敏化太阳能电池电极的制备与性能研究

Preparation and Properties of Electrodes for Sensitized Solar Cells

通过水热法制备了TiO_2纳米棒阵列、纳米片和微球,并在此基础上制备了复合TiO_2电极,分析了不同配比的复合电极的光电性能。结果表明,在复合太阳能电极中增加TiO_2纳米片的含量可以提升整体的晶化效果;不同TiO_2纳米片含量的复合电极荧光峰强变化特征相似,4种不同TiO_2纳米片含量的复合电极中,50NS复合电极的荧光峰处于最低值且具有最小的界面电阻,电子的传输速率将更快;在TiO_2纳米片含量为50%时,即50NS复合TiO_2电极的光伏性能最好。

TiO2 nanorods arrays, nanosheets and microspheres were prepared by hydrothermal method. On the basis of the composite TiO2 electrodes were prepared and the photoelectric properties of the composite electrodes with different ratios were analyzed. The results show that the increase of the content of nano-TiO2 in the composite solar electrode can enhance the overall crystallization. The fluorescence intensity peaks of the composite electrodes with different TiO2 nanosheets are similar. In the four composite electrodes with different TiO2 nanosheets, the fluorescence peak of 50NS composite electrode is the lowest and presents the smallest interface resistance. As a result, the electron transport rate will be faster. When the content of TiO2 nanosheets is 50%, the photovoltaic properties of 50NS composite TiO2 electrode is the best.