高性能染料敏化染料电池用的纳米棒基锐钛矿TiO2纳米花的合成研究

lthough one-dimensional nanostructures for dye-sensitized solar cells (DSSCs) have superior properties such as enhanced electron collection of carriers and charge transport compared to spherical nanoparticles, they suffer from low dye-loading cased by small surface areas and unfavorable arrangement for an electron extraction. In this work, nanorods-based anatase TiO2 nanoflowers were successfully prepared by a simple hydrothermal method. Such hierarchical nanostructures can be controlled by reaction time. The dye absorption capacities of the as-prepared samples increase with the reaction time. The power conversion efficiency of the DSSC based on the nanorods-based anatase TiO2 nanoflower obtained for 70 h is 7.29%.