Nanogallery
Nanogallery
TODAY APRIL 20, 2019

Electron beam sculpting of nanostructures

The figure shows an example of a suspended structure
The figure shows an example of a suspended structure "sculptured" by a focused electron beam. The experiment is done using a Scanning Electron Microscope (SEM).
The figure shows an example of a suspended structure "sculptured" by a focused electron beam. The experiment is done using a Scanning Electron Microscope (SEM). A loop is fabricated inside a trench etched deep into the SiN film. The total width of the trench is about 100 nm. The loop is thus smaller than this.


1. J. Waddell, REU project report
2. A. Bezryadin, C Dekker. "Nanofabrication of electrodes with sub-5 nm spacing for transport experiments on single molecules and metal clusters." Journal of Vacuum Science Technology B. 15, 793 (1997).

Related Links:
  • REU project report
  • The cylindrical superstructures are composed of silver nanoparticles with V-shaped amphiphilic arms. The short rod-like and spherical assemblies are made of gold nanoparticles with the same V-shaped amphiphilic arms.  The self-assembly occurs upon slow addition of water to solution of nanoparticles in organic solvent called tetrahydrofuran. The resulting mixture is then dialyzed against pure water in order to remove organic solvent and obtain a pure aqueous solution of the superstructures (they remain in water without any precipitation, just like micelles).
    Nanowerk Nanotechnology Portal
    http://www.nanowerk.com

    Nanohedron
    http://www.nanohedron.com

    Biomolecules
    http://perso.curie.fr/Simon.Sc..


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