One embodiment of the present invention presents a solar cell comprising an anode, a cathode provided opposite the anode, and a photoactive layer provided between the anode and the cathode and comprising a compound having a perovskite structure. At least one first organic material layer and at least one second organic material layer are alternately provided between the anode and the photoactive layer. The solar cell has excellent electron movement, and the compound having a perovskite structure has high photoelectric transformation efficiency by minimizing a defective part such as a pinhole.