High efficiency quantum dot heterojunction solar cell using anatase (001) TiO 2 nanosheets

  • Lioz Etgar*
  • , Wei Zhang
  • , Stefanie Gabriel
  • , Stephen G. Hickey
  • , Md K. Nazeeruddin
  • , Alexander Eychmüller
  • , Bin Liu
  • , Michael Grätzel
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

157 Scopus citations

Abstract

This is the first report of using anatase TiO 2 nanosheets with exposed (001) facets in a high-efficiency PbS quantum dot/TiO 2 heterojunction solar cell. The TiO 2 nanosheets have higher conduction band, and surface energy compared to normal anatase (101) TiO 2 nanoparticles. This PbS QD/TiO 2 heterojunction solar cell produces power conversion efficiency of 4.7% which is one of the highest reported in literature.

Original languageEnglish
Pages (from-to)2202-2206
Number of pages5
JournalAdvanced Materials
Volume24
Issue number16
DOIs
StatePublished - 24 Apr 2012
Externally publishedYes

Keywords

  • anatase TiO
  • nanosheets
  • quantum dots
  • solar cells

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