Photoluminescence properties of InP/GaP/ZnS core/shell/shell colloidal quantum dots treated with halogen acids

Highly efficient narrowed emitting AgInxGa1−xS2/AgGaS2 quantum dots via an HF-assisted one-pot synthesis strategy and their light-emitting diodes

“…Conversely, an excessive amount of HF and an excessive reaction temperature led to the introduction of excess water molecules in the HF solution addition process and increased precursor molecule activity in the reaction system, resulting in defects on the QD surface. 44,45 This enhanced defect emission, thereby affecting the PL properties of AIGS/AGS QDs. To further investigate the effect of HF treatment on band emission and defect emission, we perform peak splitting and Gaussian fitting of the PL spectra of AIGS/AGS QDs and AIGS/ AGS-HF QDs (see Fig.…”