Achiral CdSe quantum dots exhibit optical activity in the visible region upon post-synthetic ligand exchange with D- or L-cysteine.

Academic Article

Abstract

  • Semiconductor cadmium selenide (CdSe) quantum dots (QDs) exhibited mirror-image circular dichroism (CD) spectra in the visible region (350-570 nm) after replacing the trioctylphosphine oxide/oleic acid ligands on achiral nanocrystals with D- and L-cysteines. Chiroptical properties of cysteine-capped CdSe QDs depend on their size and can be fine-tuned by changing the radius of QDs.

    • Authors

  • Tohgha, Urice
  • Varga, Krisztina
  • Balaz, Milan

    • Status

    Publication Date

  • March 4, 2013

    • Has Subject Area

    Published In

    Keywords

  • Cadmium Compounds
  • Circular Dichroism
  • Cysteine
  • Ligands
  • Molecular Structure
  • Oleic Acid
  • Optical Phenomena
  • Organophosphorus Compounds
  • Quantum Dots
  • Selenium Compounds
  • Semiconductors
  • Ultraviolet Rays

    • Digital Object Identifier (doi)

    Pubmed Id

  • 23361413

    • Start Page

  • 1844

    • End Page

  • 1846

    • Volume

  • 49

    • Issue

  • 18