Size controlled synthesis of silicon nanocrystals within inverse micelles

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Date
2013-03
Authors
Linehan, Keith
Doyle, Hugh
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Publisher
Cambridge University Press
Published Version
10.1557/opl.2013.621
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Abstract
Alkyl-terminated Si nanocrystals (NCs) are synthesized at room temperature by hydride reduction of SiCl4 within inverse micelles. Highly monodisperse Si NCs (2 – 6 nm) are produced by variation of the cationic quaternary ammonium salts used to form the inverse micelles. Transmission electron microscopy imaging confirms the NCs are highly crystalline, while FTIR spectra confirm that the NCs are passivated by covalent attachment of alkanes, with minimal surface oxidation. The photoluminescence intensity of the Si NCs exhibits an inverse relationship with the mean NC diameter, with a quantum yield of 12 % recorded for 2 nm NCs.
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Keywords
Si , Nanostructure , Chemical synthesis
Citation
Linehan, K., Doyle, H. (2013) "Size controlled synthesis of silicon nanocrystals within inverse micelles", MRS Online Proceedings Library Archive, 1546, mrss13-1546-l06-48. doi:10.1557/opl.2013.621
Link to publisher’s version
http://journals.cambridge.org/article_S1946427413006210
URI
https://hdl.handle.net/10468/2517
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Tyndall National Institute - Journal Articles
Copyright
© 2013, Materials Research Society.