Journal
JOURNAL OF APPLIED PHYSICS
Volume 105, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3126524
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A pi-conjugated polymer film prepared by electrolytic polymerization using a cholesteric liquid crystal (CLC) is demonstrated to have a tunable interference function under electrochemical doping and dedoping. The polymer exhibits a CLC-like periodic structure with a potential-dependent refractive index and optical absorption properties. The interference color of the polymer film can thus be modulated dynamically by appropriate application of a voltage in the +/- 1 V range. This research involves structural chirality and tunable chiroptical properties, doping-dedoping driven tunable refractive index, electrochromism, and interference color modulation for the present polymer. The phenomena demonstrate the possibility of electrochemical photonics. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3126524]
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