Electron Transport Processes in Dye-Sensitized Solar Cells Made of One-Dimensional Titania Nanoscale Materials

摘要

1. All three kinds of one-dimensional titania nanoscale materials show high light-to-electricity conversion yield around 9%. This suggests strongly that highly crystallized one-dimensional titania materials are essentially important for attainment of high efficient dye-sensitized solar cells. 2. Under steady state conditions, strong distribution of electron density is induced by strong distribution of irradiating light even under open circuit condition. Impedance spectrum under dark is quite different from that of under illumination because of the difference in steady state electron density. It is very important to take into consideration of electron density distribution in the titania electrode and to establish the improved procedure to determine parameters participating electron transport process accurately and simply and also to evaluate the quality of the whole cell.