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Lecture Fabien Silly

Rooster

WanneerWaar
20 december 2006 FWN-Building 5118.-152, Nijenborgh 4, 9747 AG, Groningen
Speaker:Dr. Fabien Silly
Affiliation:Department of Materials, Univesity of Oxford, UK
Title:Substrate-mediated nanostructures investigated by STM
Date:Wed Dec 20, 2006
Start:13.00
Location:FWN-Building 5118.-152
Host:P. Rudolf
Telephone:+31 50 363 4736

Abstract

The substrate-mediated ordering and assembly of adatoms and molecules on atomically well-defined surfaces is a promising method of forming new nano-architechtures with controlled morphology and dimensions. We used scanning tunneling microscopy (STM) to investigate how the electronic properties of a noble metal can be used to organize adatoms. In the case of Ce adatoms on Ag(111), STM shows the interaction of surface state electrons with Ce adatoms to form a Ce superlattice at low temperatures. Nanostructures can also be created by taking advantage of multiple reconstructions of the SrTiO3(001) surface. These surface reconstructions can be used to order fullerenes into grid arrays or into close-packed networks and can also be used to control the growth of nanocrystals into hut, pyramid and hexagon shaped crystals.
Laatst gewijzigd:22 oktober 2012 14:31