Abstract
We, herein, report a facile green synthetic route for the gram‐scale synthesis of high‐quality thiol‐derivatized zinc selenide quantum dots (QDs) using selenourea as the source of selenium at a relatively low temperature. The one‐pot synthesis of colloidal dots has been achieved by selenizing zinc (II) acetate in a non‐coordinating solvent medium. The structural, microstructural, optical, thermal, textural and electronic properties of the as‐synthesized monodisperse ZnSe dots have been investigated in detail. We attribute the observed green emission from the dots to the donor‐acceptor pair (DAP) recombination of photoexcited charge carriers. All the findings of the investigation indicate that ZnSe QDs hold great promise as a nanoscale emissive probe to unveil cellular dynamics beyond the capabilities of conventional imaging techniques.
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