Tunable Visible Light and Energy Transfer Mechanism in Tm and Silver Nanoclusters within Co-Doped GeO-PbO Glasses.

This study introduces a novel method for producing Ag nanoclusters (NCs) within GeO-PbO glasses doped with Tm ions. Sample preparation involved the melt-quenching method, employing adequate heat treatment to facilitate Ag NC formation. Absorption spectroscopy confirmed trivalent rare-earth ion incorporation.

Silver Nanoclusters Tunable Visible Emission and Energy Transfer to Yb Ions in Co-Doped GeO-PbO Glasses for Photonic Applications.

This work investigates the optical properties of Yb ions doped GeO-PbO glasses containing Ag nanoclusters (NCs), produced by the melt-quenching technique. The lack in the literature regarding the energy transfer (ET) between these species in these glasses motivated the present work. Tunable visible emission occurs from blue to orange depending on the Yb concentration which affects the size of the Ag NCs, as observed by transmission electron microscopy.