Disclosed is a photoelectric conversion element including a cell. The cell includes a first electrode, a second electrode, an oxide semiconductor layer provided on the first electrode, and an electrolyte provided between the first and second electrodes. The second electrode includes an annular portion, an approaching portion approaching the oxide semiconductor layer closer than the annular portion and an annular connecting portion connecting the annular portion and the approaching portion, and the oxide semiconductor layer includes an inner part facing the approaching portion on the first electrode and an annular outer part provided around the inner part and facing the connecting portion. The outer part includes a plurality of linear portions separated from one another and a corner portion connecting two adjacent linear portions to each other, the corner portion is thicker than the linear portion, and the linear portion is thicker than the inner part.
所公开的光电转换元件包括一个电池。电池包括第一电极、第二电极、设置在第一电极上的
氧化物半导体层以及设置在第一电极和第二电极之间的电解液。第二电极包括一个环形部分、一个比环形部分更接近
氧化物半导体层的接近部分和一个连接环形部分和接近部分的环形连接部分,
氧化物半导体层包括一个面向第一电极上的接近部分的内部部分和一个环绕内部部分并面向连接部分的环形外部部分。外部部分包括多个相互分隔的线性部分和连接两个相邻线性部分的转角部分,转角部分比线性部分厚,线性部分比内部部分厚。