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

153 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 languageAmerican English
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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