Quantum Simulations Group Home Page Surfaces and Nanostructures


Semiconductor nanostructures hold great promise for novel materials with unique properties. Some applications of interest to our group are:
Biological "Nanotags" Self-Assembly


Change the surface structure to add biologically useful molecules.



Use the known optical properties of the nanostructure to detect specific molecules.

 To generate electron transport and construct devices we need to assemble multiple nanoparticles into close packed arrays.



  • How does surfactant structure control self-assembly?
  • What are the optical properties of these arrays?
Computer simulations of surfaces
From left to right: computer experiment breaking a sample of a-SiC (G. Galli, F. Gygi and A. Catellani, Phys. Rev. Lett. 1999); modeling preparation conditions effects on the structure of amorphous carbon surfaces (R. Haerle, G. Galli and A. Baldereschi, Appl. Phys. Lett.1999); nitrogen-coated silicon carbide surfaces (G. Galli, A. Catellani and F. Gygi, Phys. Rev. Lett. 1999) and carbon lines on SiC surfaces (A. Catellani, G. Galli and P. Rigolli, Phys. Rev. B-RC 2000).



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Date last modified: 10/09/00
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