Electrochromic mirror using viologen-anchored nanoparticles

• Three types of ECM device were fabricated using viologen-anchored ECDs.
• The devices were investigated according to their optical structures.
• The anti-reflection material affects the reflectance and the coloration efficiency.
• The device design of ECMs is a crucial factor for clear reflected images.

Electrochromic mirrors (ECMs) that are used in automobile mirrors need to have high reflectance, a high contrast ratio, and a clear image. In particular, it is critical that distortions of clear images are minimized for safety. Therefore, an ECM is fabricated using viologen-anchored nanoparticles and a magnesium fluoride (MgF2) layer with an anti-reflection function. The ECM has approximately 30.42% in the reflectance dynamic range and 125 cm2/C high coloration efficiency.

Figure optionsDownload as PowerPoint slide