Direct recoil spectroscopy of alkanethiol covered surfaces

LUIS M. RODRÍGUEZ; J. ESTEBAN GAYONE; MARÍA LUZ MARTIARENA; ESTEBAN A. SÁNCHEZ; OSCAR GRIZZI; BÁRBARA BLUM; ROBERTO C. SALVAREZZA; LUAN XI; WOON MING LAU

NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH B - BEAM INTERACTIONS WITH MATERIALS AND ATOMS

Elsevier

Año: 2007 vol. 258 p. 183 - 188

0168-583X

We use time of flight direct recoil spectroscopy to study the adsorption of alkanethiols on three model surfaces: Ag(1 1 1), Au(1 1 1), and GaAs(1 1 0). The low damage imparted to the films allows following the adsorption kinetics in detail, from very low exposures up toformation of dense self-assembled films. Measurements versus sample temperature provide information about desorption processes and the final S content. A substrate roughening effect is detected after annealing the organic films grown on Ag.