SnO2 nanowires decorated with forsythia-like TiO2 for photoenergy conversion

Ik Jae Park, Sangbaek Park, Dong Hoe Kim, Heesu Jeong, Sangwook Lee

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We report forsythia-like TiO2-decorated SnO2 nanowires on fluorine-doped SnO2 electrode as a photoelectrode of dye-sensitized solar cells. When SnO2 nanowires grown via vapor-liquid-solid reaction were soaked in TiCl4 solution, leaf-shaped rutile TiO2 was grown onto the surface of the nanowires. The TiO2 decoration increases the short circuit current (Jsc), open circuit voltage (Voc) and fill factor (FF) of dye-sensitized solar cells. Further, electron lifetime increased by employing an atomic-layer-deposited TiO2 nanoshell between the TiO2 leaves and the SnO2 nanowire, due to preventing charge recombination at the nanowire/electrolyte interface.

Original languageEnglish
Pages (from-to)48-51
Number of pages4
JournalMaterials Letters
Volume202
DOIs
Publication statusPublished - 2017 Sep 1
Externally publishedYes

Keywords

  • Dye-sensitized solar cells
  • Lifetime
  • Nanowire
  • SnO
  • TiO decoration

ASJC Scopus subject areas

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

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