Abstract: A tetraazaperopyrene compound of formula (I): wherein: R1, R2, R3, R4, R5, R6, R7, R8 at each occurrence, independently are selected from H, Cl and Br, with the proviso that at least one of R1, R2, R3, R4, R5, R6, R7 and R8 is Cl or Br, R9, R10, at each occurrence, independently are selected from H, a C1-30 alkyl group, a C1-30 haloalkyl group, a C6-14 aryl group, a heteroaryl group having 5 to 14 ring atoms, and a C7-20 arylalkyl group, wherein aryl, heteroaryl and arylalkyl can be optionally substituted with one or more halogen, C1-4 haloalkyl, —CN, —NO2, —CHO, —COOH, —CONH2, —CO(C1-14 alkyl), —COO(C1-14 alkyl), —CONHC(C1-14 alkyl) and —CON(C1-14 alkyl)2 groups.

Abstract: Provided are tetraazapyrene compounds of formula (I) and their use as n-type semiconductors. In formula (I), R1, R2, R3, R4, at each occurrence, independently are selected from H, a C1-30 alkyl group, a C1-30 alkoxy group, a C1-30 alkylthio group, a C6-14 aryl group, a C6-14 aryloxy group, a C6-14 arylthio group, a C7-20 arylalkyl group, CI and Br; R5, R6, at each occurrence, independently are selected from H, a C1-30 alkyl group, a Cy1-30 haloalkyl group, a C6-14 aryl group and a C7-20 arylalkyl group, wherein aryl and arylalkyl can be optionally substituted with one or more halogen, C1-4 haloalkyl, —CN, —NO2, —CHO, —COOH, —CONH2, —CO(C1-14 alkyl), —COO(C1-14 alkyl), CONHC(C1-14 alkyl) and —CON(C1-14 alkyl)2 groups, with the proviso that at least one of R1, R2, R3, R4 is a C6-14 aryloxy, a C6-14 arylthio I group, CI or Br. (I).

Abstract: A tetraazaperopyrene compound of formula (I): wherein: R1, R2, R3, R4, R5, R6, R7, R8 at each occurrence, independently are selected from H, Cl and Br, with the proviso that at least one of R 1, R2, R3, R4, R5, R6, Wand R8 is Cl or Br, R9, R10, at each occurrence, independently are selected from H, a C1-30 alkyl group, a C1-30 haloalkyl group, a C6-14 aryl group, a heteroaryl group having 5 to 14 ringatoms, and a C7-20 arylalkyl group, wherein aryl, heteroaryl and arylalkyl can be optionally substituted with one or more halogen, C1-4 haloalkyl, —CN, —NO2, —CHO, —COOH, —CONH2, —CO(C1-14 alkyl), —COO(C1-14 alkyl), —CONHC(C1-14 alkyl) and —CON(C1-14 alkyl)2 groups.

Abstract: Provided are tetraazapyrene compounds of formula (I) and their use as n-type semiconductors. In formula (I), R1, R2, R3, R4, at each occurrence, independently are selected from H, a C1-30 alkyl group, a C1-30 alkoxy group, a C1-30 alkylthio group, a C6-14 aryl group, a C6-14 aryloxy group, a C6-14 arylthio group, a C7-20 arylalkyl group, CI and Br; R5, R6, at each occurrence, independently are selected from H, a C1-30 alkyl group, a Cy1-30 haloalkyl group, a C6-14 aryl group and a C7-20 arylalkyl group, wherein aryl and arylalkyl can be optionally substituted with one or more halogen, C1-4 haloalkyl, —CN, —NO2, —CHO, —COOH, —CONH2, —CO(C1-14 alkyl), —COO(C1-14 alkyl), CONHC(C1-14 alkyl) and —CON(C1-14 alkyl)2 groups, with the proviso that at least one of R1, R2, R3, R4 is a C6-14 aryloxy, a C6-14 arylthio I group, CI or Br. (I).