| 摘要 |
A solar cell element includes: a transparent body; a MgxAg1-x layer (0.001≰x≰0.045) having a thickness (2-13 nm); and a ZnO layer having an arithmetical mean (Ra: 20-870 nm); a transparent conductive layer; and a photoelectric conversion layer including n-type and p-type layers, further includes n-side and p-side electrodes, the ZnO layer is composed of ZnO columnar crystal grains grown on the MgxAg1-x layer; each ZnO grain has a longitudinal direction along a normal line of the body, and has a width increasing from the MgxAg1-x layer toward the transparent conductive layer, and has a width which appears by cutting each ZnO grain along the normal line, and has a R2/R1 ratio (1.1-1.8); where R1 represents the width of one end of the ZnO grain, the one end being in contact with the surface of the MgxAg1-x layer; and R2 represents the width of the other end of the ZnO grain. |
