Desorption of water cluster ions from the surface of solid rare gases

• Veröffentlicht in: Физика низких температур
• Datum: 2006
• Hauptverfasser: Tachibana, T., Miura, T., Arakawa, I.
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2006
• Schlagworte: Clusters
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/120893
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Desorption of water cluster ions from the surface
 of solid rare gases / T. Tachibana, T. Miura, I. Arakawa // Физика низких температур. — 2006. — Т. 32, № 11. — С. 1434–1440. — Бібліогр.: 24 назв. — англ.

Electron or photon irradiation on H₂O adsorbed on the surface of rare gas solids induces the
 desorption of protonated water clusters, (H₂O)nH⁺. The yield and the size n distribution of cluster
 ions depend on the coverage, the deposition temperature of water and the thickness of a rare gas
 film. These results indicate that the (H₂O)nH⁺ ions are originated from the isolated water cluster
 and most important factor determining the size n distribution of desorbed (H₂O)nH⁺ is the sizes of
 water islands on rare gas solid. The measurement of kinetic energy distributions indicated that the
 desorbing energy of clusters depend on the rare gas species of the substrates and the cluster size. It
 is suggested that the (H₂O)nH⁺ desorption is due to Coulomb repulsion between the ionic water
 cluster and the rare gas ion.