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Colloidal semiconductor nanocrystals (NCs), called quantum dots (QDs), have been intensively studied because of their excellent photoluminescence (PL) quantum yields. However, commercial QDs such as CdSe and InP contain toxic or expensive rare elements, limiting their sustainable use. This study focuses on nontoxic, stable, and cheap tin oxides, and synthesized luminescent SnO2 NCs of ≈2 nm in size...
In article number 1704620, Tetsuya Kida and co‐workers report that SnO2 nanocrystals (NCs) of approximately 2 nm show efficient defect‐related photoluminescence (PL) at 400–460 nm with a high quantum yield >60%. The defect‐related emissions are studied using polyoxometalates (POMs) as the PL quencher. This study demonstrates that the PL quenching technique using POMs is effective in studying the...
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