一种简便的尺寸可控的铋纳米粒子的合成方法及其在高质量硒化镉胶体量子线的 SLS 生长中的应用。

An easy shortcut synthesis of size-controlled bismuth nanoparticles and their use in the SLS growth of high-quality colloidal cadmium selenide quantum wires.

机构信息

Department of Chemistry and Center for Materials Innovation, Washington University, St. Louis, MO 63130-4899, USA.

出版信息

Small. 2010 Feb 22;6(4):573-81. doi: 10.1002/smll.200902077.

DOI:10.1002/smll.200902077

PMID:20108241

Abstract

An easy shortcut synthesis of thermally stable, near-monodisperse Bi nanoparticles from BiCl(3) and Na[N(SiMe(3))(2)] is described. The diameters of the Bi nanoparticles are controlled in the range of 4-29 nm by varying the amounts of BiCl(3) and Na[N(SiMe(3))(2)] employed. Standard deviations in their diameter distributions are 5-15% of the mean diameters, consistent with near monodispersity. These Bi nanoparticles are shown to be the best currently available catalysts for the solution-liquid-solid (SLS) growth of high-quality CdSe quantum wires.

摘要

本文描述了一种从 BiCl(3) 和 Na[N(SiMe(3))(2)] 出发简便快捷地合成热稳定、近乎单分散的 Bi 纳米粒子的方法。通过改变 BiCl(3)和 Na[N(SiMe(3))(2)]的用量，可以将 Bi 纳米粒子的直径控制在 4-29nm 的范围内。其直径分布的标准偏差为平均直径的 5-15%，表明具有近单分散性。这些 Bi 纳米粒子是目前用于溶液-液-固（SLS）法生长高质量 CdSe 量子线的最佳催化剂。