Conventional optoconductive compounds, such as CIS or CdTe include scarce indium or environmentally-unfriendly cadmium. On the other hand, an optoconductive compound according to the present invention has high optoconductive efficiency without inclusion of indium and cadmium, wherein the optoconductive compound according to the present invention is represented by AXYY' where A is a Group 11 element, X is a Group 15 element, and Y and Y' are Group 16 elements in which Y and Y' can be identical to or different from each other.