Aluminum-cesium bimetallic clusters (AlnCsm) were produced by the combination of laser vaporization and a high-temperature pulsed nozzle. To investigate their electronic structures, ionization energies (EiS) of the AlnCsm clusters were measured using a tunable ultraviolet laser combined with a time-of-flight mass spectrometer. In general, their Eis decrease by 0.4-1.0 eV with increasing number of cesium atoms, but discontinuous changes in Eis can be also observed, which are attributed to electronic shell structures; completeness of electron shell by the addition of a Cs atom induces high Ei, and an excess electron from the Cs atom results in large Ei, decrement. The electronic stability of the AlnCsmclusters can be also examined by their abundance.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry