Organic molecules for optoelectronic devices
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 .
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.