College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solid, Anhui Normal University, Wuhu, 241000, Peoples Republic of China.
Nanoscale Res Lett. 2008 Jun 24;3(6):213-20. doi: 10.1007/s11671-008-9139-z.
A new simple method for synthesis of core/shell CdSe/ZnS nanocrystals (NCs) is present. By adapting the use of cadmium stearate, oleylamine, and paraffin liquid to a non-injection synthesis and by applying a subsequent ZnS shelling procedure to CdSe NCs cores using Zinc acetate dihydrate and sulfur powder, luminescent CdSe/ZnS NCs with quantum yields of up to 36% (FWHM 42-43 nm) were obtained. A seeding-growth technique was first applied to the controlled synthesis of ZnS shell. This method has several attractive features, such as the usage of low-cost, green, and environmentally friendlier reagents and elimination of the need for air-sensitive, toxic, and expensive phosphines solvent. Furthermore, due to one-pot synthetic route for CdSe/ZnS NCs, the approach presented herein is accessible to a mass production of these NCs.
一种新的简单方法用于合成核壳型 CdSe/ZnS 纳米晶体（NCs）。通过将硬脂酸镉、油胺和石蜡液体适用于非注射合成，并通过使用乙酸锌二水合物和硫粉对 CdSe NCs 核进行后续的 ZnS 壳层处理，获得了荧光量子产率高达 36%（半峰宽 42-43nm）的 CdSe/ZnS NCs。首先将种子生长技术应用于 ZnS 壳的可控合成。该方法具有几个吸引人的特点，例如使用成本低、绿色和环境友好的试剂，以及消除对空气敏感、有毒和昂贵的膦溶剂的需求。此外，由于 CdSe/ZnS NCs 的一锅合成路线，本文所提出的方法可用于这些 NCs 的大规模生产。
