Recent progress in electrospinning TiO2 nanostructured photo-anode of dye-sensitized solar cells
Tingting Wan, Seeram Ramakrishna, Yong Liu*
Abstract：The key to improving the performance of dye-sensitized solar cells is the photo-anode that has much dye adsorption and short optoelectronic transmission path. Electrospun TiO2 films in photo-anode have high specific surface area and meet the demand exactly. The article summarizes these efforts in TiO2 photo-anode improvement, including various morphology, different onedimensional and two-dimensional composite structure, and varied element doped TiO2 photo-anode. Besides, the review makes comparison with these different TiO2 photo-anodes in photoelectric properties. The conclusions provide a clear guidance in design of morphology, structure, and doping, which is helpful for researcher to improve the performance of the anode and increase the photoelectric conversion efficiency especially those prepared using electrospinning.
Figure 1. Schematic of DSSC device, mechanism and preparation of photo-anode film using electrospinning. (a) Schematic of DSSC device; (b) principle of DSSC; (c) process of fabricating photo-anode film by electrospinning. TCO, transparent conducting oxide; FTO, fluorine-doped transparent oxide; ITO, indium doped transparent oxide.