4.7 Article

Driving oxygen coordinated ligand exchange at nanocrystal surfaces using trialkylsilylated chalcogenides

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 1, Pages 556-558

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc02220a

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Funding

  1. Office of Science, Office of Basic Energy Sciences of the US Department of Energy [DE-AC02-05CH11231]
  2. IBM
  3. Stanford Non-Volatile Memory Technology Research Initiative (NMTRI)
  4. Ernest Orlando Lawrence Postdoctoral Fellowship
  5. Office of Science, Department of Energy

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A general, efficient method is demonstrated for exchanging native oxyanionic ligands on inorganic nanocrystals with functional trimethylsilylated (TMS) chalcogenido ligands. In addition, newly synthesized TMS mixed chalcogenides leverage preferential reactivity of TMS-S bonds over TMS-O bonds, enabling efficient transfer of luminescent nanocrystals into aqueous media with retention of their optical properties.

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