NOVELTY - Substituted aromatic amine compounds (A) are new.    USE - (A) are useful as an emissive material in an emissive layer of an electronic device including organic integrated circuits (O-ICs), organic FETs (O-FETs), organic thin-film transistors (O-TFTs), organic light emitting transistors (O-LET), organic solar cells (O-SCs), organic optical detectors, organic photoreceptors, organic field-quench devices (O-FQDs), light emitting electrochemical cells (LECs), organic laser diodes (O-lasers), and organic electroluminescent devices (claimed).    ADVANTAGE - (A) provide the electronic device with improved light emitting efficiency and durability.    DETAILED DESCRIPTION - Substituted aromatic amine compounds (A) of formulae (I)-(III) are new.    Ar1, Ara=5-30C (hetero)aryl (optionally substituted by R1);    Ar2=10-30C (hetero)aryl (optionally substituted by R1); either    R1=straight-chain 1-20C alkyl, alkoxy or thioalkyl or branched or cyclic 3-20C alkyl, alkoxy or thioalkyl or 2-20C alkenyl or alkynyl, where one or more CH 2 groups in the above groups are replaced by -R2C=CR2-, -CC-, Si(R2) 2, C=O, C=S, C= NR2, -C(=O)O-, -C(=O)NR2-, NR2, P(=O)(R2), -O-, -S-, SO or SO 2, and one or more H atoms in the above groups are replaced by D, F, Cl, Br, I, CN or NO 2, or 5-30C (hetero)aryl, or 5-30C (hetero)aryloxy (all optionally substituted by R2), or H, D, F, Cl, Br, I, C(=O)R2, CN, Si(R2) 3, N(R2) 2, NO 2, P(=O)(R2) 2, S(=O)R2, S(=O) 2R2; or    two or more R1 groups linked=a ring; either    R2=straight-chain 1-20C alkyl, alkoxy or thioalkyl or branched or cyclic 3-20C alkyl, alkoxy or thioalkyl or 2-20C alkenyl or alkynyl, where one or more CH 2 groups in the above groups are replaced by -R3C=CR3-, -CC-, Si(R3) 2, C=O, C=S, C= NR3, -C(=O)O-, -C(=O)NR3-, NR3, P(=O)(R3), -O-, -S-, SO or SO 2, and one or more H atoms in the above groups are replaced by D, F, Cl, Br, I, CN or NO 2, or 5-30C (hetero)aryl, or 5-30C (hetero)aryloxy (all optionally substituted by R3), or H, D, F, Cl, Br, I, C(=O)R3, CN, Si(R3) 3, N(R3) 2, NO 2, P(=O)(R3) 2, S(=O)R3, S(=O) 2R3; or    two or more R2 groups linked=a ring; either    R3=aliphatic 1-20C heteroaryl, where one or more H atoms are replaced by D or F, or H, D, or F; or    two or more R3 groups linked=a ring;    X=BR1, C(R1) 2, C(R1) 2-C(R1) 2, Si(R1) 2, Si(R1) 2-Si(R1) 2, C=O, C=NR1, C=C(R1) 2, C(=O)N(R1), O, S, S=O, SO 2, NR1, PR1 or P(=O)R1;    a, m-r=0 or 1, provided that when m-r are 0, at the respective positions, then X binds to the corresponding groups, instead of a R1 group bound; and    b=0-2, where the sum of m and n, o and p, and q and r is 1 or 2, respectively.    INDEPENDENT CLAIMS are included for:    (1) oligomers, polymers or dendrimers comprising (A), where the polymers, oligomers or dendrimers are bonded to (A) at any positions of R1 or R2 substituted;    (2) a formulation comprising at least one (A) or at least one polymer, oligomer or dendrimer, and at least one solvent; and    (3) the preparation of (A).