Title: In situ observation of particle-induced desorption from a self-assembled monolayer by laser-ionization mass spectrometry
Authors: Vandeweert, Erno ×
Bastiaansen, Jeroen
Vervaecke, Frederik
Lievens, Peter
Silverans, Roger
Cyganik, P
Postawa, Z
Rong, HT
Buck, M #
Issue Date: Feb-2003
Publisher: Amer inst physics
Series Title: Applied Physics Letters vol:82 issue:7 pages:1114-1116
Abstract: We studied particle-stimulated desorption processes of highly ordered, self-assembled monolayers of biphenyl-based thiols covalently bound to Au/mica substrates with laser postionization in combination with mass spectrometry. Direct evidence was obtained that large molecular fragments are removed from these monolayers during impact of electrons with a kinetic energy of 1 keV. The damage that accumulates in the self-assembled monolayer with increasing electron dose was measured using ion-beam, sputter-initiated laser probing. Our results show that electron-induced desorption competes with the gradual erosion of the monolayer by the formation of a carbonaceous residual layer on the substrate. (C) 2003 American Institute of Physics.
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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