Organic molecules for use in organic devices
An organic molecules for use in optoelectronic devices is disclosed having a structure of formula A1: where A, R N , R a and R 2 are as defined herein.
1. An organic molecule comprising a structure of Formula A1:
where
A at each instance is independently CR b or N;
R N is methyl, phenyl, xylyl, mesityl, naphthyl, biphenyl, naphthylphenyl, terphenyl or 2,4,6-triphenylphenyl;
R a at each instance is independently H, deuterium, an alkyl group or an aryl group;
R b at each instance is independently selected from the group consisting of:
H,
deuterium,
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group which is unsubstituted or substituted by one or more R 2 ,
an aryl group which is unsubstituted or substituted by one or more R 2 and is optionally additionally substituted by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups and
a group of the sub-formula T1 or a group of the sub-formula T2:
where:
R N2 is an alkyl group, an aryl group which is unsubstituted or substituted by one or more R N3 or a heteroaryl group which is unsubstituted or substituted by one or more R N3 ;
R N3 is an alkyl group, an aryl group or a heteroaryl group;
R 1 at each instance is an aryl group which is unsubstituted or substituted by one or more R 2 ;
R 2 at each instance is independently F, CF 3 or CN;
where one to four A are N or at least one R b is selected from the group consisting of:
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group substituted by one or more R 2 ,
an aryl group substituted by one or more R 2 , and optionally additionally substituted by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups and
a group of the sub-formula T1 or a group of the sub-formula T2:
and where # indicates the point via which the group of the sub-formula T1 or T2 is attached via a single bond.
2. The organic molecule according to claim 1 , comprising a structure of Formula A2:
where
R c at each instance is independently selected from the group consisting of:
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group substituted by one or more R 2 ,
an aryl group substituted by one or more R 2 , and optionally additionally substituted by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups and
a group of the sub-formula T1 or a group of the sub-formula T2:
where R N2 is an alkyl group, an aryl group which is unsubstituted or substituted by one or more R N3 or a heteroaryl group which is unsubstituted or substituted by one or more R N3 ;
R d at each instance is independently selected from the group consisting of:
H,
deuterium,
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group which is unsubstituted or substituted by one or more R 2 ,
an aryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups, and
a group of the sub-formula T1 or a group of the sub-formula T2:
where R N2 is an alkyl group, an aryl group which is unsubstituted or substituted by one or more R N3 or a heteroaryl group which is unsubstituted or substituted by one or more R N3 ;
and #, R a , R 1 , R 2 and R N3 have the aforestated meanings.
3. The organic molecule according to claim 1 , comprising a structure of Formula A3:
where
R c at each instance is independently selected from the group consisting of:
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group substituted by one or more R 2 ,
an aryl group substituted by one or more R 2 , and optionally additionally substituted by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups and
a group of the sub-formula T1 or a group of the sub-formula T2:
where R N2 is an alkyl group, an aryl group which is unsubstituted or substituted by one or more R N3 or a heteroaryl group which is unsubstituted or substituted by one or more R N3 ;
R d is the same or different at each instance and is independently selected from the group consisting of:
H,
deuterium,
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group which is unsubstituted or substituted by one or more R 2 ,
an aryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups and
a group of the sub-formula T1 or a group of the sub-formula T2:
where R N2 is an alkyl group, an aryl group which is unsubstituted or substituted by one or more R N3 or a heteroaryl group which is unsubstituted or substituted by one or more R N3 ;
and #, R a , R 1 , R 2 and R N3 have the aforestated meanings.
4. The organic molecule according to claim 1 , comprising a structure of Formula A4:
where
R c at each instance is independently selected from the group consisting of:
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group substituted by one or more R 2 ,
an aryl group substituted by one or more R 2 , and optionally additionally substituted by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups and
a group of the sub-formula T1 or a group of the sub-formula T2:
where R N2 is an alkyl group, an aryl group which is unsubstituted or substituted by one or more R N3 or a heteroaryl group which is unsubstituted or substituted by one or more R N3 ;
R d is the same or different at each instance and is independently selected from the group consisting of:
H,
deuterium,
CF 3 ,
C(═O)R 1 ,
CN,
an alkyl group which is unsubstituted or substituted by one or more R 2 ,
an aryl group which is unsubstituted or substituted by one or more R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups,
a heteroaryl group which is unsubstituted or substituted by R 2 and/or by one or more unsubstituted alkyl groups and/or by one or more unsubstituted or alkyl-substituted aryl groups and
a group of the sub-formula T1 or a group of the sub-formula T2:
where R N2 is an alkyl group, an aryl group which is unsubstituted or substituted by one or more R N3 or a heteroaryl group which is unsubstituted or substituted by one or more R N3 ;
and #, R a , R 1 , R 2 and R N3 have the aforestated meanings.
5. The organic molecule according to claim 1 , where the organic molecule has at least one CN group.
6. The organic molecule according to claim 2 , where the organic molecule has at least one CN group.
7. The organic molecule according to claim 3 , where the organic molecule has at least one CN group.
8. The organic molecule according to claim 4 , where the organic molecule has at least one CN group.
9. A composition comprising:
(a) at least one organic molecule according to claim 1 as an emitter and/or host;
(b) one or more emitter and/or host materials different from the at least one organic molecule according to claim 1 ; and
(c) optionally one or more dyes and/or one or more solvents.
10. An optoelectronic device comprising the organic molecule according to claim 1 .
11. The optoelectronic device according to claim 10 , 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.
12. The optoelectronic device according to claim 10 , wherein the organic molecule is one of an emitter and an absorber in the optoelectronic device.
13. The optoelectronic device according to claim 12 , wherein a proportion of the organic molecule in the emitter or the absorber is in the range of 1% to 80%.
14. The optoelectronic device according to claim 10 , 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 is disposed between the anode and the cathode and which comprises the organic molecule.
15. An optoelectronic device comprising the organic molecule according to claim 2 .
16. The optoelectronic device according to claim 15 , wherein the organic molecule is one of an emitter and an absorber in the optoelectronic device.
17. An optoelectronic device comprising the composition according to claim 9 .
18. The optoelectronic device according to claim 17 , 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.
19. The optoelectronic device according to claim 17 , wherein the composition is one of an emitter and an absorber in the optoelectronic device.
20. A process for producing an optoelectronic component, comprising processing of the organic molecule according to claim 1 by an evaporation process or from a solution.