A clay-like conductive material comprising polyaniline(PANI)-acetylene black particles is fabricated as a hole conductor for dye sensitized solar cell(DSSC).The results show that the introduction of acetylene black into the polymer electrolyte improves the photovoltaic behavior of solid-state DSSC,owing to the increase of the hole mobility of PANI electrolyte,the improvement of the wetting quality of the composite electrolyte,and the reinforcement of interface contact between electrode and the electrolyte.Finally,the overall energy conversion efficiency of DSSC with PANI-50%(in weight)acetylene black electrolyte is 48% of that of liquid DSSC.Therefore,the PANI-acetylene black composition is a credible alternative to hole conductor in application of solid DSSC.
The gel polymer electrolytes(GPEs)based on poly(vinylidence fluoride)(PVDF)/acrylate interpenetrating polymer network(IPN)are prepared.The micro-phase separation type GPEs are characterized by Fourier transform infrared(FTIR)spectroscopy,scanning electron microscope(SEM),respectively.Moreover,the conductivity and the voltage-current curves of the electrolytes are measured by electrochemical workstation.The higher porosity and electrolyte uptake are observed in the membranes prepared at lower crosslinker concentration.The suitable cross-linking acrylate monomer improves the porosity and the electrochemical behavior of GPE.A dye-sensitized solar cell(DSSC)employing PGE based on PVDF/poly(ethylene glycol dimethacrylate)(PEGDMA)IPN yields an open-circuit voltage of 0.674 V,short-circuit current of 8.476 mA·cm-2and the conversion efficiency of 2.710% under 100 mW·cm-2illumination.