A process for manufacturing an electronic device comprising a semiconducting layer, which process comprises i) a step of applying a composition comprising at least a compound of formulae or on a precursor of the electronic device in order to form a layer, and ii) a step of treating the layer of step i) with light in order to form a semiconducting layer, wherein Ar 1 is C 6-14 -aryl or 5 to 14-membered heteroaryl, which C 6-14 -aryl and 5 to 14-membered heteroaryl can be substituted by one to three substituents independently selected from the group consisting of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl and S-C 1-30 -alkyl, wherein one to four CH 2 groups of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl, S-C 1-30 -alkyl can independently be replaced by O, S, NR 1 or CO, wherein R 1 is H or C 1-10 -alkyl, A is a C 6-18 aromatic ring system, which includes the C-atoms marked with a #, or a 5 to 17- membered heteroaromatic ring system, which includes the C-atoms marked with a #, which C 6-18 aromatic ring system and 5 to 17- membered heteroaromatic ring system can be substituted by one to five substituents independently selected from the group consisting of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl and S-C 1-30 -alkyl, wherein one to four CH 2 groups of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl, S-C 1-30 -alkyl can independently be replaced by O, S, NR a or CO, wherein R a is H or C 1-10 -alkyl, B is a C 6-14 aromatic ring system, which includes the C-atoms marked with a *, or a 5 to 14 membered heteroaromatic ring system, which includes the C-atoms marked with a *, which C 6-14 aromatic ring system and 5 to 14- membered heteroaromatic ring system can be substituted by one to five substituents independently selected from the group consisting of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl and S-C 1-30 -alkyl, wherein one to four CH 2 groups of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl, S-C 1-30 -alkyl can independently be replaced by O, S, NR b or CO, wherein R b is H or C 1-10 -alkyl, and X - is an organic or inorganic anion. i) a step of applying a composition comprising at least a compound of formulae or on a precursor of the electronic device in order to form a layer, and ii) a step of treating the layer of step i) with light in order to form a semiconducting layer, Ar 1 is C 6-14 -aryl or 5 to 14-membered heteroaryl, which C 6-14 -aryl and 5 to 14-membered heteroaryl can be substituted by one to three substituents independently selected from the group consisting of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl and S-C 1-30 -alkyl, wherein one to four CH 2 groups of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl, S-C 1-30 -alkyl can independently be replaced by O, S, NR 1 or CO, wherein R 1 is H or C 1-10 -alkyl, A is a C 6-18 aromatic ring system, which includes the C-atoms marked with a #, or a 5 to 17- membered heteroaromatic ring system, which includes the C-atoms marked with a #, which C 6-18 aromatic ring system and 5 to 17- membered heteroaromatic ring system can be substituted by one to five substituents independently selected from the group consisting of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl and S-C 1-30 -alkyl, wherein one to four CH 2 groups of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl, S-C 1-30 -alkyl can independently be replaced by O, S, NR a or CO, wherein R a is H or C 1-10 -alkyl, B is a C 6-14 aromatic ring system, which includes the C-atoms marked with a *, or a 5 to 14 membered heteroaromatic ring system, which includes the C-atoms marked with a *, which C 6-14 aromatic ring system and 5 to 14- membered heteroaromatic ring system can be substituted by one to five substituents independently selected from the group consisting of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl and S-C 1-30 -alkyl, wherein one to four CH 2 groups of C 1-30 -alkyl, C 2-30 -alkenyl, C 2-30 -alkynyl, O-C 1-30 -alkyl, S-C 1-30 -alkyl can independently be replaced by O, S, NR b or CO, wherein R b is H or C 1-10 -alkyl, and X - is an organic or inorganic anion.