A simple approach of enhancing photovoltaic performances of quasi-solid-state dye-sensitized solar cells by integrating conducting polyaniline into electrical insulating gel electrolyte

摘要: Abstract Amphiphilic poly(hydroxyethyl methacrylate/cetytrimethylammonium bromide) [poly(HEMA/CTAB)] gel with a three-dimensional framework is successfully fabricated and employed to integrate polyaniline (PANi). The resultant PANi imbibed poly(HEMA/CTAB) electrolyte provides space for holding I − /I 3 , giving similar conduction mechanism ionic conductivity that of liquid system. caged cannot leak from the under pressure cell assembly. Fourier transform infrared spectra, X-ray diffraction patterns, cyclic voltammograms as well electrochemical impedance spectra are evaluate molecular structure, crystallinity, behaviors, showing combination results in an enhanced conduction, lowered charge-transfer resistance, extended electrocatalytic reaction toward redox couples Pt/gel interface both electrolyte. quasi-solid-state dye-sensitized solar cells based on shows light-to-electric conversion efficiency 6.68%, which higher than PANi-free poly(HEMA/CTAB).