Unraveling the site-specific energy transfer driven tunable emission characteristics of Eu³⁺ & Tb³⁺ co-doped Ca₁₀(PO₄)₆F₂ phosphors.

ABSTRACT: In this study we have explored Ca₁₀(PO₄)₆F₂ as host to develop a variety of phosphor materials with tunable emission and lifetime characteristics based on Eu³⁺ and Tb³⁺ as co-dopant ions and the energy transfer process involved with them. The energy transfer from the excited state of Tb³⁺ ion to the ⁵D₀ state of Eu³⁺ makes it possible to tune the colour characteristics from yellow to orange to red. Further, such energy transfer process is highly dependent on the concentration of Eu³⁺ and Tb³⁺ ions and their site-selective distribution among the two different Ca-sites (CaO₉ and CaO₆F) available. We have carried out DFT based theoretical ca

SUBMITTER: Pathak N 

PROVIDER: S-EPMC9041490 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature