【摘要】 本文通过电喷ZnO纳米颗粒和聚乙烯醇(PVA)溶液的方法成功地制备了多孔ZnO薄膜,并以染料敏化的ZnO薄膜作为光阳极,离子液体作为电解质,组装了染料敏化太阳电池(DSSC)。详细地讨论了多孔ZnO薄膜的形貌及其形成机理,研究了薄膜的光谱学特征,薄膜厚度和敏化时间对电池性能的影响。在薄膜厚度为14μm和敏化时间为30m in条件下,以模拟太阳光为光源(光强125 mW/cm2),电池的短路光电流(Isc)为14.9 mA/cm2,开路光电压(Voc)为0.49 V,填充因子(ff)为56.2%,光电转换效率(η)可达到了3.3%。更多还原

【Abstract】 Porous ZnO films were prepared by electrospray coating technique with the solution of ZnO nanoparticles and polyvinyl alcohol(PVA) and used as photoanodes in dye-sensitized solar cells(DSSC).The mechanism for fabricating porous ZnO films and the effect of film thickness and sensitizing time on the cells’ performance were discussed in detail.Under the optimal film thickness(14 μm) and sensitizing time(30 min),the short-circuit photocurrent(Jsc) of the cell is 14.9 mA/cm2,the open-circuit photovoltage(Voc) is 0.49 V,the fill factor(ff) is 56.2% and the solar energy conversion efficiency(η) is 3.3 % under illumination of simulated solar light(125mW/cm2).The universality of ESC technique in fabricating porous films was also investigated.更多还原