Au Nanoparticles as interfacial layer for CdS quantum Dot-sensitized solar cells

  • Guang Zhu
  • , Fengfang Su
  • , Tian Lv
  • , Likun Pan*
  • , Zhuo Sun
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

Quantum dot-sensitized solar cells based on fluorine-doped tin oxide (FTO)/Au/TiO 2/CdS photoanode and polysulfide electrolyte are fabricated. Au nanoparticles (NPs) as interfacial layer between FTO and TiO 2 layer are dip-coated on FTO surface. The structure, morphology and impedance of the photoanodes and the photovoltaic performance of the cells are investigated. A power conversion efficiency of 1.62% has been obtained for FTO/Au/TiO 2/CdS cell, which is about 88% higher than that for FTO/TiO 2/CdS cell (0.86%). The easier transport of excited electron and the suppression of charge recombination in the photoanode due to the introduction of Au NP layer should be responsible for the performance enhancement of the cell.

Original languageEnglish
Pages (from-to)1749-1754
Number of pages6
JournalNanoscale Research Letters
Volume5
Issue number11
DOIs
StatePublished - Nov 2010
Externally publishedYes

Keywords

  • Gold nanoparticles
  • Interfacial layer
  • Quantum dot-sensitized solar cell

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