▎ 摘　　要

We review the photosignal formation mechanisms, architecture, and main parameters of photosensors based on group-III, IV, V, and VI monoatomic 2D materials, specifically, graphene and graphene-like materials, silicene, germanene, black phosphorus, black phosphorus-arsenic solid solutions, antimonene, bismuthene, tellurene, borophene, and heterostructures containing 2D materials, including those combined with other low-dimensional materials, as well as photosensors with plasmonic nanoantennas.