Energy transfer in silver-doped rare gas matrices.

The energy transfer between Ag atoms and dimers isolated in rare gas matrices has been studied by time-resolved fluorescence spectroscopy. In the presence of dimers, excitation of the atomic 5s→5p transitions produces not only the emission bands of the Ag atom, but also those of the Ag dimer. This process has been investigated and the mechanism identified as a Förster–Dexter-type energy transfer from silver atoms (donor) to dimers (acceptor). Rise and decay curves of the emissions from atoms and dimers have been analyzed in a concentration dependence study and a critical radius for the energy transfer of 39±5 Å was derived. [ABSTRACT FROM AUTHOR]