De, Goutam and Rao, C N R (2003) Two-dimensional Au and Au-Cu alloy nanocrystals with orientation in (111) plane embedded in glassy silica films. Journal of Physical Chemistry B, 107 (49). pp. 13597-13600. ISSN 1520-6106

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Triangular Au and disk-shaped Au-Cu alloy nanocrystals have been generated in thin SiO(2) film matrixes, by sol-gel spin-coating followed by annealing at 800 degreesC in 10%H(2)-90%Ar. Transmission electron microscope images confirm the shapes of the embedded nanocrystals. X-ray diffraction patterns reveal that the Au and Au-Cu nanocrystals have a (111) orientation. The disk-shaped alloy nanocrystals exhibit surface plasmon absorption at wavelengths intermediate between those of Au and Cu.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Subhra Lahiri
Date Deposited: 21 Feb 2012 09:54
Last Modified: 21 Feb 2012 09:54

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