Electrochromic Coordination Polymers

This award account focuses on metallo-supramolecular polymers (MSPs), which are composed of metal ions and multitopic ligands, as a new branch coordination polymers. Their high solubility in polar solvents, such methanol or water their amorphous nature the solid state, enabled formation thin layers MSPs with uniform thickness an electrode surface by spin- spray-coating polymer solution, resulting reversible electrochromic (EC) properties triggered electrochemical redox reactions metal. The EC were characterized terms contrast, switching time, charge consumption, coloration efficiency (η). Dimensionally controlled (one-, two-, three-dimensional) designed, synthesized, evaluated for properties, finding that three-dimensional hyperbranched structures enhanced η value up to 689 cm2/C. introduction multimetal species led multicolor function owing different potentials metals. An MSP Fe(II), Ru(II), Os(II) exhibited quad-color behavior. insolubility weak acetonitrile propylene carbonate, fabrication devices (ECDs) combining electrolytes dissolved solvents. selection appropriate counter material ECDs successfully decreased operation voltage down 0.8 V. Furthermore, driven at 0.6 V was achieved modifying ligands MSPs.