Semiconducting material comprising i) a compound according to formula: wherein R 1, R 2 and R 3 are independently selected from C 1 -C 30 -alkyl, C 3 -C 30 cycloalkyl, C 2 -C 30 -heteroalkyl, C 6 -C 30 -aryl, C 2 -C 30 -heteroaryl, C 1 -C 30 -alkoxy, C 3 -C 30 -cycloalkyloxy, C 6 -C 30 -aryloxy, and from structural unit having general formula E-A-, wherein A is a phenylene spacer unit and E is an electron transporting unit that is selected from C 10 -C 60 aryl and C 6 -C 60 heteroaryl comprising up to 6 heteroatoms independently selected from O, S, P, Si and B and that comprises a conjugated system of at least 10 delocalized electrons, at least one group selected from R 1, R 2 and R 3 has the general formula E-A-, and ii) least one lithium complex having formula wherein A 1 is a C 6 -C 30 arylene or C 2 -C 30 heteroarylene comprising at least one atom selected from O, S and N in an aromatic ring and each of A 2 -A 3 is independently selected from a C 6 -C 30 aryl and C 2 -C 30 heteroaryl comprising at least one atom selected from O, S and N in an aromatic ring, wherein in the compound, in any electron transporting unit -E-A, i) A is m- or p- phenylene and E is C 16 - C 44 pyrenyl or ii) A is m-phenylene and E is C 14 - C 34 anthryl. i) a compound according to formula: wherein R 1, R 2 and R 3 are independently selected from C 1 -C 30 -alkyl, C 3 -C 30 cycloalkyl, C 2 -C 30 -heteroalkyl, C 6 -C 30 -aryl, C 2 -C 30 -heteroaryl, C 1 -C 30 -alkoxy, C 3 -C 30 -cycloalkyloxy, C 6 -C 30 -aryloxy, and from structural unit having general formula E-A-, wherein A is a phenylene spacer unit and E is an electron transporting unit that is selected from C 10 -C 60 aryl and C 6 -C 60 heteroaryl comprising up to 6 heteroatoms independently selected from O, S, P, Si and B and that comprises a conjugated system of at least 10 delocalized electrons, at least one group selected from R 1, R 2 and R 3 has the general formula E-A-, and wherein R 1, R 2 and R 3 are independently selected from C 1 -C 30 -alkyl, C 3 -C 30 cycloalkyl, C 2 -C 30 -heteroalkyl, C 6 -C 30 -aryl, C 2 -C 30 -heteroaryl, C 1 -C 30 -alkoxy, C 3 -C 30 -cycloalkyloxy, C 6 -C 30 -aryloxy, and from structural unit having general formula E-A-, wherein A is a phenylene spacer unit and E is an electron transporting unit that is selected from C 10 -C 60 aryl and C 6 -C 60 heteroaryl comprising up to 6 heteroatoms independently selected from O, S, P, Si and B and that comprises a conjugated system of at least 10 delocalized electrons, at least one group selected from R 1, R 2 and R 3 has the general formula E-A-, and ii) least one lithium complex having formula wherein A 1 is a C 6 -C 30 arylene or C 2 -C 30 heteroarylene comprising at least one atom selected from O, S and N in an aromatic ring and each of A 2 -A 3 is independently selected from a C 6 -C 30 aryl and C 2 -C 30 heteroaryl comprising at least one atom selected from O, S and N in an aromatic ring, wherein in the compound, in any electron transporting unit -E-A, i) A is m- or p- phenylene and E is C 16 - C 44 pyrenyl or ii) A is m-phenylene and E is C 14 - C 34 anthryl. i) A is m- or p- phenylene and E is C 16 - C 44 pyrenyl or ii) A is m-phenylene and E is C 14 - C 34 anthryl.