NONVOLATILE ELECTROCHROMIC ELEMENT AND METHOD FOR CONTROLLING MOVEMENT OF CATIONS

摘要

A nonvolatile electrochromic element (1) equipped with: a cation movement part (4) comprising a cyano-bridged metal complex represented by the chemical formula AxM[L(CN)6]y·nH2O; and a movement barrier part (7) disposed in an inner part of or on a surface of the cation movement part (4), the movement barrier part (7) comprising a cyano-bridged metal complex containing an alkali metal A', which is at least one alkali metal having a larger atomic radius than the alkali metal A of the cyano-bridged metal complex constituting the cation movement part (4). Thus, nonvolatility is imparted to an electrochromic element made using a cyano-bridged metal complex.