DNA-like dye-sensitized solar cells based on TiO2nanowire-covered nanotube bilayer film electrodes

Yuanhao Wang, Hongxing Yang, Hongmei Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

37 Citations (Scopus)


This paper reports a two-step formation of a TiO2nanowire-covered nanotube bilayer film technique and its application in DNA-like dye-sensitized solar cells. The bilayer film was prepared by the electrochemical anodization first and then the hydrothermal method. From the reflectivity spectrum and scanning electron microscopy it is observed that the nanowire layer on the top cannot only decrease the reflectivity of the film, but also play a role to modify the film cracks. Compared with the dye-sensitized solar cells based on a single layer electrode, the cell with the bilayer film showed higher photovoltaic parameters and a lower dark current, which is due to its higher light harvesting efficiency and lower charge recombination between the electrolyte and the substrates.
Original languageEnglish
Pages (from-to)164-166
Number of pages3
JournalMaterials Letters
Issue number2
Publication statusPublished - 31 Jan 2010


  • Multilayer structure
  • Solar energy materials
  • TiO nanotubes 2
  • TiO nanowires 2

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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