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Surface Science Perspectives Synthesis and patterning of nanostructures

Summary: Surface Science Perspectives
Synthesis and patterning of nanostructures
of (almost) anything on anything
J.H. Weaver *, V.N. Antonov
Department of Materials Science and Engineering, Department of Physics, and Frederick Seitz Materials Research Laboratory,
University of Illinois at Urbana-Champaign, 1304 West Green Street, Urbana, IL 61801, USA
Received 9 March 2004; accepted for publication 9 March 2004
Nature has very stringent rules that govern nucleation and growth, but growth on a buffer layer makes it possible to cir-
cumvent those rules and fabricate a very wide range of nanostructured materials. By combining buffer layers and laser
induced desorption, it is now possible to produce novel and potentially useful nanoscale patterns.
Keywords: Laser induced thermal desorption (LITD); Growth; Clusters
A necessary and very challenging condition for progress in nanoscience is being able to synthesize the
requisite material. While there has been substantial success for some materials, one would like to develop
protocols to fabricate structures of a wide variety of materials on an equally wide range of supports,
preferably with size selection and the ability to pattern on large areas at low cost. The paper by Kerner and
Asscher in this issue [1] is significant because it shows how at least some of those conditions can be satisfied
in a novel and creative way.
Building on the techniques of surface science, many researchers have focused on physical vapor depo-
sition and the subsequent assembly of 1D wires, 2D islands, and 3D clusters. The problem, of course, is that
Nature provides rather stringent rules that prevent the spontaneous assembly of 3D structures for all but a


Source: Asscher, Micha - Institute of Chemistry, Hebrew University of Jerusalem


Collections: Chemistry