Facile synthesis of wide bandgap ZrS 2 colloidal quantum dots for solution processed solar-blind UV photodetectors.

We present a facile one-pot method for the successful synthesis of heavy metal-free ZrS 2 colloidal quantum dots (QDs) with a wide bandgap. To achieve this, we employed 1-dodecanethiol (DT) as a sulfur precursor, enabling the controlled release of H 2 S in situ during the reaction at temperatures exceeding 195 °C. This approach facilitated the synthesis of small-sized ZrS 2 QDs with precise control.