Small 2015-12-02

Monolayer Silane-Coated, Water-Soluble Quantum Dots.

Xi Zhang, Armen Shamirian, Ali M Jawaid, Christina M Tyrakowski, Leah E Page, Adita Das, Ou Chen, Adela Isovic, Asra Hassan, Preston T Snee

文献索引：Small 11 , 6091-6, (2015)

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摘要

A one-step method to produce ≈12 nm hydrodynamic diameter water-soluble CdSe/ZnS quantum dots (QDs), as well as CdS/ZnS, ZnSe/ZnMnS/ZnS, AgInS2 /ZnS, and CuInS2 /ZnS QDs, by ligand exchange with a near-monolayer of organosilane caps is reported. The method cross-links the surface-bound silane ligands such that the samples are stable on the order of months under ambient conditions. Furthermore, the samples may retain a high quantum yield (60%) over this time. Several methods to functionalize aqueous QD dispersions with proteins and fluorescent dyes have been developed with reaction yields as high as 97%. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

相关化合物

  • 碳酸铯
  • 二氯甲烷
  • N,N-二甲基甲酰胺
  • 三甲氧基硅烷
  • 异氰酸丙酯

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