| abstract |
An electrolyte composition that provides a photoelectrochemical cell having excellent photoelectric conversion characteristics and durability. An electrolyte composition comprising at least a room temperature molten salt, an electrolyte salt dissolved therein, and a molecule forming an oxidation-reduction pair with an anion of the electrolyte salt, comprising: a cation of the room temperature molten salt; The same as the cation. Examples of the cation include a quaternary ammonium cation represented by the following formula. [Wherein, R 1 to R 3 represent the same or different alkyl groups having 1 to 8 carbon atoms, and Me represents a methyl group. ] [Selection diagram] None |