Electron transport materials for electronic applications
There is provided a compound having Formula I In Formula I: E 1 -E 4 are CH, CD, or N, where one and only one of E 1 -E 4 is N; Ar 1 is an N-heterocycle or a deuterated N-heterocycle; Ar 2 is aryl, heteroaryl, diarylamino, or deuterated analogs thereof; R 1 and R 2 are the same or different and are D, alkyl, silyl, aryl, heteroaryl, deuterated alkyl, deuterated silyl, deuterated aryl, or deuterated heteroaryl; and a and al are the same or different and are integers from 0-3.
1. A compound having Formula II
wherein:
Ar 1 is selected from the group consisting of an N-heterocycle and a substituted N-heterocycle, wherein substituents of the substituted N-heterocycle are selected from the group consisting of D, alkyl, silyl, germyl, hydrocarbon aryl, alkylaryl, silylaryl, heteroaryl, deuterated analogs thereof, and combinations thereof;
Ar 2 selected from the group consisting of diarylamino,
substituted derivatives thereof, and deuterated analogs thereof, where Y is an aryl group and attached to N-carbazolyl of Formula II;
R 1 and R 2 are the same or different at each occurrence and are selected from the group consisting of D, alkyl, silyl, germyl, hydrocarbon aryl, heteroaryl, and deuterated analogs thereof; and
a and al are the same or different and are integers from 0-3.
2. The compound of claim 1 , wherein the N-heterocycle and substituted N-heterocycle are selected from the group consisting of pyridine, pyrimidine, triazine, and a deuterated analog thereof.
3. The compound of claim 1 , wherein Ar 2 is substituted with at least one substituent selected from the group consisting of silyl, aryl, alkylaryl, silylaryl, N-heteroaryl, deuterated analogs thereof, and combinations thereof.
4. The compound of claim 1 , wherein Ar 2 is a diarylamino group or deuterated analog thereof.
5. The compound of claim 1 , wherein a=a1=0.
6. An electronic device having at least one layer comprising the compound of Formula II according to claim 1 .
7. The electronic device of claim 6 , wherein the layer comprising the compound of Formula II is a photoactive layer.
8. The electronic device of claim 7 , wherein the layer further comprises an electroluminescent dopant.
9. The electronic device of claim 6 , wherein the layer comprising the compound of Formula II is an electron transport layer.
10. A compound selected from the following:
11. The compound of claim 1 , wherein the N-heterocycle of Ar 1 is selected from the group consisting of
and deuterated analogs thereof, wherein Y is an aryl group.