Photoelectric cell, coating liquid for forming metal oxide semiconductor film, and method for producing metal oxide semiconductor film for photoelectric cell

摘要

PROBLEM TO BE SOLVED: To provide a photoelectric cell having a high adsorption quantity of a photosensitizer, high reactive activity, smooth transfer of an electron in a semiconductor, and enhanced photoelectric transfer efficiency. SOLUTION: In this photoelectric cell, a substrate having an electrode layer 1 on its surface, while a metal oxide semiconductor layer 2 adsorbing a photosensitizer is formed on the surface of the electrode layer 1, and a substrate having an electrode layer 3 on its surface are disposed so that the electrode layer 1 faces the electrode layer 3, and an electrolyte layer is provided between the metal oxide semiconductor layer 2 and the electrode layer 3. At least either one of the substrates and the electrodes is transparent, and the metal oxide semiconductor layer 2 contains a titanium oxide particle containing a brookite type crystal in this photoelectric cell.