US 12,302,750 B2
Organic electroluminescent materials and devices
Chuanjun Xia, Ewing, NJ (US); and Chun Lin, Ewing, NJ (US)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by Universal Display Corporation, Ewing, NJ (US)
Filed on Nov. 1, 2023, as Appl. No. 18/499,614.
Application 18/499,614 is a continuation of application No. 16/828,093, filed on Mar. 24, 2020, abandoned.
Application 16/828,093 is a continuation of application No. 15/420,895, filed on Jan. 31, 2017, granted, now 10,600,967.
Claims priority of provisional application 62/296,737, filed on Feb. 18, 2016.
Prior Publication US 2024/0147842 A1, May 2, 2024
Int. Cl. H01L 51/54 (2006.01); C07C 13/62 (2006.01); C07C 13/66 (2006.01); C07C 211/58 (2006.01); C07C 211/61 (2006.01); C07C 255/58 (2006.01); C07D 307/91 (2006.01); C07D 333/50 (2006.01); C07D 333/76 (2006.01); C07D 491/048 (2006.01); C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01); H10K 101/10 (2023.01)
CPC H10K 85/624 (2023.02) [C07C 13/62 (2013.01); C07C 13/66 (2013.01); C07C 211/58 (2013.01); C07C 211/61 (2013.01); C07C 255/58 (2013.01); C07D 307/91 (2013.01); C07D 333/50 (2013.01); C07D 333/76 (2013.01); C07D 491/048 (2013.01); C09K 11/06 (2013.01); H10K 85/621 (2023.02); H10K 85/622 (2023.02); H10K 85/623 (2023.02); H10K 85/633 (2023.02); C07C 2603/18 (2017.05); C07C 2603/26 (2017.05); C07C 2603/40 (2017.05); C07C 2603/48 (2017.05); C07C 2603/50 (2017.05); C07C 2603/54 (2017.05); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1033 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); H10K 50/11 (2023.02); H10K 85/342 (2023.02); H10K 85/626 (2023.02); H10K 85/636 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
 
1. An organic light-emitting device (OLED) comprising:
an anode;
a cathode; and
an organic layer, disposed between the anode and the cathode, comprising a first compound;
wherein the first compound is a fluorescent emitter in the OLED at room temperature;
wherein the first compound has at least one aromatic ring and at least one substituent R;
wherein each of the at least one R is independently selected from the group consisting of partially deuterated alkyl, partially deuterated cycloalkyl, fully deuterated alkyl, fully deuterated cycloalkyl and combinations thereof;
wherein each of the at least one R is directly bonded to one of the aromatic rings;
wherein in each of the at least one R, C having a deuterium attached thereto is attached to the aromatic ring;
wherein the first compound is an emissive dopant that produces emissions via thermally activated delayed fluorescence (TADF) process.