%0 Journal Article
%T Room temperature electronic template effect of pre-structured SmSi(111)-8x2 interface yielding self-aligned organic molecules
%A Younes Makoudi
%A Eric Duverger
%A Madjid Arab
%A Frederic Cherioux
%A Franscisco Ample
%A Gwenael Rapenne
%A Xavier Bouju
%A Frank Palmino
%J Physics
%D 2008
%I arXiv
%X This work describes an innovative concept for the development of organized molecular systems thanks to the template effect of the pre-structured semi-conductive SmSi(111) interface. This substrate was selected because Sm deposition in the submonolayer range leads to a 8x2-reconstruction, which is a well-defined one-dimensional semi-metallic structure. Adsorption of aromatic molecules (1,4-di-(9-ethynyltriptycenyl)-benzene) on SmSi(111)-8x2 and Si(111)-7x7 interfaces has been investigated by scanning tunneling microscopy (STM) at room temperature. Density functional theory (DFT) and semi-empirical (ASED+) calculations have been performed to define the nature of the molecular adsorption sites of the target molecule on SmSi as well as their self-alignment on this interface. Experimental data and theoretical results are in good agreement.
%U http://arxiv.org/abs/0805.3281v1