Effect of Hexylthiophene and Hexyloxy Substituents on Triphenylamine-based DSSCs after TiCl4 Treatment

摘要

Three organic dyes were synthesized and characterized for application in dye-sensitized solar cells. It turned out that the performances of dyes Q1 and Q2 significantly increased when the TiO2 anode film was treated by TiCl4. However, the efficiency of dye Q3 containing two hexylthiophene groups was almost unchanged after the anode film was treated. This should be originated from their structure differences.