Quenching of the dissociative electron attachment resonances of O2 physisorbed on amorphous ice |
| |
Authors: | MA Huels L Parenteau L Sanche |
| |
Institution: | Groupe du Conseil de Recherches Médicales en Sciences des Radiations, Faculté de Médecine, Université de Sherbrooke, Sherbrooke, Quebec, Canada J1H 5N4 |
| |
Abstract: | Measurements of electron stimulated desorption (ESD) yields of O?, at incident electron energies below 20 eV, from 0.15 monolayers (ML) of O2 physisorbed at 20 K on a variety of molecular solids have been performed. It is observed that for O2 condensed on 4 ML of H2O, the O? signal from dissociative electron attachment (DEA) to O2 is entirely absent. We attribute this to a complete quenching of the dissociative 2Πu, 2Σ+g, and 2Σ+u, resonances of O?2 by the adjacent water molecules. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|