Improved electrochromic performance of viologen at an ITO-nanoparticle film electrode

- ITO-nanoparticle film electrode was prepared by a dip-coating method.
- Electrochromic properties of a viologen were examined at the electrode.
- The problem of the incomplete vanishing was resolved.
- Cyclic characteristics of coloration and decoloration were considerably improved.
- A schematic model for the improvement was presented.