Affiliation:
1. Department of Physics and Center for Nanophysics and Advanced Materials, University of Maryland, College Park, MD 20742, USA
Abstract
Perfect Mismatch
Heteroepitaxy, or the overgrowth of one crystalline material onto a second crystalline material, is a key fabrication method for making thin films and nanoparticles. But if the lattice mismatch between the two materials is too large or messy, fractured interfaces result.
Zhang
et al.
(p.
1634
) describe a synthesis strategy to obtain spherical nanoparticles with a core-shell architecture that does not depend on heteroepitaxy. Silver was deposited and converted to various semiconductors through a series of chemical transformations to yield structurally perfect single-crystal semiconductor shells on a gold core, despite mismatches approaching 50%.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
512 articles.
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