Abstract
High-quality water-soluble near-infrared emitting quantum dots (QDs) are synthesized using a two-step approach for the first time. The CdS shell efficiently increases the structural stability of PbS QDs during water transfer and leads to good photostability and a significantly enhanced quantum yield as high as 30% in buffer.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Cadmium Compounds / chemistry*
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Hydrophobic and Hydrophilic Interactions*
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Lead / chemistry*
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Microscopy, Electron, Transmission
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Polymers / chemistry*
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Quantum Dots*
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Solubility
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Spectroscopy, Near-Infrared
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Sulfides / chemistry*
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Water / chemistry*
Substances
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Cadmium Compounds
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Polymers
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Sulfides
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cadmium sulfide
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Water
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lead sulfide
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Lead