Single-Molecule Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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Chem. Commun., 2013,49, 6346-6348
28 Apr 2013,
28 May 2013
First published online
29 May 2013
Multilayered ZnS shells are coated on a CdSe quantum dot (QD) core by a tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction (TOP-SILAR) method. Notably, the quantum yield (QY) of obtained core–shell CdSe/ZnS QDs can reach up to 95% after coating with a 3-monolayered ZnS shell, and is maintained even after coating with a 6-monolayered ZnS shell, breaking through the bottleneck of low QY at high coverage of the shell.
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