Open Access Nano Express

Synthesis of SnS nanocrystals by the solvothermal decomposition of a single source precursor

Dmitry S Koktysh1,2*, James R McBride1 and Sandra J Rosenthal1,2

Author Affiliations

1 Department of Chemistry, Vanderbilt University, Station B 351822, Nashville, TN, 37235, USA

2 Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt University, Station B 350106, Nashville, TN, 37235, USA

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Nanoscale Research Letters 2007, 2:144-148 doi:10.1007/s11671-007-9045-9


The electronic version of this article is the complete one and can be found online at:


Received:29 November 2006
Accepted:5 February 2007
Published:24 February 2007

© 2007 to the authors

Abstract

SnS nanocrystals (NCs) were synthesized from bis(diethyldithiocarbamato) tin(II) in oleylamine at elevated temperature. High-resolution transmission electron microscopy (HRTEM) investigation and X-ray diffraction (XRD) analysis showed that the synthesized SnS particles are monocrystalline with an orthorhombic structure. The shape and size tunability of SnS NCs can be achieved by controlling the reaction temperature and time, and the nature of the stabilizing ligands. The comparison between experimental optical band gap values shows evidence of quantum confinement of SnS NCs. Prepared SnS NCs display strong absorption in the visible and near-infrared (NIR) spectral regions making them promising candidates for solar cell energy conversion.

Keywords:
Tin sulfide; Collodal nanocrystals; Chemical synthesis; Optical properties; Solar energy conversion

Nano Express

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Acknowledgments

This work was supported by the Vanderbilt Institute of Nanoscale Science and Engineering and DOE grant # DE-FG02-02ER45957.

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