IP Library Granted Patent US 12698297
Granted Patent B2
US 12698297 · App. 17/997,023 · Granted Aug 4, 2026

Organic molecules for optoelectronic devices

Inventor: Sebastian Dück (Heidelberg, DE)
Assignee: Samsung Display Co., Ltd.
C07F5/027C09K11/06H10K50/11H10K85/615H10K85/636H10K85/657H10K85/658C09K2211/1018
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Quick Facts
Patent No.
US 12698297
App. No.
17/997,023
Granted
Aug 4, 2026
Kind
B2
Abstract

The invention relates to an organic molecule, in particular for the application in optoelectronic devices. According to the invention, the organic molecule has a plurality of units, wherein each unit includes or consists of a structure represented by Formula IV wherein m is an integer from 2 to 6; n=0 or 1; and X is at each occurrence independently selected from the group consisting of a direct bond, CR 3 R 4 , C═CR 3 R 4 , C═O, C═NR 3 , NR 3 , O, SiR 3 R 4 , S, S(O) and S(O) 2 .

Claims (212)

1 . An organic molecule, comprising a structure with a plurality of units, wherein each unit comprises a structure represented by Formula IV:

Formula IV, and

wherein in Formula IV,

m is an integer from 2 to 6,

n=0 or 1;

X is at each occurrence independently selected from the group consisting of a direct bond, CR 3 R 4 , C═CR 3 R 4 , C═O, C═NR 3 , NR 3 , O, SiR 3 R 4 , S, S(O) and S(O) 2 ;

R 1 , R 2 , R 3 , R 4 , R I , R II , R III , R IV and R V are each independently selected from the group consisting of:

hydrogen, deuterium, N(R 5 ) 2 , OR 5 , SR 5 , Si(R 5 ) 3 , B(OR 5 ) 2 , B(R 5 ) 2 , OSO 2 R 5 , CF 3 , CN, F, Br, I;

C 1 -C 40 -alkyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 1 -C 40 -alkoxy,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 1 -C 40 -thioalkoxy,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 2 -C 40 -alkenyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 2 -C 40 -alkynyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 6 -C 60 -aryl,

which is optionally substituted with one or more substituents R 5 ; and

C 2 -C 57 -heteroaryl,

which is optionally substituted with one or more substituents R 5 ;

R d and R e are each independently selected from the group consisting of:

hydrogen, deuterium, CF 3 , CN, F, Br, I;

C 1 -C 40 -alkyl,

which is optionally substituted with one or more substituents R a and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 6 -C 60 -aryl,

which is optionally substituted with one or more substituents R a ; and

C 2 -C 57 -heteroaryl,

which is optionally substituted with one or more substituents R a ;

R a is at each occurrence independently selected from the group consisting of: hydrogen, deuterium, N(R 5 ) 2 , OR 5 , SR 5 , Si(R 5 ) 3 , B(OR 5 ) 2 , B(R 5 ) 2 , OSO 2 R 5 , CF 3 , CN, F, Br, I;

C 1 -C 40 -alkyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 1 -C 40 -alkoxy,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 1 -C 40 -thioalkoxy,

which is optionally substituted with one or more substituents R 5 and wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 2 -C 40 -alkenyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 2 -C 40 -alkynyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 6 -C 60 -aryl,

which is optionally substituted with one or more substituents R 5 ; and

C 2 -C 57 -heteroaryl,

which is optionally substituted with one or more substituents R 5 ;

R 5 is at each occurrence independently from one another selected from the group consisting of:

hydrogen, deuterium, N(R 6 ) 2 , OR 6 , Si(R 6 ) 3 , B(OR 6 ) 2 , B(R 6 ) 2 , OSO 2 R 6 , CF 3 , CN, F, Br, I;

C 1 -C 40 -alkyl,

which is optionally substituted with one or more substituents R 6 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 6 C═CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C═O, C═S, C═Se, C═NR 6 , P(═O)(R 6 ), SO, SO 2 , NR 6 , O, S or CONR 6 ;

C 1 -C 40 -alkoxy,

which is optionally substituted with one or more substituents R 6 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 6 C═CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C═O, C═S, C═Se, C═NR 6 , P(═O)(R 6 ), SO, SO 2 , NR 6 , O, S or CONR 6 ;

C 1 -C 40 -thioalkoxy,

which is optionally substituted with one or more substituents R 6 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 6 C═CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C═O, C═S, C═Se, C═NR 6 , P(═O)(R 6 ), SO, SO 2 , NR 6 , O, S or CONR 6 ;

C 2 -C 40 -alkenyl,

which is optionally substituted with one or more substituents R 6 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 6 C═CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C═O, C═S, C═Se, C═NR 6 , P(═O)(R 6 ), SO, SO 2 , NR 6 , O, S or CONR 6 ;

C 2 -C 40 -alkynyl,

which is optionally substituted with one or more substituents R 6 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 6 C═CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C═O, C═S, C═Se, C═NR 6 , P(═O)(R 6 ), SO, SO 2 , NR 6 , O, S or CONR 6 ;

C 6 -C 60 -aryl,

which is optionally substituted with one or more substituents R 6 ; and

C 2 -C 57 -heteroaryl,

which is optionally substituted with one or more substituents R 6 ;

R 6 is at each occurrence independently from one another selected from the group consisting of:

hydrogen, deuterium, OPh, CF 3 , CN, F;

C 1 -C 5 -alkyl,

wherein one or more hydrogen atoms are optionally, independently substituted by deuterium, CN, CF 3 , or F;

C 1 -C 5 -alkoxy,

wherein one or more hydrogen atoms are optionally, independently substituted by deuterium, CN, CF 3 , or F;

C 1 -C 5 -thioalkoxy,

wherein one or more hydrogen atoms are optionally, independently substituted by deuterium, CN, CF 3 , or F;

C 2 -C 5 -alkenyl,

wherein one or more hydrogen atoms are optionally, independently substituted by deuterium, CN, CF 3 , or F;

C 2 -C 5 -alkynyl,

wherein one or more hydrogen atoms are optionally, independently substituted by deuterium, CN, CF 3 , or F;

C 6 -C 18 -aryl,

which is optionally substituted with one or more C 1 -C 5 -alkyl substituents;

C 2 -C 17 -heteroaryl,

which is optionally substituted with one or more C 1 -C 5 -alkyl substituents;

N(C 6 -C 18 -aryl) 2 ;

N(C 2 -C 17 -heteroaryl) 2 ; and

N(C 2 -C 17 -heteroaryl)(C 6 -C 18 -aryl);

wherein R a , R d , R e , and R 5 , independently from each other, optionally form a mono- or polycyclic, aliphatic, aromatic, heteroaromatic and/or benzo-fused ring system with one or more adjacent substituents selected from among R a , R d , R e , and R 5 ;

wherein R 1 , R 2 , R 3 , R 4 , R 5 , R I , R II , R III , R IV and R V , independently from each other, optionally form a mono- or polycyclic, aliphatic, aromatic, heteroaromatic and/or benzo-fused ring system with one or more adjacent substituents selected from among R 1 , R 2 , R 3 , R 4 , R 5 , R I , R II , R III , R IV and R V , and

wherein the plurality of units of the organic molecule optionally link to one another via a linking group selected from the group consisting of a single bond, an alkylene group having 1 to 3 carbon atoms, a phenylene group, a naphthylene group, an anthracene group, a pyrene group, a pyridine group, a pyrimidine group and a triazine group;

wherein ring a, ring b, and/or ring c of at least one unit of the organic molecule is optionally shared by an adjacent unit of the organic molecule;

wherein, when ring b and ring c of one unit are shared by ring b and ring c of an adjacent unit, the direct bond between ring b and ring c in the one unit is also shared by the adjacent unit;

wherein ring a, ring b, and/or ring c of one unit is optionally fused with ring a, ring b, or ring c of an adjacent unit;

wherein any part of one unit is optionally bonded to any part of an adjacent unit such that a part of the one unit is shared with the structure of the adjacent unit; and

wherein any substituent R a , R d , R e , R IV , R V , R 2 , R 1 , R I , R II , R III , R 3 or R 4 of one unit is optionally bonded to any substituent R a , R d , R e , R IV , R V , R 2 , R 1 , R I , R II , R III , R 3 or R 4 of an adjacent unit to form a direct bond or an aryl or heteroaryl ring by fusion, which is optionally substituted with one or more C 1 -C 5 -alkyl substituents, Ph, deuterium, halogen, CN or CF 3 .

2 . The organic molecule according to claim 1 , wherein m is 2 or 3.

3 . The organic molecule according to claim 1 , comprising a structure represented by one of the following Formulae:

and

wherein X, R 1 , R 2 , R I , R II , R III , R IV and R V , R a , R d , R e , and n are the same as respectively defined in connection with Formula IV.

4 . The organic molecule according to claim 1 , comprising a structure represented by Formula IVa-0, and/or Formula IVb-0:

wherein X, R 1 , R 2 , R I , R III , R IV , R V , R a , R d , and R e are the same as respectively defined in connection with Formula IV.

5 . The organic molecule according to claim 1 , comprising a structure represented by Formula IVb-0b:

wherein X, R 1 , R 2 , R III , R IV , R V , and R a are the same as respectively defined in connection with Formula IV.

6 . The organic molecule according to claim 1 , wherein X is NR 3 .

7 . The organic molecule according to claim 1 , wherein R 1 , R 2 , R 3 , R 4 , R I , R II , R III , R IV , and R V are each independently selected from the group consisting of:

hydrogen;

deuterium;

N(R 5 ) 2 ;

OR 5 ;

Si(R 5 ) 3 ;

B(R 5 ) 2 ;

CF 3 ;

CN;

halogen;

C 1 -C 18 -alkyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 6 -C 18 -aryl,

which is optionally substituted with one or more substituents R 5 ; and

C 2 -C 17 -heteroaryl,

which is optionally substituted with one or more substituents R 5 ; and

R 5 is at each occurrence independently from one another selected from the group consisting of: hydrogen, deuterium, N(R 6 ) 2 , OR 6 , Si(R 6 ) 3 , B(R 6 ) 2 , CF 3 , CN, F, Br, I;

C 1 -C 18 -alkyl,

which is optionally substituted with one or more substituents R 6 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 6 C═CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C═O, C═S, C═Se, C═NR 6 , P(═O)(R 6 ), SO, SO 2 , NR 6 , O, S or CONR 6 ;

C 6 -C 18 -aryl,

which is optionally substituted with one or more substituents R 6 ; and

C 2 -C 17 -heteroaryl,

which is optionally substituted with one or more substituents R 6 ,

wherein R 1 , R 2 , R 3 , R I , R II , R III , R IV , R 5 , and R V , independently from each other, are optionally bonded to an adjacent group selected from among R 1 , R 2 , R 3 , R I , R II , R III , R IV , R 5 , and R V to form an aryl or heteroaryl ring, which is optionally substituted with one or more C 1 -C 5 -alkyl substituents, deuterium, halogen, CN or CF 3 .

8 . The organic molecule according to claim 1 , wherein R a is at each occurrence independently selected from the group consisting of:

hydrogen;

deuterium;

N(R 5 ) 2 ;

OR 5 ;

SR 5 ;

Si(R 5 ) 3 ;

B(OR 5 ) 2 ;

B(R 5 ) 2 ;

OSO 2 R 5 ;

CF 3 ;

CN;

halogen;

C 1 -C 18 -alkyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 1 -C 18 -alkoxy,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 1 -C 18 -thioalkoxy,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 2 -C 18 -alkenyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 2 -C 18 -alkynyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 6 -C 18 -aryl,

which is optionally substituted with one or more substituents R 5 ; and

C 2 -C 17 -heteroaryl,

which is optionally substituted with one or more substituents R 5 .

9 . The organic molecule according to claim 1 , wherein R V is at each occurrence independently selected from the group consisting of:

N(R 5 ) 2 ;

OR 5 ;

C 1 -C 18 -alkyl,

which is optionally substituted with one or more substituents R 5 and

wherein one or more non-adjacent CH 2 -groups are optionally substituted by R 5 C═CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C═O, C═S, C═Se, C═NR 5 , P(═O)(R 5 ), SO, SO 2 , NR 5 , O, S or CONR 5 ;

C 6 -C 18 -aryl,

which is optionally substituted with one or more substituents R 5 ; and

C 2 -C 17 -heteroaryl,

wherein R V , at each occurrence independently from each other, optionally forms a mono- or polycyclic, aliphatic, aromatic, heteroaromatic and/or benzo-fused ring system with one or more adjacent substituents selected from among R 2 and R IV , which is optionally substituted with one or more C 1 -C 6 -alkyl substituents, deuterium, halogen, CN or CF 3 .

10 . An optoelectronic device comprising the organic molecule according to claim 1 as a luminescent emitter.

11 . The optoelectronic device according to claim 10 , wherein the device is selected from the group consisting of:

organic light-emitting diodes (OLEDs),

light-emitting electrochemical cells,

OLED-sensors,

organic diodes,

organic solar cells,

organic transistors,

organic field-effect transistors,

organic lasers, and

down-conversion elements.

12 . A composition, comprising:

(a) an organic molecule according to claim 1 , as an emitter and/or a host, and

(b) an emitter and/or a host material, which differs from the organic molecule, and

(c) optionally, a dye and/or a solvent.

13 . An optoelectronic device comprising the organic molecule according to claim 1 ,

wherein the device is selected from the group consisting of organic light-emitting diode (OLED), light-emitting electrochemical cell, OLED-sensor, organic diode, organic solar cell, organic transistor, organic field-effect transistor, organic laser, and down-conversion element.

14 . The optoelectronic device according to claim 13 , comprising:

a substrate,

an anode, and

a cathode, wherein the anode or the cathode is on the substrate, and

a light-emitting layer between the anode and the cathode, and comprising the organic molecule.

15 . A method for producing an optoelectronic device, the method comprising depositing the organic molecule according to claim 1 by a vacuum evaporation method or from a solution.

16 . The organic molecule according to claim 1 , wherein m is 2.

17 . An optoelectronic device, comprising the composition according to claim 12 ,

wherein the device is selected from the group consisting of organic light-emitting diode (OLED), light-emitting electrochemical cell, OLED-sensor, organic diode, organic solar cell, organic transistor, organic field-effect transistor, organic laser, and down-conversion element.

18 . The optoelectronic device according to claim 17 , comprising:

a substrate,

an anode, and

a cathode, wherein the anode or the cathode is disposed on the substrate, and

a light-emitting layer between the anode and the cathode, and comprising the composition.

19 . A method for producing an optoelectronic device, the method comprising depositing the composition according to claim 12 by a vacuum evaporation method or from a solution.