We present a facile one-pot method for the successful synthesis of heavy metal-free ZrS 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 HS during the reaction at temperatures exceeding 195 °C. This approach facilitated the synthesis of small-sized ZrS QDs with precise control.
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