Abstract: In order to explore the new method for preparing the TiO 2 thin film, this experiment use liquid phase deposition method to fabricate thin film on the condition of constant temperature and variable temperature .The FTO conductive glass and flexible PET-ITO were selected to be compared .XRD results show that the products are anatase phase titanium dioxide , the conditionof 80 ℃ in favour of better crystallinity .SEM results show the porous structure of TiO 2 film layer .Theefficiency prepared on the condition of variable temperature is the highest , and the sample prepared in 60 ℃ has higher efficiency than it prepared in 80℃.The efficiency of cells prepared at gradient temperature based on FTO reached 5.71;, and on the same conditions the efficiency of cells based on PET-ITO is 4.07;.

Key words: In order to explore the new method for preparing the TiO 2 thin film, this experiment use liquid phase deposition method to fabricate thin film on the condition of constant temperature and variable temperature .The FTO conductive glass and flexible PET-ITO were selected to be compared .XRD results show that the products are anatase phase titanium dioxide , the conditionof 80 ℃ in favour of better crystallinity .SEM results show the porous structure of TiO 2 film layer .Theefficiency prepared on the condition of variable temperature is the highest , and the sample prepared in 60 ℃ has higher efficiency than it prepared in 80℃.The efficiency of cells prepared at gradient temperature based on FTO reached 5.71;, and on the same conditions the efficiency of cells based on PET-ITO is 4.07;.