Optimization of the synthetic parameters for efficient NIR luminescence in ytterbium-doped CsPbCl 3 perovskite quantum dots

Ytterbium-doped perovskite quantum dots show promise for optoelectronic and imaging applications, yet achieving efficient Yb incorporation remains challenging. We systematically optimized the synthesis parameters, including reaction temperature, precursor stoichiometry, OA/OAm ratio, and ligand content, which indeed strongly govern the Yb incorporation efficiency and emission intensity.