A photoelectric conversion device comprising: a transparent substrate; a first photoelectric conversion part including a first transparent electrode provided on the transparent substrate, a first photoelectric conversion layer disposed on the first transparent electrode and containing a perovskite compound, and a first counter electrode disposed on the first photoelectric conversion layer; a second photoelectric conversion part including a second transparent electrode provided on the transparent substrate adjacently to the first transparent electrode and separated from the first transparent electrode, a second photoelectric conversion layer disposed on the second transparent electrode adjacently to the first photoelectric conversion layer and containing a perovskite compound, and a second counter electrode disposed on the second photoelectric conversion layer; a connection part electrically connecting the first counter electrode and the second transparent electrode; and an inactive region provided between the first photoelectric conversion layer and the second photoelectric conversion layer to electrically separate adjacent portions of the first photoelectric conversion layer and the second photoelectric conversion layer, and the inactive region having electrical resistance higher than electrical resistance of the first and second photoelectric conversion layers, wherein the perovskite compound has a composition represented by a general formula: ABX 3 where the A site is at least one monovalent cation selected from the group consisting of a methylammonium ion, a formamidinium ion, a potassium ion, a rubidium ion, and a cesium ion, the B site is at least one divalent cation selected from the group consisting of a lead ion, a germanium ion, and a tin ion, and the X site is at least one monovalent halogen anion, characterised in that the at least one monovalent halogen anion is selected from the group consisting of an iodine ion, a bromide ion, and a chlorine ion, and the inactive region contains a halide of at least one metal selected from a metal composing the A site and a metal composing the B site. a transparent substrate; a first photoelectric conversion part including a first transparent electrode provided on the transparent substrate, a first photoelectric conversion layer disposed on the first transparent electrode and containing a perovskite compound, and a first counter electrode disposed on the first photoelectric conversion layer; a second photoelectric conversion part including a second transparent electrode provided on the transparent substrate adjacently to the first transparent electrode and separated from the first transparent electrode, a second photoelectric conversion layer disposed on the second transparent electrode adjacently to the first photoelectric conversion layer and containing a perovskite compound, and a second counter electrode disposed on the second photoelectric conversion layer; a connection part electrically connecting the first counter electrode and the second transparent electrode; and an inactive region provided between the first photoelectric conversion layer and the second photoelectric conversion layer to electrically separate adjacent portions of the first photoelectric conversion layer and the second photoelectric conversion layer, and the inactive region having electrical resistance higher than electrical resistance of the first and second photoelectric conversion layers, wherein the perovskite compound has a composition represented by a general formula: ABX 3 where the A site is at least one monovalent cation selected from the group consisting of a methylammonium ion, a formamidinium ion, a potassium ion, a rubidium ion, and a cesium ion, the B site is at least one divalent cation selected from the group consisting of a lead ion, a germanium ion, and a tin ion, and the X site is at least one monovalent halogen anion, characterised in that the at least one monovalent halogen anion is selected from the group consisting of an iodine ion, a bromide ion, and a chlorine ion, and the inactive region contains a halide of at least one metal selected from a metal composing the A site and a metal composing the B site.