Synthesis of CdSe-TiO 2 nanocomposites and their applications to TiO 2 sensitized solar cells

Jin Young Kim, Sung Bum Choi, Jun Hong Noh, Sung Hunyoon, Sangwook Lee, Tae Hoon Noh, Arthur J. Frank, Kug Sun Hong

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

CdSe-TiO 2 nanocomposites were synthesized via aminolysis of Ti-oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO 2 solar cells was investigated. The formation of CdSe-TiO 2 nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe-TiO 2 nanocomposites revealed photoinduced charge separation at the CdSe- TiO 2 interface of the composite. The photocurrent-voltage properties of CdSe-TiO 2-sensitized TiO 2 particle films compared favorably with those of CdSe-sensitized TiO 2 films. Evidence was also found indicating that the TiO 2 component of the composite protects CdSe against degradation during film annealing.

Original languageEnglish
Pages (from-to)5348-5351
Number of pages4
JournalLangmuir
Volume25
Issue number9
DOIs
Publication statusPublished - 2009 May 5
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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