A poly(3,4-ethylenedioxypyrrole)-Au@WO3 -based electrochromic pseudocapacitor.

摘要: A poly(3,4-ethylenedioxypyrrole)-gold nanoparticle (Au)-tungsten oxide (PEDOP-Au@WO3 ) electrochromic supercapacitor electrode capable of optically modulating solar energy while simultaneously storing/releasing (in the form charge) was fabricated for first time. WO3 fibers, 50 to 200 nm long and 20 60 wide, were synthesized by a hydrothermal route electrophoretically deposited on conducting substrate. Au nanoparticles PEDOP coated over yield PEDOP-Au@WO3 hybrid electrode. The inclusion in confirmed X-ray diffraction, Raman spectroscopy, energy-dispersive analyses. nanoscale electronic conductivity, coloration efficiency, transmission contrast found be significantly greater than those pristine PEDOP. showed high specific discharge capacitance 130 F g(-1) during coloration, which four ten times achieved or PEDOP, respectively. We also demonstrate ability hybrid, relative perform as superior counter cell, is attributed higher work function. redox switching capability decreases insignificantly with cycling, thus establishing viability this multifunction next-generation sustainable devices such psuedocapacitors because it can concurrently conserve store energy.