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Keywords:

  • chirality;
  • conducting polymers;
  • liquid crystals;
  • refractive index modulation;
  • structural color
Thumbnail image of graphical abstract

This frontispiece shows a polarizing optical microscopy image of optically active polythiophene (PT) prepared in cholesteric liquid-crystal electrolyte solution containing a cholesterol derivative. The PT film exhibits a variable diffraction function, electrochemically driven refractive index modulation, and electrochromism originating from the periodic dielectric structure, representing a form of structural electrochromism, as described on page 1335.