Patent ID: 10141118

Abstract:
A carrier system carries a dye (A) and a co-adsorbent (B) represented by general formula (1):wherein, ring A represents a 5- or 6-membered heterocycle and may further be fused; a hydrogen atom in the ring A may be replaced by a halogen atom, a cyano group, a nitro group, an —OR2 group, an —SR2 group, or a hydrocarbon group that may have a substituent; Z represents a divalent aliphatic hydrocarbon group that is interrupted zero to three times by —O— etc.; Z1 represents a divalent aromatic group; R1 represents a carboxylic acid group, a sulfonic acid group, a phosphoric acid group, or a phosphonic acid group; R2 and R3 each represent a hydrogen atom or a hydrocarbon group that may have a substituent; Anm− represents an m-valent anion; m represents an integer of 1 or 2; and p represents a coefficient for keeping the electrical charge neutral.