Citrate-stabilized palladium nanoparticles as catalysts for sub-20 nm epitaxial silicon nanowires

Wittemann, J. V.; Kipke, A.; Pippel, E.; Senz, S.; Vogel, A. T.; de Boor, J.; Kim, D. S.; Hyeon, T.; Schmidt, V.
July 2010
Applied Physics Letters;7/12/2010, Vol. 97 Issue 2, p023105
Academic Journal
Citrate-stabilized palladium nanoparticles with a mean diameter of 13 nm were synthesized in aqueous solution. These particles were utilized as catalysts to grow epitaxial silicon nanowires by chemical vapor deposition at temperatures below 500 °C. The resulting nanowires have a mean diameter of 15 nm. It is found that during the growth process the palladium particles transform into dipalladium silicide.


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