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The photoconductivity of amorphous As 2 S 8 chalcogenide film under the irradiation of bandgap light is investigated. In the temperature range 300-350 K, the dark conductivity and photoconductivity of the annealed As 2 S 8 film increase with the temperature, and the dependence of the both on temperature shows that the conduction in As 2 S 8 film is an activated process having single activation energy. Under the irradiation of bandgap light, the photocurrents of the annealed and illuminated As 2 S 8 film increase with the irradiation intensity, and their difference indicates the existence of the light-soaked effect. Meanwhile, the photoconductivity degradation during the irradiation and the photocurrent decay after stopping the irradiation are observed. By adding the irradiation of the sub-bandgap light, the enhancement of photoinduced voltage occurs. C 2013 Author(s)