US 11,944,000 B2
Organic electroluminescent materials and devices
Bin Ma, Plainsboro, NJ (US); Chuanjun Xia, Lawrenceville, NJ (US); and Chun Lin, Yardley, PA (US)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by Universal Display Corporation, Ewing, NJ (US)
Filed on Jan. 5, 2023, as Appl. No. 18/150,554.
Application 18/150,554 is a continuation of application No. 14/482,118, filed on Sep. 10, 2014, abandoned.
Claims priority of provisional application 61/896,958, filed on Oct. 29, 2013.
Prior Publication US 2023/0157153 A1, May 18, 2023
Int. Cl. H10K 85/30 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC H10K 85/346 (2023.02) [H10K 85/342 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A first device comprising a first organic light emitting device, the first organic light emitting device comprising:
an anode;
a cathode; and
an organic layer, disposed between the anode and the cathode, comprising a host and an emissive dopant, wherein the emissive dopant is a compound having a structure according to

OG Complex Work Unit Chemistry
wherein R1 and R2 each independently represent mono, di, tri, or tetra substitutions, or no substitution;
wherein R3 represents mono, di, tri, or tetra substitutions;
wherein each R1 is selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof;
wherein each R2 and R3 is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
wherein at least one R3 is partially or fully deuterated alkyl; and
wherein the compound is heteroleptic.