Efficient Mn²⁺ Doping in Non-Stoichiometric Cesium Lead Bromide Perovskite Quantum Dots.

ABSTRACT: Doping magnetic transition metal ions (e.g., Mn²⁺) into colloidal quantum dots endows novel optical and magnetic properties to the host materials. CsPbBr₃ quantum dots (QDs) are emerging light-emitting materials with high structural and chemical flexibility in the visible spectral regime. However, efficiently doping Mn²⁺ ions in CsPbBr₃ QDs remains challenging, especially when size confinement and ensemble uniformity are needed for understanding the underexplored exciton-dopant exchange interaction. Here, we introduce a doping mechanism based on electrostatic surface Mn²⁺ adsorption that enables efficient Mn²⁺ incorporation in strongly confined CsPbBr₃ QDs. The resultant QDs are found to have a Cs-deficient stoich

SUBMITTER: Hidayatova L 

PROVIDER: S-EPMC12464970 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature