Tailoring Substitutional Sites for Efficient Lanthanide Doping in Lead-Free Perovskite Nanocrystals with Enhanced Near-Infrared Photoluminescence.

ABSTRACT: The incorporation of rare earth lanthanide ions (Ln³⁺) into lead-free halide perovskite nanocrystals (NCs) is an effective and promising strategy to expand their optical, magnetic, and electrochemical properties. Herein, we designed and synthesized various Ln³⁺ (including Yb³⁺, Er³⁺, and Nd³⁺), doped Sb³⁺- or Bi³⁺-based and Sb³⁺/Bi³⁺ alloyed lead-free perovskite NCs, including vacancy-induced perovskite (A₃B(III)₂X₉), double perovskite (A₂B(I)B (III)X₆), and layered-double perovskite (A₄B(II)B(III)₂X₁₂) NCs with different energy transfer pathways to study the Ln³⁺ dopant photoluminescence (PL).

SUBMITTER: Lin H 

PROVIDER: S-EPMC12020422 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature