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US 2022/0102641 A1Published application
Functional materials for oled applications
AssigneeArizona Board of Regents on behalf of Arizona State University
InventorJian LI
Life of this patent
Estimating the term…
Abstract
Compounds of General Formula I may act electron transporting materials, hole blocking materials, and host materials. Devices incorporating compounds of General Formula I may have exhibit device performance characteristics.
Claims20
A compound of General Formula I:
- wherein
- ring A is a fused polycyclic aryl or heteroaryl rings having at least 14 atoms selected from the group consisting of C and N;
- Y1a, Y1b, Y1c, Y1d, Y1e, Y2a, Y2b, Y2c, Y2d, Y2e, Y3a, Y3b, Y3c, Y3d, and Y3e each independently represents C or N;
- Y1a and Y2a are optionally linked via linking atom Z, wherein Z represents O, S, Se, NR4, P═O, As═O, BR4, AlR4, Bi═O, CR4R5, C═O, SiR4R5, GeR4R5, PR4, PR4R5, R4P═O, AsR4, R4As═O, S═O, SO2, Se═O, SeO2, BR4R5, AlR4, AlR4R5, R4Bi═O, or BiR4;
- L is a divalent linking group selected from the group consisting of a covalent bond, O, S, Se, alkylene, monoalkylamine, monoarylamine, monoheteroarylamine, arylene, heteroarylene, and combinations thereof;
- wherein L forms a bond with ring A and with one of Y1a, Y1b, Y1c, Y1d, or Y1e;
- or L is a trivalent linking atom selected from the group consisting of B, N, P, CR4, SiR4, Al, GeR4, PR4, P═O, As, As═O, BR4, AlR4, Bi, and Bi═O, wherein L forms one bond with ring A, one bond with Y1a, and one bond with Y2a;
- R1, R2, R3, and R4 each independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino;
- substituted or unsubstituted:
- aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, polymeric;
- or any conjugate or combination thereof;
- any two adjacent R1, R2, R3, and R4 may together form a fused ring;
- and
- each n is independently an integer, valency permitting.
11 more elements
A compound represented by one of the following structures:
An organic electroluminescent device comprising:
- an anode;
- a cathode;
- and
- at least one organic layer, disposed between the anode and the cathode, comprising at least one compound of General Formula I:
- wherein
- ring A is a fused polycyclic aryl or heteroaryl rings having at least 14 atoms selected from the group consisting of C and N;
- Y1a, Y1b, Y1c, Y1d, Y1e, Y2a, Y2b, Y2c, Y2d, Y2e, Y3a, Y3b, Y3c, Y3d, and Y3e each independently represents C or N;
- Y1a and Y2a are optionally linked via linking atom Z, wherein Z represents O, S, Se, NR4, P═O, As═O, BR4, AlR4, Bi═O, CR4R5, C═O, SiR4R5, GeR4R5, PR4, PR4R5, R4P═O, AsR4, R4As═O, S═O, SO2, Se═O, SeO2, BR4R5, AlR4, AlR4R5, R4Bi═O, or BiR4;
- L is a divalent linking group selected from the group consisting of a covalent bond, O, S, Se, alkylene, monoalkylamine, monoarylamine, monoheteroarylamine, arylene, heteroarylene, and combinations thereof;
- wherein L forms a bond with ring A and with one of Y1a, Y1b, Y1c, Y1d, or Y1e;
- or L is a trivalent linking atom selected from the group consisting of B, N, P, CR4, SiR4, Al, GeR4, PR4, P═O, As, As═O, BR4, AlR4, Bi, and Bi═O, wherein L forms one bond with ring A, one bond with Y1a, and one bond with Y2a;
- R1, R2, R3, and R4 each independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino;
- substituted or unsubstituted:
- aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, polymeric;
- or any conjugate or combination thereof;
- any two adjacent R1, R2, R3, and R4 may together form a fused ring;
- and
- each n is independently an integer, valency permitting.
15 more elements
Dependencies are inferred from the claim text.