Properties of Dye-Sensitized Solar Cells with TiO2 Passivating Layers Prepared by Electron-Beam Evaporation
- Authors
- Jin, Young Sam; Choi, Hyung Wook
- Issue Date
- Jan-2012
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- TiO2 Passivating Layer; E-beam Evaporation; DSSCs
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.1, pp.662 - 667
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 12
- Number
- 1
- Start Page
- 662
- End Page
- 667
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/16668
- DOI
- 10.1166/jnn.2012.5408
- ISSN
- 1533-4880
- 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.
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