Conjugated oligothiophene-dendron-capped CdSe nanoparticles: Synthesis and energy transfer

Jason Locklin, Derek Patton, Suxiang Deng, Akira Baba, Mitchel Millan, Rigoberto C. Advincula

Research output: Contribution to journalArticlepeer-review

91 Citations (Scopus)

Abstract

In this study, we demonstrate the synthesis of branched oligothiophene dendrons that act as electroactive surfactants for the capping of CdSe nanocrystals through a ligand exchange process. The number of dendrons per nanocrystal and the nature of surface coordination interactions were studied in detail using UV-vis, FT-IR, AFM, and photoluminescence spectroscopies. These dendron/nanocrystal complexes are very soluble in nonpolar solvents and exhibit photoinduced charge-transfer interactions between the two species. One-layer photovoltaic cells were fabricated that showed initial power conversion efficiencies of 0.29%.

Original languageEnglish
Pages (from-to)5187-5193
Number of pages7
JournalChemistry of Materials
Volume16
Issue number24
Publication statusPublished - 2004 Nov 30
Externally publishedYes

ASJC Scopus subject areas

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

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