comprises the electroactive material having Formula I according to claim 1 .
6. The device of claim 5 , comprising an anode, a hole transport layer, a photoactive layer, an electron transport layer, and a cathode, wherein at least one of the photoactive layer and the electron transport layer comprises the electroactive material having Formula I.
7. The device of claim 5 , wherein the photoactive layer comprises (a) a host material which is the electroactive material having Formula I and (b) an organometallic electroluminescent dopant.
8. The device of claim 5 , wherein the electron transport layer comprises the electroactive material having Formula I.
9. An electroactive material having Formula I
wherein:
R 1 -R 10 are the same or different and are selected from the group consisting of H, D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl;
with the proviso that no more than one of R 1 -R 10 is biphenyl and at least two of R 1 -R 10 have Formula II
wherein:
Ar is an S-heteroaryl selected from the group consisting of thiophene, (di)benzothiophene, thienothiophene, and deuterated analogs thereof;
R 11 is the same or different at each occurrence and is selected from the group consisting of D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl, wherein adjacent R 11 groups can join to form a fused aromatic ring or fused deuterated aromatic ring;
m is an integer from 0-4; and
n is an integer from 1-5.
10. An electronic device comprising at least one electroactive layer positioned between two electrical contact layers, wherein the at least one electroactive layer comprises the electroactive material having Formula I according to claim 9 .
11. The device of claim 10 , comprising an anode, a hole transport layer, a photoactive layer, an electron transport layer, and a cathode, wherein at least one of the photoactive layer and the electron transport layer comprises the electroactive material having Formula I.
12. The device of claim 10 , wherein the photoactive layer comprises (a) a host material which is the electroactive material having Formula I and (b) an organometallic electroluminescent dopant.
13. The device of claim 10 , wherein the electron transport layer comprises the electroactive material having Formula I.
14. An electroactive material having Formula I
wherein:
R 1 -R 10 are the same or different and are selected from the group consisting of H, D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl;
with the proviso that no more than one of R 1 -R 10 is biphenyl and at least two of R 1 -R 10 have Formula II
wherein:
Ar is selected from the group consisting of spirofluorenyl and a deuterated analog thereof;
R 11 is the same or different at each occurrence and is selected from the group consisting of D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl, wherein adjacent R 11 groups can join to form a fused aromatic ring or fused deuterated aromatic ring;
m is an integer from 0-4; and
n is an integer from 1-5.
15. The electroactive material of claim 14 , wherein Ar is selected from the group consisting of
where:
R″ is the same or different at each occurrence and is selected from the group consisting of H, D, C 1-12 alkyl, and deuterated C 1-12 alkyl, and positions available for H can be H or D, and
* indicates a point of attachment.
16. An electronic device comprising at least one electroactive layer positioned between two electrical contact layers, wherein the at least one electroactive layer comprises the electroactive material having Formula I according to claim 14 .
17. The device of claim 16 , comprising an anode, a hole transport layer, a photoactive layer, an electron transport layer, and a cathode, wherein at least one of the photoactive layer and the electron transport layer comprises the electroactive material having Formula I.
18. The device of claim 16 , wherein the photoactive layer comprises (a) a host material which is the electroactive material having Formula I and (b) an organometallic electroluminescent dopant.
19. The device of claim 16 , wherein the electron transport layer comprises the electroactive material having Formula I.