In building up molecular circuits and molecule-based devices, it is central to determine how molecules interact with the surface. Here, we explore the behaviour of a bifunctional molecule, i.e. phenol, on Si(111)7 × 7 by high resolution photoemission, comparatively in the C1s, Si2p, VB and O1s energy ranges. We found out that the adsorption is more complex than originally hypothesized with a mixture of dissociative and molecular adsorbates at low exposures, and a preeminence of dissociative adsorbates at higher exposure. The co-existence of these states is different from the Si(100) surface, where the molecular states are readily converted into dissociative ones.
Flammini, R., Cecchetti, D., Tagliatesta, P., Carbone, M. (2020). Multiple options for phenol on Si(111)7x7 revealed by high resolution photoemission. SURFACE SCIENCE, 692 [10.1016/j.susc.2019.121510].
Multiple options for phenol on Si(111)7x7 revealed by high resolution photoemission
Pietro Tagliatesta;Marilena Carbone
Supervision
2020-01-01
Abstract
In building up molecular circuits and molecule-based devices, it is central to determine how molecules interact with the surface. Here, we explore the behaviour of a bifunctional molecule, i.e. phenol, on Si(111)7 × 7 by high resolution photoemission, comparatively in the C1s, Si2p, VB and O1s energy ranges. We found out that the adsorption is more complex than originally hypothesized with a mixture of dissociative and molecular adsorbates at low exposures, and a preeminence of dissociative adsorbates at higher exposure. The co-existence of these states is different from the Si(100) surface, where the molecular states are readily converted into dissociative ones.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
