Electronic device including a fluoranthene derivative
View Patent ↗There is provided a compound having Formula I In Formula I: R 1 -R 10 are the same or different and are H, D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl, where no more than two of R 1 -R 10 are biphenyl and where at least two of R 1 -R 10 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 from 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 two of R 1 -R 10 have Formula II
wherein:
Ar is selected from the group consisting of phenyl, naphthyl, 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;
n is an integer ≧2; and
* represents a point of attachment to a fluoranthene core group.
2. The electroactive material of claim 1 , wherein at least one of R 1 -R 6 and at least one of R 7 -R 10 have Formula II.
3. The electroactive material of claim 1 , wherein at least two of R 7 -R 10 have Formula II.
4. An electronic device comprising at least one electroactive layer positioned between two electrical contact layers, wherein the at least one electroactive layer comprises a compound of Formula I according to claim 1 .
5. The device of claim 4 , 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 a compound having Formula I.
6. The device of claim 5 , wherein the photoactive layer comprises (a) a host material which is an electroactive material having Formula I and (b) an organometallic electroluminescent dopant.
7. The device of claim 5 , wherein the electron transport layer comprises an electroactive material having Formula I.
8. A compound selected from the group consisting of Compound E1 through Compound E20,
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 selected from the group consisting of O-heteroaryl 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;
m is an integer from 0-4;
n is an integer from 1-5; and
* represents a point of attachment to a fluoranthene core group.
10. The electroactive material of claim 9 , wherein Ar is an O-heteroaryl selected from the group consisting of furan, (di)benzofuran, and deuterated analogs thereof.