PHOTOELECTRIC CONVERSION DEVICE

摘要

A photoelectric conversion efficiency of a photoelectric conversion device is improved. A photoelectric conversion device 11 comprises an electrode layer 2, a first semiconductor layer 3 disposed on the electrode layer 2 and including a group I-III-VI compound and oxygen element, and a second semiconductor layer 4 disposed on the first semiconductor layer 3 and forming a pn junction with the first semiconductor layer 3, and an atomic concentration of the oxygen element in the first semiconductor layer 3 is lower in a surface portion on the electrode layer 2 side than in a central portion of the first semiconductor layer 3 in a lamination direction thereof.