Synthesis and Characterization of Zintl-Phase BaCd₂P₂ Quantum Dots for Optoelectronic Applications.

ABSTRACT: We demonstrate the growth of size-controlled, high optical quality Zintl-phase BaCd₂P₂ colloidal quantum dots (QDs), an emerging semiconductor absorbing/emitting in the red and predicted to have favorable defect chemistry. The QDs are grown via hot injection of a phosphorus precursor into a solution of solubilized Ba and Cd precursors. The absorbance and photoluminescence (PL) are tunable via growth temperature and show a bandgap ranging from 1.47 to 1.81 eV, depending on the size, which ranges from 3 to 9 nm based on electron microscopy. Selected area electron diffraction is used to determine that the BaCd₂P₂ QDs crystallize in the P3̅m1 space group, same as the bulk material. Raman spectroscopy, powder X-ray diffraction, and X-ray

SUBMITTER: Hautzinger MP 

PROVIDER: S-EPMC11966744 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature