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Published May 27, 1996 | Published
Journal Article Open

Size classification of silicon nanocrystals


We report on the synthesis of size-classified silicon nanocrystals by differential mobility classification of a polydisperse ultrafine silicon aerosol. Using the described technique, the average nanocrystal size can be tuned by simply adjusting an electric field. Samples of nonagglomerated silicon nanocrystals have been obtained and size control has been achieved within 15%–20% in the 2–10 nm size regime.

Additional Information

© 1996 American Institute of Physics. (Received 9 February 1996; accepted 22 March 1996) This work was supported by the U.S. Department of Energy (Grant DE-FG 89ER45395) and by the Office of Naval Research (Grant N00014-90-J-1854). R. P. C. acknowledges support from CNPq, Brasília, Brazil.

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