IP Library › Granted Patent US 12692279

Granted Patent B2

US 12692279 · App. 17/629,701 · Granted Jul 28, 2026

Organic molecules for optoelectronic devices

Inventors: Diego Rota Matir (Heidelberg, DE); Barbara Szafranowska (Bruchsal, DE); Sabine Weidlich (Frankfurt, DE); Daniel Zink (Graben-Neudorf, DE); Dominik Ijem Ananaba (Kraichtal, DE); Stefan Seifermann (Bühl, DE)

Assignee: Samsung Display Co., Ltd.

C07F5/027 C09K11/06 H10K85/658 C09K2211/1018 H10K50/11 H10K2101/10 H10K2101/30 H10K2102/351

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Quick Facts

Patent No.: US 12692279
App. No.: 17/629,701
Granted: Jul 28, 2026
Kind: B2

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Abstract

An organic molecule for the application in optoelectronic devices is disclosed having a structure of Formula I: wherein R I , R II , R III and R IV are independently from another selected from the group consisting of: hydrogen, deuterium, N(R 5 ) 2 , OR 5 , SR 5 , Si(R 5 ) 3 , B(OR 5 ) 2 , OSO 2 R 5 , CF 3 , CN, halogen, C 1 -C 40 -alkyl, C 1 -C 40 -alkoxy, C 1 -C 40 -thioalkoxy, C 2 -C 40 -alkenyl, C 2 -C 40 -alkynyl, C 6 -C 60 -aryl, and C 3 -C 57 -heteroaryl, and R V is selected from the group of C 1 -C 5 alkyl, C 6 -C 18 aryl, and C 3 -C 15 heteroaryl.

Claims (271)

1 . An organic molecule, comprising a structure of Formula I:

wherein

each of R I , R II , R III and R IV is 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 ,

OSO 2 R 5 ,

CF 3 ,

CN,

halogen,

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,

C 2 -C 40 -alkenyl,

C 2 -C 40 -alkynyl,

C 6 -C 60 -aryl,

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

C 3 -C 57 -heteroaryl,

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

R 5 is at each occurrence independently selected from the group consisting of: hydrogen, deuterium, OPh, SPh, CF 3 , CN, F, Si(C 1 -C 5 -alkyl) 3 , Si(Ph) 3 ,

C 1 -C 5 -alkyl,

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

C 1 -C 5 -alkoxy,

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

C 1 -C 5 -thioalkoxy,

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

C 2 -C 5 -alkenyl,

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

C 2 -C 5 -alkynyl,

wherein optionally one or more hydrogen atoms are independently from each other 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 3 -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 3 -C 17 -heteroaryl) 2 ; and

N(C 3 -C 17 -heteroaryl)(C 6 -C 18 -aryl);

R V comprises or consists of a structure of Formula II:

wherein

Z is at each occurrence independently selected from the group consisting of a direct bond,

NRI, Si(R 5 ) 2 , C(R 5 ) 2 , BR 5 , O, S, S(O) and S(O) 2 ;

m is 0 or 1;

G is C if m=1; G is CR* if m=0;

J is C if m=1; J is CR* if m=0;

R* is at each occurrence independently from another selected from the binding site or R a ;

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

hydrogen, C 1 -C 5 -alkyl, C 6 -C 18 aryl or C 3 -C 17 -heteroaryl;

wherein exactly one R* of Formula II represents the binding site of R V , and when Z is a direct bond, m is 1, G is C, and J is C, then (i) N—R* is not the binding site of R V , or (ii) at least one of R I to R IV and R VI to R VIII is not hydrogen, and

wherein when Z is a direct bond, m is 1, G is C, J is C, and N—R* is not the bindinq site of R V , then at least one of R I to R IV and R VI to R VIII is selected from the group consisting of:

N(R 5 ) 2 ,

OR 5 ,

SR 5 ,

Si(R 5 ) 3 ,

B(OR 5 ) 2 ,

OSO 2 R 5 ,

CF 3 ,

CN,

haloqen,

C 1 -C 40 -alkyl,

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

C 1 -C 40 -alkoxy,

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

C 1 -C 40 -thioalkoxy,

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

C 2 -C 40 -alkenyl,

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

C 2 -C 40 -alkynyl,

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

C 6 -C 60 -aryl,

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

R VI , R VII and R VIII are at each occurrence independently selected from the group consisting of:

hydrogen, deuterium,

C 1 -C 5 -alkyl,

wherein one or more hydrogen atoms are optionally substituted by deuterium;

C 6 -C 18 -aryl,

wherein optionally one or more hydrogen atoms are independently from each other substituted by C 1 -C 5 -alkyl, C 6 -C 18 aryl or C 3 -C 17 -heteroaryl;

C 3 -C 18 -heteroaryl,

wherein optionally one or more hydrogen atoms are independently from each other substituted by C 1 -C 5 -alkyl, C 6 -C 18 aryl or C 3 -C 17 -heteroaryl.

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

hydrogen, deuterium, halogen, Me, i Pr, t Bu, CN, CF 3 , SiMe 3 , SiPh 3 ,

Ph, which is optionally substituted with one or more substituents independently from each other selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 , and Ph,

pyridinyl, which is optionally substituted with one or more substituents independently from each other selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 , and Ph,

pyrimidinyl, which is optionally substituted with one or more substituents independently from each other selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 , and Ph,

carbazolyl, which is optionally substituted with one or more substituents independently from each other selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 , and Ph,

triazinyl, which is optionally substituted with one or more substituents independently from each other selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 , and Ph,

and N(Ph) 2 .

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

hydrogen, deuterium, Me, i Pr, t Bu, SiMe 3 , SiPh 3 ,

Ph, which is optionally substituted with one or more substituents independently from each other selected from the group consisting of Me, i Pr, t Bu, and Ph,

and N(Ph) 2 .

4 . The organic molecule according to claim 1 , wherein the organic molecule comprises a structure of Formula Ia:

5 . The organic molecule according to claim 1 , wherein R V is selected from the group consisting of structures of Formula II-a, Formula II-b and Formula II-c:

wherein

* represents the binding site;

G a is C if m=1; G a is CR a if m=0; and

J a is C if m=1; J a is CR a if m=0.

6 . An organic molecule, comprising a structure of Formula I:

wherein

each of R I , R II , R III and R IV is 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 ,

OSO 2 R 5 ,

CF 3 ,

ON,

haloqen,

C 1 -C 40 -alkyl,

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

C 1 -C 40 -alkoxy,

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

C 1 -C 40 -thioalkoxy,

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

C 2 -C 40 -alkenyl,

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

C 2 -C 40 -alkynyl,

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

C 6 -C 60 -aryl,

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

C 3 -C 57 -heteroaryl,

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

R 5 is at each occurrence independently selected from the group consisting of: hydrogen, deuterium, OPh, SPh, CF 3 , CN, F, Si(C 1 -C 5 -alkyl) 3 , Si(Ph) 3 ,

C 1 -C 5 -alkyl,

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

C 1 -C 5 -alkoxy,

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

C 1 -C 5 -thioalkoxy,

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

C 2 -C 5 -alkenyl,

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

C 2 -C 5 -alkynyl,

wherein optionally one or more hydrogen atoms are independently from each other 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 3 -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 3 -C 17 -heteroaryl) 2 ; and

N(C 3 -C 17 -heteroaryl)(C 6 -C 18 -aryl);

wherein R V comprises a structure of Formula II-a-IX:

wherein

m is 1;

G is C;

J is C;

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

hydrogen, C 1 -C 5 -alkyl, C 6 -C 18 aryl or C 3 -C 17 -heteroaryl;

* represents the bindinq site of R V .

7 . The organic molecule according to claim 1 , wherein R VI , R VII and R VIII are at each occurrence independently from each other selected from the group consisting of hydrogen,

C 1 -C 5 -alkyl,

C 6 -C 18 -aryl,

wherein optionally one or more hydrogen atoms are independently from each other substituted by C 1 -C 5 -alkyl or C 6 -C 18 -aryl.

8 . The organic molecule according to claim 1 , comprising a structure of Formula 1-0:

9 . An organic molecule, comprising a structure of Formula Ic:

wherein

each of R II and R III is 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 ,

OSO 2 R 5 ,

CF 3 ,

ON,

halogen,

C 1 -C 40 -alkyl,

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

C 1 -C 40 -alkoxy,

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

C 1 -C 40 -thioalkoxy,

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

C 2 -C 40 -alkenyl,

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

C 2 -C 40 -alkynyl,

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

C 6 -C 60 -aryl,

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

C 3 -C 57 -heteroaryl,

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

R 5 is at each occurrence independently selected from the group consisting of: hydrogen, deuterium, OPh, SPh, CF 3 , CN, F, Si(C 1 -C 5 -alkyl) 3 , Si(Ph) 3 ,

C 1 -C 5 -alkyl,

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

C 1 -C 5 -alkoxy,

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

C 1 -C 5 -thioalkoxy,

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

C 2 -C 5 -alkenyl,

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

C 2 -C 5 -alkynyl,

wherein optionally one or more hydrogen atoms are independently from each other 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 3 -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 3 -C 17 -heteroaryl) 2 ; and

N(C 3 -C 17 -heteroaryl)(C 6 -C 18 -aryl);

R V comprises or consists of a structure of Formula II:

wherein

Z is at each occurrence independently selected from the group consisting of a direct bond,

NR 5 , Si(R 5 ) 2 , C(R 5 ) 2 , BRI, O, S, S(O) and S(O) 2 ;

m is 0 or 1;

G is C if m=1; G is CR* if m=0;

J is C if m=1; J is CR* if m=0;

R* is at each occurrence independently from another selected from the bindinq site or R a ;

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

hydrogen, C 1 -C 5 -alkyl, C 6 -C 18 aryl or C 3 -C 17 -heteroaryl;

wherein exactly one R* of Formula II represents the bindinq site of R V , and when Z is a direct bond, m is 1, G is C, and J is C, then (i) N—R* is not the bindinq site of R V , or (ii) at least one of R I to R IV and R VI to R VIII is not hydrogen;

R VI is at each occurrence independently selected from the group consisting of:

hydrogen, deuterium,

C 1 -C 5 -alkyl,

wherein one or more hydrogen atoms are optionally substituted by deuterium;

C 6 -C 18 -aryl,

wherein optionally one or more hydrogen atoms are independently from each other substituted by C 1 -C 5 -alkyl, C 6 -C 18 aryl or C 3 -C 17 -heteroaryl;

C 3 -C 15 -heteroaryl,

wherein optionally one or more hydrogen atoms are independently from each other substituted by C 1 -C 5 -alkyl, C 6 -C 18 aryl or C 3 -C 17 -heteroaryl.

10 . A composition, comprising:

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

(b) an emitter and/or a host material different from the organic molecule according to claim 1 ; and

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

12 . The optoelectronic device according to claim 11 , wherein the optoelectronic device is an organic light-emitting diode, a light-emitting electrochemical cell, an organic light-emitting sensor, an organic diode, an organic solar cell, an organic transistor, an organic field-effect transistor, an organic laser or a down-conversion element.

13 . The optoelectronic device according to claim 12 , comprising:

a substrate;

an anode;

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

at least one light-emitting layer disposed between the anode and the cathode and which comprises the organic molecule.

14 . An optoelectronic device comprising the organic molecule according to claim 1 , wherein the organic molecule is one of a luminescent emitter, an electron transport material, a hole injection material or a hole blocking material in the optoelectronic device.

15 . An optoelectronic device comprising the organic molecule according to claim 2 , wherein the optoelectronic device is an organic light-emitting diode, a light-emitting electrochemical cell, an organic light-emitting sensor, an organic diode, an organic solar cell, an organic transistor, an organic field-effect transistor, an organic laser or a down-conversion element.

16 . The optoelectronic device according to claim 15 , comprising:

a substrate;

an anode;

a cathode, wherein the anode or the cathode is applied to the substrate; and

at least one light-emitting layer disposed between the anode and the cathode and which comprises the organic molecule.

17 . An optoelectronic device comprising the composition according to claim 10 .

18 . The optoelectronic device according to claim 17 , wherein the optoelectronic device is an organic light-emitting diode, a light-emitting electrochemical cell, an organic light-emitting sensor, an organic diode, an organic solar cell, an organic transistor, an organic field-effect transistor, an organic laser or a down-conversion element.

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

a substrate;

an anode;

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

at least one light-emitting layer disposed between the anode and the cathode and which comprises the composition.

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