Patent ID: 11957049
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C  Y | IPC C  H

Claim 17:
18. An emission layer comprising:
at least one organic luminescent emitter molecule emitting light, wherein the at least one organic luminescent emitter is a primary light emitting molecule of the emission layer, each organic luminescent emitter molecule comprising:
a first chemical moiety comprising or consisting of a structure of formula I,, and
two second chemical moieties, each independently comprising or consisting of a structure of formula II,, wherein the first chemical moiety is linked to each of the two second chemical moieties via a single bond;
wherein:
T is the binding site of a single bond linking the first chemical moiety to one of the two second chemical moieties or is hydrogen;
V is the binding site of a single bond linking the first chemical moiety to one of the two second chemical moieties or is hydrogen;
W is selected from the group consisting of CN and CF3;
X is the binding site of a single bond linking the first chemical moiety to one of the two second chemical moieties or hydrogen;
Y is the binding site of a single bond linking the first chemical moiety to one of the two second chemical moieties or hydrogen;
#represents the binding site of a single bond linking the first chemical moiety to one of the two second chemical moieties;
Z is at each occurrence independently selected from the group consisting of a direct bond, CR3R4, C═CR3R4, C═O, C═NR3, NR3, O, SiR3R4, S, S(O), and S(O)2;
R1, R2, and Rm are at each occurrence independently selected from the group consisting of:
hydrogen, deuterium,
C1-C5-alkyl,
wherein one or more hydrogen atoms are optionally substituted by deuterium;

C2-C8-alkenyl,
wherein one or more hydrogen atoms are optionally substituted by deuterium;

C2-C8-alkynyl,
wherein one or more hydrogen atoms are optionally substituted by deuterium; and

C6-C18-aryl,
which is optionally substituted with one or more substituents R6 and

Ra, R3, and R4 are at each occurrence independently selected from the group consisting of hydrogen, deuterium, N(R5)2, OR5, Si(R5)3, B(OR)2, OSO2R5, CF3, CN, F, Br, I,
C1-C40-alkyl,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C1-C40-alkoxy,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C1-C40-thioalkoxy,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C2-C40-alkenyl,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C2-C40-alkynyl,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C6-C60-aryl,
which is optionally substituted with one or more substituents R5; and

C3-C57-heteroaryl,
which is optionally substituted with one or more substituents R5;

R5 is at each occurrence independently selected from the group consisting of hydrogen, deuterium, N(R6)2, OR6, Si(R6)3, B(OR6)2, OSO2R6, CF3, CN, F, Br, I,
C1-C40-alkyl,
which is optionally substituted with one or more substituents R6 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R6C═CR6, C═C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6;

C1-C40-alkoxy,
which is optionally substituted with one or more substituents R6 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R6C═CR6, C═C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6;

C1-C40-thioalkoxy,
which is optionally substituted with one or more substituents R6 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R6C═CR6, C═C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6;

C2-C40-alkenyl,
which is optionally substituted with one or more substituents R6 and wherein one or more non-adjacent CH2-groups are optionally substituted by R6C═CR6, C═C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6;

C2-C40-alkynyl,
which is optionally substituted with one or more substituents R6 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R6C═CR6, C═C, Si(R6)2, Ge(R6)2, Sn(R6)2, C═O, C═S, C═Se, C═NR6, P(═O)(R6), SO, SO2, NR6, O, S or CONR6;

C6-C60-aryl,
which is optionally substituted with one or more substituents R6 and

C3-C57-heteroaryl,
which is optionally substituted with one or more substituents R6;

R6 is at each occurrence independently selected from the group consisting of hydrogen, deuterium, OPh, CF3, CN, F,
C1-C5-alkyl,
wherein one or more hydrogen atoms are optionally, independently from each other substituted by deuterium, CN, CF3, or F;

C1-C5-alkoxy,
wherein one or more hydrogen atoms are optionally, independently from each other substituted by deuterium, CN, CF3, or F;

C1-C5-thioalkoxy,
wherein one or more hydrogen atoms are optionally, independently from each other substituted by deuterium, CN, CF3, or F;

C2-C5-alkenyl, wherein one or more hydrogen atoms are optionally, independently from each other substituted by deuterium, CN, CF3, or F;
C2-C5-alkynyl,
wherein one or more hydrogen atoms are optionally, independently from each other substituted by deuterium, CN, CF3, or F;

C6-C18-aryl,
which is optionally substituted with one or more C1-C5-alkyl substituents;

C3-C17-heteroaryl,
which is optionally substituted with one or more C1-C5-alkyl substituents;

N(C6-C18-aryl)2;
N(C3-C17-heteroaryl)2,
and N(C3-C17-heteroaryl)(C6-C18-aryl);
wherein the substituents Ra, R3, R4 or R5 independently from each other optionally form a mono- or polycyclic, aliphatic, aromatic and/or benzo-fused ring system with one or more substituents Ra, R3, R4 or R5;
wherein exactly two substituents selected from the group consisting of T, V, X and Y represent the binding sites of a single bond linking the first chemical moiety and one of the two second chemical moieties,
wherein each organic luminescent emitter molecule has:
an emission maxima from about 450 to about 470 nm; and
a photoluminescence quantum yield of at least about 70%, and

wherein when Z is a direct bond in each of the two second chemical moieties,
i) two adjacent Ra of one of the two second chemical moieties form a mono- or polycyclic, aliphatic, aromatic and/or benzo-fused ring system, or
ii) at least one Ra of one of the two second chemical moieties is selected from the group consisting of:

N(R5)2 OR5, Si(R5)3, B(OR5)2, OSO2R5, CF3, CN,
C1-C40-thioalkoxy,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C2-C40-alkenyl,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C2-C40-alkynyl,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR, P(═O)(R5), SO, SO2, NR5, O, S or CONR;

C6-C60-aryl,
which is substituted with one or more substituents R5 excluding hydrogen; and

C3-C57-heteroaryl,
which is substituted with one or more substituents R5 excluding hydrogen.