Organic Electronic Device Comprising an Organic Semiconductor Layer

A compound according to formula 1:

• wherein
• X1 to X20 are independently selected from C—H, C—Z, and/or at least two of X1 to X5, X6 to X10, X11 to X15, X16 to X20, which are connected to each other by a chemical bond, are bridged to form an annelated non-hetero aromatic ring, and
• wherein at least one X1 to X2 is selected from C—Z;
• Z is a substituent of formula II:
• wherein
• Ar1 is a substituted or unsubstituted phenylene, substituted or unsubstituted biphenylene, substituted or unsubstituted triphenylene, substituted or unsubstituted anthracene or substituted or unsubstituted C14 to C18 fused non-hetero aryl, wherein
• the substituents of the substituted phenylene, biphenylene, triphenylene, anthracene or C14 to C18 fused non-hetero aryl are independently selected from nitrile, linear C1-20 alkyl, branched C3-20 alkyl or C3-20 cyclic alkyl, linear C1-12 fluorinated alkyl, linear C1-12 fluorinated alkoxy, branched C3-12 fluorinated alkyl, branched C3-12 fluorinated alkoxy, C3-12 cyclic fluorinated alkyl, C3-12 cyclic fluorinated alkoxy, OR, SR, (P═O)R2, —NR2R3 or —BR2R3;
• Ar2 is independently selected from substituted or unsubstituted Cao non-hetero aryl,
• wherein the substituents of the C6-60 non-hetero aryl are independently selected from C1-C20 linear alkyl, C3-C20 branched alkyl or C3-C20 cyclic alkyl;
• C1-C20 linear alkoxy, C3-C20 branched alkoxy;
• linear fluorinated C1-C12 alkyl, or linear fluorinated C1-C2 alkoxy;
• C3-C2 branched cyclic fluorinated alkyl, C3-C12 cyclic fluorinated alkyl, C3-C2 cyclic fluorinated alkoxy, nitrile, OR, SR, (C═O)R, (C═O)NR2, SiR3, (S═O)R, (S═O)2R, (P═O)R2;
• or
• Ar2 is formula 1, with the exception that X1 to X20 are not C—Z;
• R, R2 and R3 is independently selected from H, C1-C20 linear alkyl, C1-C20 alkoxy, C1-C20 thioalkyl, C3-C20 branched alkyl, C3-C20 cyclic alkyl, C3-C20 branched alkoxy, C3-C20 cyclic alkoxy, C6-C20 branched thioalkyl, C3-C20 cyclic thioalkyl, C6-C20 non-hetero aryl;
• n is 1 or 2;
• m is selected from 1, 2 or 3;
• wherein
• none of the non-hetero aromatic rings A, B, C and D are connected via a single bond to a triazine ring;
• wherein the compound of formula I comprises at least 8 to 14 non-hetero aromatic rings;
• wherein a non-hetero 6 member aromatic ring of Ar2 bonds direct via a single bond to Ar1;
• wherein only one tetra aryl ethylene group (TAE) bonds direct via a single bond to Ar1;
• and
• optional excluding compounds of formula 1 that are superimposable on its mirror image.