Room‐Temperature Synthesis of Air‐Stable and Size‐Tunable Luminescent ZnS‐Coated Cd₃P₂ Nanocrystals with High Quantum Yields

By designing highly soluble precursors, Cd3P2/ZnS quantum dots (QDs) can be prepared at room temperature. They are shown to be air-stable, size-tunable, and of high optical quality (quantum yields over 50 %). A large photoluminescence range can be covered by simple modulation of the concentration of reactants (see picture) and of the temperature (30 °C, 90 °C).