Emissive properties of silver particles at silver oxide surface defects

The absorption and fluorescence properties of pure silver and silver oxide model systems have been explored using ab initio linear response methods in context of the observed fluorescence by photoactivation of thin silver oxide films. Silver clusters interacting with F-center defects created from silver oxide surfaces as well as silver clusters interacting directly with the silver oxide surface are good candidates for emissive centers giving rise to fluorescence in the visible regime. These findings represent a starting point towards conceptual understanding of emissive silver cluster-support properties, which might be important for the development of optical storage media with large data capacities. PACS 31.15.Qg; 31.15.Ar