Design and development of novel linker for PbS quantum dots/TiO2 mesoscopic solar cell

Lioz Etgar*, Jinhyung Park, Claudia Barolo, Md K. Nazeeruddin, Guido Viscardi, Michael Graetzel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

A novel bifunctional linker molecule, bis(4-mercaptophenyl)phosphinic acid, is designed to be used in a QDs solar cells. The linker anchors to TiO 2 mesoporous film through the phosphinic acid functional group and to the PbS QDs through the two thiol groups. The way of attachment of this new linker molecule in a photovoltaic PbS QDs/TiO2 mesoporous device was studied by FTIR measurements. The photovoltaic performance of this new linker in a heterojunction PbS QDs solar cell show high Voc relative to QDs based solar cells, which will allow to receive high power conversion efficiency using this novel designed linker. This novel bifunctional linker molecule should pave the way for enhancing binding strength, and efficiency of QDs solar cells compared to the state-of-the-art linkers.

Original languageAmerican English
Pages (from-to)3264-3267
Number of pages4
JournalACS applied materials & interfaces
Volume3
Issue number9
DOIs
StatePublished - 28 Sep 2011
Externally publishedYes

Keywords

  • PbS
  • bifunctional molecular linker
  • heterojunction solar cells
  • mesoporous TiO
  • phosphinic acid
  • quantum dots

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