固态染料敏化太阳能电池用聚苯胺-乙炔黑空穴导体的制备

以粘土状的聚苯胺-乙炔黑导电材料为空穴导体,制备了固态染料敏化太阳能电池.研究结果表明,将乙炔黑颗粒加入到聚苯胺电解质中,可明显提高该固态染料敏化太阳能电池的光电转换效率.这是由于加入的乙炔黑不仅可以提高聚苯胺电解质的空穴迁移率,改善其可润湿性,而且加强了电解质与光阳极以及对电极之间的界面接触性.最后,加入50%乙炔黑的聚苯胺电解质的电池光电转换效率达到了液态电池的48%.因此,聚苯胺-乙炔黑复合电解质可以作为有效的空穴导体材料,应用到固态染料敏化太阳能电池中.

PREPARATION OF POLYANILINE/ACETYLENE BLACK COMPOSITE AS HOLE CONDUCTOR IN SOLID-STATE DYE-SENSITIZED SOLAR CELL

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.