From Tables 1 and 3, we
can see that the low Jsc of PZnACOOH sensitized TiO2 cell compared
to that of the PZnABIAACOOH Sensitized cells mainly results from
the low surface density of TiO2/PZnACOOH. It seems that the higher
electron collection efficiency of PZnABIAACOOH determined by the
moderate surface density of TiO2/Dyes is suitable for preparing
high efficient DSSCs.