SnSe Nanocrystals: Synthesis, Structure, Optical Properties, and Surface Chemistry

William J. Baumgardner, Joshua J. Choi, Yee-Fun Lim, Tobias Hanrath

Research output: Contribution to journalArticlepeer-review

234 Scopus citations

Abstract

The colloidal synthesis of SnSe nanoparticles is accomplished through the injection of bis[bis(trimethylsilyl)amino]tin(II) into hot trioctylphosphine: selenium in the presence of oleylamine. Through the manipulation of reaction temperature particles are grown with the average diameter reliably tuned to 4-10 nm. Quantum confinement is examined by establishing a relationship between particle size and band gap while the in depth growth dynamics are illuminated through UV-vis-NIR spectroscopy. Surface chemistry effects are explored, including the demonstration of useful ligand exchanges and the development of routes toward anisotropic particle growth. Finally, transient current-voltage properties of SnSe nanocrystal films in the dark and light are examined. © 2010 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)9519-9521
Number of pages3
JournalJournal of the American Chemical Society
Volume132
Issue number28
DOIs
StatePublished - Jul 21 2010
Externally publishedYes

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