A thin-film photoelectric converter in which a first electrode layer formed of a transparent conductive material, a photoelectric conversion layer for photoelectric conversion, and a second electrode layer formed of a conductive material that reflects light are stacked in that order on an insulating light-transmitting substrate. The photoelectric conversion layer and the second electrode layer are divided by dividing grooves into islands that form a plurality of photoelectric conversion cells separated from each other, adjacent ones of the plurality of photoelectric conversion cells separated by the dividing grooves being electrically connected in series. The photoelectric conversion layer includes: a first semiconductor layer including a microcrystalline structure; and a second semiconductor layer including an amorphous structure, the second semiconductor layer being disposed so as to surround all side wall portions of the first semiconductor layer that extend in in-plane directions of the insulating light-transmitting substrate.