Condensed Matter Physics Seminar
Shadowing Growth of Nanostructures and Their Properties
Rensselaer Polytechnic Institute , Troy, NY
Thu. March 11, 2004 10:30 AM Stirling 412B|
Nanostructrures made by glancing angle deposition by Robbie et al.
 in the mid 90's has generated considerable interest. This
technique uses the physical shadowing effect and can create
facinating three-dimensional structures without lithography. At
Rensselaer we are producing nanostructures on both flat surfaces and
patterned substrates using glancing angle deposition . In this
talk I will discuss fundamental mechanisms in the formation of
nanostructures by shadowing. I will also present atomic force
microscopy measurements of mechanical properties (elastic response)
of Si nanosprings, electromechanical properties (compression) of
metallic coated nanosprings, and the scanning tunneling microscopy
measurement of field emission properties of metallic nanorods. Our
measured mechanical and electromechanical data will be compared with
that of finite element modeling. Our results suggest that many new
opportunities in nanoscale applications are possible.|
Work supported by NSF.
 Robbie et al., Chiral sculptured thin films, Nature 384, 616 (1996).
 Y.-P. Zhao et al., Nano
letters, 2, 351 (2002).
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