title: Properties of dye-sensitized solar cells with TiO2 passivating layers prepared by electron-beam evaporation.
abstract: The aim of this work is to prevent back transfer of electrons due to direct contact between the electrolyte and the FTO glass substrate using a TiO2 passivating layer. The TiO2 passivating layer was deposited on FTO glass by e-beam evaporation. The TiO2 film was prepared with different deposition rates. The specific surface area was reduced with increasing deposition rate. The nanoporous TiO2 upper layer was coated by screen-printing on the TiO2 passivating layer prepared by e-beam evaporation. The optical transmittance and absorbance of the TiO2 films depend on the morphology of the TiO2 passivating layer. The dye-sensitized solar cells influenced the surface morphology of the TiO2 passivating layer. The dye-sensitized solar cell using the TiO2 passivating layer recorded a maximum conversion efficiency of 4.93% due to effective prevention of the electron recombination to the electrolyte.
authors.affiliation: Department of Electrical Engineering, Kyungwon University, San 65 Bokjeong-Dong, Sujeong-Gu, Seongnam, Gyeonggi-Do 461-701, Korea.
authors.forename: Young Sam
authors.initials: YS
authors.lastname: Jin
authors.forename: Hyung Wook
authors.initials: HW
authors.lastname: Choi
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D011211:Electric Power Supplies; D004583:Electrons; D004595:Electroplating / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects; D010316:Particle Size; D012993:Solar Energy; D014025:Titanium / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D004396:Coloring Agents; C009495:titanium dioxide; D014025:Titanium