Mn²⁺/Yb³⁺ Codoped CsPbCl₃ Perovskite Nanocrystals with Triple-Wavelength Emission for Luminescent Solar Concentrators.

ABSTRACT: Doping metal ions into lead halide perovskite nanocrystals (NCs) has attracted great attention over the past few years due to the emergence of novel properties relevant to optoelectronic applications. Here, the synthesis of Mn²⁺/Yb³⁺ codoped CsPbCl₃ NCs through a hot-injection technique is reported. The resulting NCs show a unique triple-wavelength emission covering ultraviolet/blue, visible, and near-infrared regions. By optimizing the dopant concentrations, the total photoluminescence quantum yield (PL QY) of the codoped NCs can reach ≈125.3% due to quantum cutting effects. Mechanism studies reveal the efficient energy transfer processes from host NCs to Mn²⁺ and Yb³⁺ dopant ions, as well as a possible inter-dopant energy transfer fr

SUBMITTER: Cai T 

PROVIDER: S-EPMC7509694 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature