Highly efficient CdSe-sensitized TiO2 photoelectrode for quantum-dot-sensitized solar cell applications

Yuh Lang Lee, Bau Ming Huang, Huei Ting Chien

Research output: Contribution to journalArticlepeer-review

267 Citations (Scopus)

Abstract

A study was conducted to demonstrate highly efficient CdSe-sensitized titanium dioxide (TiO2) photoelectrode for quantum-dot (QD)-sensitized solar cell applications. The study demonstrated the assembly of CdSe into nanocrystalline TiO2 films, using a technique that coupled self-assembled monolayer (SAM) and chemical bath deposition (CBD). Colloidal CdS-QDs were first self-assembled on TiO2 surface, using a bifunctional linker, 3-mercaptopropyl trimethyoxysilane (MPTMS). It was demonstrated that the pre-assembled CdS-QD layer acts as a seed layer in the CBD process, inducing the nucleation and growth of CdSe. Mesoscopic TiO2 films were prepared by spin coating of TiO2 paste on indium-doped tin oxide (ITO) substrates, followed by sintering at 450°C for 30 minutes.

Original languageEnglish
Pages (from-to)6903-6905
Number of pages3
JournalChemistry of Materials
Volume20
Issue number22
DOIs
Publication statusPublished - 2008 Nov 25

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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