Electronic excitations induced by the impact of coinage metal ions and clusters on a rare gas matrix: neutralization and luminescence
Low energy collisions of atomic ions and cluster ions with rare gas covered metal substrates can lead to strong light emission which is element and size specific. Instead of a direct energy transfer into the electronic system of the cluster the observed emission originates from excitons trapped in the rare gas layer which carries the excitation energy. The nature of the processes involved in the neutralization and excitation of the neutral clusters electronic system are discussed. Strong analogies to thermoluminescence are found.
Harbich07 PhysRevB_76_104306.pdf
openaccess
437.75 KB
Adobe PDF
930db52fb15c0e075da00a1000aa12e5