Core–shell like glass containing lanthanide doped nanocrystals for efficient luminescence

Abstract

We constructed a core–shell like nanoarchitecture in Yb/Er ion and Yb/Ho SrTiO₃ nanocrystal-codoped tellurite–borate glass. We demonstrated that the adverse energy transfer between Er³⁺ ions in the glass region and Ho³⁺ ions in the crystal region was effectively prohibited, which permits independent and highly efficient emission from Er³⁺ and Ho³⁺ ions.