High Contrast Ratio and Fast-Switching Dual Polymer Electrochromic Devices

摘要: A series of dual polymer electrochromic devices (ECDs) based on 12 complementary pairs conducting films have been constructed using 3,4-ethylenedioxythiophene-containing polymers. Poly[3,6-bis(2-(3,4-ethylenedioxythiophene))-N-methylcarbazole] (PBEDOT-NCH3Cz), poly[3,6-bis(2-(3,4-ethylenedioxythiophene))-N-eicosylcarbazole] (PBEDOT-NC20H41Cz), and poly[4,4‘-bis(2-(3,4-ethylenedioxythiophene))biphenyl] (PBEDOT-BP) were utilized as anodically coloring polymers that electrochemically switch between an oxidized deep blue absorptive state a transmissive (orange or yellow) reduced state. Poly(3,4-ethylenedioxythiophene) (PEDOT) its alkyl derivatives (PEDOT-C14H29 PEDOT-C16H33) used high-contrast cathodically in the form sky blue, highly form. The ECDs by separating EC films, deposited ITO...