Electrodeposition and low-temperature post-treatment of nanocrystalline SnO 2 films for flexible dye-sensitized solar cells

Abstract

SnO 2 porous films were electrodeposited on Ti substrate using pulse-potential technique. These deposited films were dealt with different post-treatments. The effects of the post treatments were investigated through X-ray diffraction, FE-SEM, and Raman spectra. These investigations showed that crystal nanoporous SnO 2 films were obtained through low-temperature post-treatment process. The photoelectric conversion efficiency of the SnO 2 film treated with both the water vapour treatment and ultraviolet illumination was improved to be 0.35 which was comparable with the conversion efficiency of the film sintered at 550°C. © 2011 Shengjun Li et al.