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Aqueous lead sulfide (PbS) quantum dots (QDs) synthesized by traditional methods are unstable, so that they are usually coated with cadmium sulfide (CdS) to prevent oxidation, which are complicated and not satisfactory for mass production. Here, stable ternary Pb1−xCdxS QDs were synthesized by in situ coprecipitation of Pb4−nCdnO4 bimetallic clusters in an aqueous solution, which possess a uniform...
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