N-type semiconductor, and organic photoelectric device, image sensor, and electronic device including the same

An n-type semiconductor comprising a compound represented by Chemical Formula 2:

• wherein, in Chemical Formula 2,
• Z1 to Z6 are independently O, S, Se, Te, or C(R)(CN), wherein R is hydrogen, deuterium, a cyano group (—CN), or a C1 to C10 alkyl group,
• R1, R2, and R3 are independently hydrogen, deuterium, a halogen, a C1 to C10 alkyl group, a C1 to C10 haloalkyl group, a C2 to C10 heteroalkyl group, a C6 to C14 aryl group, or a C2 to C10 heteroaryl group, and
• n1, n2, and n3 are independently 0 or 1.