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Mechanochemical Synthesis of Blue Luminescent Alkyl/Alkenyl‐Passivated Silicon Nanoparticles
Author(s) -
Heintz A. S.,
Fink M. J.,
Mitchell B. S.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200602752
Subject(s) - materials science , surface modification , luminescence , silicon , nanoparticle , ball mill , mechanochemistry , alkyl , covalent bond , chemical engineering , nanotechnology , alkyne , alkene , photochemistry , organic chemistry , optoelectronics , composite material , catalysis , chemistry , engineering
A mechanochemical method for the simultaneous one‐step production and functionalization of silicon nanoparticles is presented. Fresh surface created through mechanical attrition of the silicon during high energy ball milling (HEBM) allows for direct reaction between the silicon and the reactive alkene or alkyne media, resulting in a covalent linkage. The resulting nanoparticles exhibit strong blue luminescence, indicative of small nanoparticle sizes and a functionalized surface.