Nano-crystalline TiO2 coated on FTO, Ti and stainless
steel substrate were investigated. The sheet resistance of
metal substrate seems to be constant after annealing at
500 C but the FTO have a low ability to withstand heat
during the annealing processes, leading to an increase in
sheet resistance. The efficiency of DSC using Ti substrate
was higher than that of the DSCs using stainless steel and
FTO. To retain the decrease in cell performance, the DSCs
based on FTO need the metal track for collecting electrons.
A decrease in cell performance of large DSCs could be due
to the higher sheet resistance of the FTO. The DSCs based
Ti substrate did not need the metal track for transferring
the electron. The efficiency of DSC based on Ti substrate
was higher than that of DSC based on FTO substrate with
metal track by 28%. The efficiency of DSC using Ti
substrate attained 3.2% with a Jsc 6:94mAcm2, Voc
0.75 V, and FF 0.610. Moreover, the rate of decrease in FF
and efficiency of DSC using Ti substrate was lower than
that of the FTO. This indicated that Ti sheet is a possible
substrate for supporting TiO2 to produce the large DSCs