Solar cell and method for manufacturing solar cell

A method for producing a solar cell, comprising:

• forming a hard film on a flexible substrate;
• forming an electrode on the hard film and scribing the electrode;
• forming a photoelectric conversion layer on the scribed electrode and scribing the photoelectric conversion layer;
• and
• forming a transparent electrode on the scribed photoelectric conversion layer and scribing the transparent electrode,
• the hard film containing a nitride, carbide, or boride, the nitride, carbide, or boride containing at least one element selected from the group consisting of titanium, zirconium, aluminum, silicon, magnesium, vanadium, chromium, molybdenum, tantalum, and tungsten.

A solar cell comprising, in the stated order:

• a cathode;
• an electron transport layer;
• a photoelectric conversion layer;
• and
• an anode,
• the photoelectric conversion layer containing an organic-inorganic perovskite compound represented by the formula:
• R-M-X3, wherein R represents an organic molecule;
• M represents a metal atom;
• and X represents a halogen atom or a chalcogen atom,
• the cathode containing a metal having a lower ionization tendency than titanium.