Electronic device

1. An electronic device comprising anode, cathode and at least one organic layer, which comprises at least one compound of the formula (I) or (II)

where a group selected from the groups of the formulae

is bonded at the positions denoted by *, where:

E is selected on each occurrence, identically or differently, from a single bond, C(R 1 ) 2 , Si(R 1 ) 2 , C═O, O, S, S═O, SO 2 and NR 1 ;

Z is on each occurrence, identically or differently, CR 1 or N;

W is selected on each occurrence, identically or differently, from C═O, O, S, S═O, SO 2 and NR 1 ;

Ar 1 is selected on each occurrence, identically or differently, from aryl or heteroaryl groups having 6 to 13 aromatic ring atoms, which is optionally substituted by one or more radicals R 1 ;

Ar 2 is selected on each occurrence, identically or differently, from aryl or heteroaryl groups having 6 to 13 aromatic ring atoms, which is optionally substituted by one or more radicals R 1 ;

X is selected on each occurrence, identically or differently, from C(R 1 ) 2 , Si(R 1 ) 2 , C═O, O, S, S═O, SO 2 and NR 1 ;

Y is a single bond;

R 1 is on each occurrence, identically or differently, H, D, F, C(═O)R 2 , CN, Si(R 2 ) 3 , N(R 2 ) 2 , P(═O)(R 2 ) 2 , S(═O)R 2 , S(═O) 2 R 2 , a straight-chain alkyl or alkoxy group having 1 to 20 C atoms or a branched or cyclic alkyl, or alkoxy group having 3 to 20 C atoms or an alkenyl or alkynyl group having 2 to 20 C atoms, where the above-mentioned groups may each be substituted by one or more radicals R 2 and where one or more CH 2 groups in the above-mentioned groups is optionally replaced by —R 2 C═CR 2 —, —C≡C—, Si(R 2 ) 2 , C═O, C═S, C═NR 2 , —C(═O)O—, —C(═O)NR 2 —, NR 2 , P(═O)(R 2 ), —O—, —S—, SO or SO 2 and where one or more H atoms in the above-mentioned groups is optionally replaced by D, F or CN, or an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R 2 , or an aryloxy or heteroaryloxy group having 5 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R 2 , where two or more radicals R 1 is optionally linked to one another and may form a ring;

R 2 is on each occurrence, identically or differently, H, D, F or an aliphatic, aromatic or heteroaromatic organic radical having 1 to 20 C atoms, in which, in addition, one or more H atoms is optionally replaced by D or F; two or more substituents R 2 here is optionally linked to one another and may form a ring;

n is on each occurrence, identically or differently, 0, 1, 2, 3 or 4;

i is on each occurrence, identically or differently, 0 or 1;

k is on each occurrence, identically or differently, 0 or 1, where at least one index k per group of the formula (C-1) must be equal to 1;

and where a group selected from groups of the formulae (A-1) and (A-2) must be bonded at at least one of the positions denoted by *,

and where furthermore no condensed aryl or heteroaryl group having 14 or more aromatic ring atoms is present in the compound.

2. The electronic device according to claim 1 , wherein the group E is selected on each occurrence, identically or differently, from a single bond, C(R 1 ) 2 , C═O, O, S and NR 1 .

3. The electronic device according to claim 1 , wherein the group Ar 1 is selected on each occurrence, identically or differently, from aryl or heteroaryl groups having 6 to 10 aromatic ring atoms, which is optionally substituted by one or more radicals R 1 .

4. The electronic device according to claim 1 , wherein the group Ar 2 is selected on each occurrence, identically or differently, from aryl or heteroaryl groups having 6 to 10 aromatic ring atoms, which is optionally substituted by one or more radicals R 1 .

5. The electronic device according to claim 1 , wherein R 1 is on each occurrence, identically or differently, H, D, F, CN, Si(R 2 ) 3 , N(R 2 ) 2 , a straight-chain alkyl or alkoxy group having 1 to 20 C atoms or a branched or cyclic alkyl or alkoxy group having 3 to 20 C atoms, where the above-mentioned groups may each be substituted by one or more radicals R 2 and where one or more CH 2 groups in the above-mentioned groups is optionally replaced by —C≡C—, —R 2 C═CR 2 —, Si(R 2 ) 2 , C═O, C═NR 2 , —NR 2 —, —O—, —S—, —C(═O)O— or —C(═O)NR 2 —, or an aromatic or heteroaromatic ring system having 5 to 20 aromatic ring atoms, which is optionally substituted by one or more radicals R 2 , where two or more radicals R 1 is optionally linked to one another and may form a ring.

6. The electronic device according to claim 1 , wherein the index n is on each occurrence, identically or differently, 0 or 1.

7. The electronic device according to claim 1 , wherein the index i is equal to 0.

8. The electronic device according to claim 1 , wherein in compounds of the formulae (I) and (II), a group selected from groups of the formula (A-1) and (A-2) according to claim 1 is bonded at the positions denoted by *.

9. The electronic device according to claim 1 , wherein the compounds of the formulae (I) and (II) contain no further arylamino groups in addition to the groups (A-1), (A-2), (C-1) and (C-2) according to claim 1 .

10. The electronic device according to claim 1 , wherein the compounds of the formulae (I) and (II) contain no further carbazole groups in addition to the groups (A-1), (A-2), (C-1) and (C-2) according to claim 1 .

11. The electronic device according to claim 1 , wherein the compounds of the formula (I) are compounds of the following formulae (I-1) to (I-4):

where E 1 is selected from C(R 1 ) 2 , Si(R 1 ) 2 , C═O, O, S, S═O, SO 2 and NR 1 ,

where a group selected from the groups of the formulae (A-1), (A-2), (C-1) and (C-2) according to claim 1 is bonded at the positions denoted by *,

and where a group selected from groups of the formulae (A-1) and (A-2) according to claim 1 is bonded at at least one of the positions denoted by *,

and where all other groups are defined as in claim 1 .

12. The electronic device according to claim 1 , wherein the device is an organic integrated circuit (OIC), an organic field-effect transistor (OFET), an organic thin-film transistor (OTFT), an organic light-emitting transistor (OLET), an organic solar cell (OSC), an organic optical detector, an organic photoreceptor, an organic field-quench device (OFQD), an organic light-emitting electrochemical cell (OLEC), an organic laser diode (O-laser) or an organic electroluminescent device (OLED).

13. The electronic device according to claim 12 , wherein the device is an organic electro-luminescent device comprising an organic layer which comprises the compound of the formula (I) or (II) is a layer having a hole-transporting function or an emitting layer.

14. A display and/or as light source in lighting applications and/or as light source in medical or cosmetic applications which comprises the electronic device according to claim 1 .

15. An electronic device in a hole-transporting or in an emitting layer which comprises the compound of the formula (I) or (II)

where a group selected from the groups of the formulae

is bonded at the positions denoted by *, where:

E is selected on each occurrence, identically or differently, from a single bond, C(R 1 ) 2 , Si(R 1 ) 2 , C═O, O, S, S═O, SO 2 and NR 1 ;

Z is on each occurrence, identically or differently, CR 1 or N;

W is selected on each occurrence, identically or differently, from C═O, O, S, S═O, SO 2 and NR 1 ;

Ar 1 is selected on each occurrence, identically or differently, from aryl or heteroaryl groups having 6 to 13 aromatic ring atoms, which is optionally substituted by one or more radicals R 1 ;

Ar 2 is selected on each occurrence, identically or differently, from aryl or heteroaryl groups having 6 to 13 aromatic ring atoms, which is optionally substituted by one or more radicals R 1 ;

X is selected on each occurrence, identically or differently, from C(R 1 ) 2 , Si(R 1 ) 2 , C═O, O, S, S═O, SO 2 and NR 1 ;

Y is a single bond;

R 1 is on each occurrence, identically or differently, H, D, F, C(═O)R 2 , CN, Si(R 2 ) 3 , N(R 2 ) 2 , P(═O)(R 2 ) 2 , S(═O)R 2 , S(═O) 2 R 2 , a straight-chain alkyl or alkoxy group having 1 to 20 C atoms or a branched or cyclic alkyl, or alkoxy group having 3 to 20 C atoms or an alkenyl or alkynyl group having 2 to 20 C atoms, where the above-mentioned groups may each be substituted by one or more radicals R 2 and where one or more CH 2 groups in the above-mentioned groups is optionally replaced by —R 2 C═CR 2 —, —C≡C—, Si(R 2 ) 2 , C═O, C═S, C═NR 2 , —C(═O)O—, —C(═O)NR 2 —, NR 2 , P(═O)(R 2 ), —O—, —S—, SO or SO 2 and where one or more H atoms in the above-mentioned groups is optionally replaced by D, F or CN, or an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R 2 , or an aryloxy or heteroaryloxy group having 5 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R 2 , where two or more radicals R 1 is optionally linked to one another and may form a ring;

R 2 is on each occurrence, identically or differently, H, D, F or an aliphatic, aromatic or heteroaromatic organic radical having 1 to 20 C atoms, in which, in addition, one or more H atoms is optionally replaced by D or F; two or more substituents R 2 here is optionally linked to one another and may form a ring;

n is on each occurrence, identically or differently, 0, 1, 2, 3 or 4;

i is on each occurrence, identically or differently, 0 or 1;

k is on each occurrence, identically or differently, 0 or 1, where at least one index k per group of the formula (C-1) must be equal to 1;

and where a group selected from groups of the formulae (A-1) and (A-2) must be bonded at at least one of the positions denoted by *,

and where furthermore no condensed aryl or heteroaryl group having 14 or more aromatic ring atoms is present in the compound.