Highly efficient and thermally stable broadband NIR phosphors by rationally bridging Cr³⁺–Yb³⁺ in LiScGe₂O₆ for optical bioimaging

Abstract

A broadband NIR phosphor covering the 750–1200 nm region with high luminescence efficiency and good thermal stability was realized by the energy transfer of Cr 3+ → Yb 3+ .