A claylike conductive material comprising polyaniline (PANI)acetylen e black particles is fabricated as a hole conductor for dye sensitiz ed 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 electroly t e

the improvement of the wetting quality of the composite electrolyte

and the reinforcement of interface contact between electrode and the electrolyte. Final ly

the overall energy conversion efficiency of DSSC with PANI50％(in weight) a cetylene black electrolyte is 48％ of that of liquid DSSC. Therefore

the PANI a cetylene black composition is a credible alternative to hole conductor in ap plication of solid DSSC.