Lead-free halide double perovskites (DPs) have evoked great interest due to their unique optical properties. Recently, lanthanide ion (Ln3+) with rich electronic energy levels have been proposed for tailoring the optical performance of DPs toward the near-infrared (NIR) regions.
Click here for original story, Researchers unveil local electronic structure of lanthanide-doped double perovskites
Source: Phys.org