Publications de Christoph Sieber

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 em ...

2007

Collision-induced luminescence from the impact of ions and cluster ions on solid rare gases

Wolfgang Harbich, Christoph Sieber

Light emission during the collision of ions and cluster ions on a metal surface covered by rare gas matrices of variable thickness is reported. The light intensity as a function of distance from the metal surface follows the classical image dipole theory. ...

Elsevier2006

Excitation and fluorescence spectroscopy of size selected silver clusters embedded in rare gas matrices

Christoph Sieber

EPFL2002

Absorption and fluorescence spectra of Ar-matrix-isolated Ag3 clusters

Wolfgang Harbich, Christoph Sieber

The absorption and fluorescence spectra of silver trimers isolated in an Ar matrix show the existence of three distinct lattice sites whereby the population of each site depends on the conditions of matrix preparation. Irradiation of certain absorption ban ...

Elsevier2000