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Published February 24, 1992 | Published
Journal Article Open

Vapor phase synthesis of crystalline nanometer-scale GaAs clusters


We report the synthesis of crystalline nanometer-scale GaAs clusters in the 5-10 nm size regime. The clusters are formed by the homogeneous nucleation of a nonequilibrium vapor created by the explosive vaporization of a bulk GaAs sample in an inert atmosphere. High resolution electron microscopy and diffraction show that the clusters have zincblende crystal structure and are faceted. Optical measurements on the particles are suggestive of quantum confinement effects.

Additional Information

© 1992 American Institute of Physics. Received 9 October 1991; accepted 10 December 1991. We acknowledge support by the NSF Contract CTS-8912328 and the Powell Foundation. P.C.S. acknowledges support by AT&T.

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