Hydrothermal Fabrication of Quasi-One-Dimensional Single-Crystalline Anatase TiO2 Nanostructures on FTO Glass and Their Applications in Dye-Sensitized Solar Cells
Hydrothermal Fabrication of Quasi-One-Dimensional Single-Crystalline Anatase TiO2 Nanostructures on FTO Glass and Their Applications in Dye-Sensitized Solar Cells
复制标题
DOI：
10.1002/chem.201002244
复制
发表时间：
2011-01-01
影响因子：
4.3
通讯作者：
Kuang, Dai-Bin
中科院分区：
文献类型：
--
作者：
Liao, Jin-Yun;Lei, Bing-Xin;Kuang, Dai-Bin
一维和准一维半导体纳米结构对于染料敏化太阳能电池（DSSC）来说是理想的，因为它们可以为快速收集光生电子提供直接路径，从而可以提高器件的光伏性能。采用水热法在透明导电掺氟氧化锡（FTO）玻璃上成功制备了[101]晶向的准一维单晶TiO 2纳米结构。详细研究了钛酸丁酯（TBT）初始浓度、水热反应温度和时间对准一维纳米TiO 2纳米结构长度和DSSC光伏性能的影响。一个功率转换效率为5.81%的基础上制备的TiO 2纳米结构光电极6.7 μ m厚和商业N719染料，具有13.3 mA cm（-2）的短路电流密度，开路电压为810 mV，和填充因子为0.54。
One-dimensional and quasi-one-dimensional semiconductor nanostructures are desirable for dye-sensitized solar cells (DSSCs), since they can provide direct pathways for the rapid collection of photogenerated electrons, which could improve the photovoltaic performance of the device. Quasi-1D single-crystalline anatase TiO2 nanostructures have been successfully prepared on transparent, conductive fluorine-doped tin oxide (FTO) glass with a growth direction of [101] through a facile hydrothermal approach. The influences of the initial titanium n-butoxide (TBT) concentration, hydrothermal reaction temperature, and time on the length of quasi-ID anatase TiO2 nanostructures and on the photovoltaic performance of DSSCs have been investigated in detail. A power conversion efficiency of 5.81% has been obtained based on the prepared TiO2 nanostructure photoelectrode 6.7 mu m thick and commercial N719 dye, with a short-circuit current density of 13.3 mA cm(-2) an open-circuit voltage of 810 mV, and a fill factor of 0.54.