Recoil spectroscopy of alkanethiol covered surfaces

L. RODRÍGUEZ, J.E.GAYONE, MARTIARENA, E.A. SÁNCHEZ, O. GRIZZI, B. BLUM, R.C. SALVAREZZA, AND W.M. LAU

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

ELSEVIER SCIENCE BV

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(111), Au(111), and GaAs(110). The low damage imparted to the films allows following the adsorption kinetics in detail, from very low exposures up to formation 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.