Optimizing electrochromism for plasmonic electronic paper: Inorganic vs organic

The combination of plasmonic nanostructures and electrochromic materials for dynamic color generation has been of interest in recent year due to the possibility to make reflective displays (electronic paper) in full color with extremely low power consumption compared to emissive displays. We show a comparison between an inorganic electrochromic material, tungsten trioxide (WO3), and an organic one, PProDOT-Me2, for the purpose of electrical modulation of the resonantly reflected light from plasmonic nanostructures. The comparison focuses on achievable contrast, switching speed, coloration memory and power consumption.