Details

Autor(en) / Beteiligte

• Rosa-Pardo, Ignacio
• Ciccone, Alessandro
• Arenal, Raúl
• Galian, Raquel E.
• Pérez-Prieto, Julia

Titel

One-Pot Synthesis of Stable CsPbBr3@CsPb2Br5 Core–Shell Heteronanocrystals with Controlled Permeability to Halide Ions

Ist Teil von

• Chemistry of materials, 2023-09, Vol.35 (17), p.7011-7019

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A simple one-pot synthetic strategy based on the hot injection methodology was adapted to prepare (photo)­stable and green emissive colloidal CsPbBr3@CsPb2Br5 core@shell heteronanocrystals (HNCs). The photoactive core, specifically CsPbBr3 ternary metal halide nanocrystals, was homogeneously covered with an ultrathin CsPb2Br5 shell (ca. 2 nm), which confers them with long-term stability and a higher photoluminescence quantum yield. Astonishingly, this heterostructure enabled controlled halide exchange to yield unprecedented CsPbCl3@CsPb2Cl5 and CsPbI3@CsPb2I5 HNCs.