A light absorption material comprising: a compound having a perovskite crystal structure represented by ABX3 where the A site contains (NH2)2CH+, the B site contains Pb2+, and the X site contains I−. A ratio of the number of atoms of I to the number of atoms of Pb measured by an X-ray photoelectron spectroscopy is 2.7 or less, or a ratio of the number of atoms of I to the number of atoms of Pb measured by a Rutherford backscattering spectroscopy is 2.9 or less.