Photoelectric element, process for producing photoelectric element, and photosensitizer

A photoelectric element comprising:

• a first electrode;
• an electron transport layer supporting a photosensitizer;
• a hole transport layer;
• a second electrode;
• and
• an electrolyte solution, wherein
• the first electrode, the electron transport layer, the hole transport layer, and the second electrode are stacked in order,
• the electron transport layer is formed of an organic compound produced by electrolytic polymerization of a precursor having, within one molecule thereof, two or more moieties each having a structure represented by the following structural formula (1), and
• the organic compound and the electrolyte solution infiltrated into the organic compound constitute a gel layer:
• (in the structural formula (1), M is a cyano group, a fluoro group, a chloro group, or a bromo group, and A− is a counter-anion).