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

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

J Am Chem Soc. 2010 Jul 21;132(28):9519-21.

PMID: 20578741

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.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP59863137 Bis[bis(trimethylsilyl)amino]tin(II) Bis[bis(trimethylsilyl)amino]tin(II) 59863-13-7 Price
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