A novel desorption mechanism of (AgnIn?1)+ cluster ions |
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Authors: | T Jerger D Kreisle E Recknagel |
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Institution: | 1. Fakult?t für Physik, Universit?t Konstanz, Postfach 5560, 7750, Konstanz, Germany
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Abstract: | Silver iodide clusters have been generated by inert gas condensation technique, ionized via electron impact, and mass analyzed in a reflectron equipped time-of-flight mass spectrometer. The mass spectra are dominated by cluster ions of the composition (AgnIn?1)+. Additional kinetic energy analysis is applied to detect metastable decay of the cluster ions for n up to 30. In contrast to alkali halides, where halogen and monomer desorption had been observed, the main decay channel of silver iodide cluster ions is the loss of a neutral trimer Ag3I3. |
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