Composite fine particles, solar cell, member for photoelectric conversion elements, and photoelectric conversion element

A composite fine particle, comprising:

• an inorganic fine particle having a light wavelength conversion ability;
• a continuous or discontinuous first coating layer formed on the whole or a part of a surface of the inorganic fine particle;
• a second coating layer formed on the first coating layer;
• and
• a third coating layer formed on the second coating layer, wherein
• the second coating layer contains a multidentate organic ligand that is an organic compound having light absorption in a near-infrared or infrared range and has at least two or more coordination sites, and
• the first coating layer is a metal layer or an inorganic compound layer containing a coordination metal capable of forming a coordination bond with the multidentate organic ligand and a transition metal identical to or different from the coordination metal, and
• the third coating layer is a metal layer or an inorganic compound layer containing a coordination metal capable of forming a coordination bond with the multidentate organic ligand.