| 主权项 |
1. A solar cell comprising:
a substrate having a principal surface; a first collector on the principal surface; a dielectric covering a portion of the principal surface and a first portion of the first collector; a light absorber covering at least a second portion of the first collector and a portion of the dielectric and containing a perovskite compound represented by a compositional formula of ABX3, where A is a site for one or more monovalent cations, B is a site for one or more divalent cations, and X is a site for one or more halide anions; and a second collector on the light absorber and the dielectric, the second collector insulated from the first collector by the dielectric, wherein in a cross-section perpendicular to the principal surface, a difference between a height, from the principal surface, of a top of the dielectric in a region where the dielectric covers the first portion of the first collector and a height, from the principal surface, of a bottom of the light absorber in a region where the light absorber covers the at least the second portion of the first collector and does not cover the dielectric is 200 nm or less. |
