ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 29, 2025

All-inorganic cesium lead halide perovskite quantum dots (QDs) have emerged as promising materials for next-generation optoelectronic devices due to their exceptional photoluminescence (PL) properties, including high yields and narrow emission line widths. However, unlocking full potential requires innovative strategies further enhance precisely tune fluorescence efficiency. In this work, we present a novel 0D-2D-3D mixed-dimensional van der Waals (vdW) heterostructure comprising CsPbBr3 QDs, multilayer hexagonal boron nitride (hBN), gold (Au) nanoparticle film, achieving remarkable 7-fold PL enhancement. We attribute enhancement the synergy of plasmon-induced incident electromagnetic field an increased spontaneous rate via Purcell effect, optimized by tuning hBN spacer thickness 26 nm. This design provides new insights into metal-enhanced dots, it offers scalable platform efficiency in future applications.

Язык: Английский