Ultrabright PbSe magic-sized clusters.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 18671439.
- Also identified by DOI 10.1021/nl801685a.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
We present the synthesis and characterization of novel, ultrasmall PbSe magic-sized nanoclusters (MSCs). Unlike the syntheses of high-quality semiconductor nanoparticles, the MSC synthesis is straightforward, occurring at room temperature in air over several hours. MSCs have core diameters <2 nm and fluoresce in the near-infrared (900 nm) with remarkable quantum efficiencies consistently greater than 50%. The relatively slow growth of MSCs allows for a significant scale up of reaction volumes. Transfer to aqueous solvents has also been demonstrated, establishing MSCs as a potential new fluorophore for applications in biological imaging.