The Large-Scale Synthesis of Vinyl-Functionalized Silicon Quantum Dot and Its Application in Miniemulsion Polymerization

Abstract EN

Stable luminescence, size-tunability, and biocompatibility encourage the deployment of Cd-free NPs into diverse biological applications.

Here we report one-pot synthesis of blue-emitting and polymerizable silicon quantum dots (Si QDs) from which water-soluble Si QDs embedded polystyrene nanoparticles (SiQD@PS NPs) were prepared using a miniemulsion polymerization approach.

The hydrodynamic size of NPs was controlled by KOH to oleic acid molar ratio.

Studies on the photoluminescence properties of SiQD@PS NPs in different conditions reveal that they exhibit two-photon luminescence property and high stability against pH and UV exposure.

These NPs add new size regime to the Si QDs based luminescent makers for bioimaging and therapy applications.