CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishThe adsorption of a bi-functional organic molecule like phenol on Si(100)2 x 1 has been investigated by synchrotron radiation-induced photoemission in the valence band, Si 2p, C 1s and O 1s core-level regions. Experiments have been carried out as a function of phenol exposure at room temperature. Phenol adsorbs on Si(100)2 x 1 through a dissociative mechanism at room temperature, interacting with the surface by its alcoholic functionality. The line-shape analysis of Si 2p spectra indicates the formation of Si-O and Si-H bonds, as a consequence of the cleavage of the C6H5O-H bond and the binding of the fragments (C6H5O-group and H atom) to the Si(100)2 x 1 surface dimers. The progressive quenching of the silicon surface dimer atoms and the corresponding intensity increase of the Si-OC6H5 and Si-H components have been observed as a function of phenol exposure. The presence of the phenoxide (C6H5O-) group on the silicon surface has been evidenced also by the C 1s spectrum, consisting of two components in a 1:5 intensity ratio, energy splitted by 1.5 eV, which can be assigned to carbon atom linked to oxygen (C-O group) and carbon atoms of the aromatic ring, respectively. (c) 2005 Elsevier B.V. All rights reserved.
| Tipologia: | Articolo su rivista |
| Citazione: | Casaletto, M P, Carbone, M., Piancastelli, M.N., Horn, K., Weiss, K., et al. (2005). A high resolution photoemission study of phenol adsorption on Si(100)2 x 1. SURFACE SCIENCE, 582(2009/03/01), 42-48. |
| IF: | Con Impact Factor ISI |
| Lingua: | English |
| Settore Scientifico Disciplinare: | Settore CHIM/03 - Chimica Generale e Inorganica Settore CHIM/02 - Chimica Fisica |
| Revisione (peer review): | Sì, ma tipo non specificato |
| Tipo: | Articolo |
| Rilevanza: | Rilevanza internazionale |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.susc.2005.03.004 |
| Stato di pubblicazione: | Pubblicato |
| Data di pubblicazione: | 2005 |
| Titolo: | A high resolution photoemission study of phenol adsorption on Si(100)2 x 1 |
| Autori: | |
| Autori: | Casaletto; M P; Carbone, M; Piancastelli, M N; Horn, K; Weiss, K; Zanoni, R |
| Appare nelle tipologie: | 01 - Articolo su rivista |
File in questo prodotto:
http://hdl.handle.net/2108/26971
Copyright © 2020