Shape-controlled synthesis of CdS nanocrystals in mixed solvents

被引：101

作者：

Chu, HB ^{[1
]}

Li, XM ^{[1
]}

Chen, GD ^{[1
]}

Zhou, WW ^{[1
]}

Zhang, Y ^{[1
]}

Jin, Z ^{[1
]}

Xu, JJ ^{[1
]}

Li, Y ^{[1
]}

机构：

[1] Peking Univ, Key Lab Phys & Chem Nanodevices, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

CRYSTAL GROWTH & DESIGN | 2005年 / 5卷 / 05期

关键词：

D O I：

10.1021/cg050068w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The formation of CdS nanotetrahedrons, pencil-shaped nanorods, tetrapods, prickly spheres, and high aspect-ratio hexagonal nanoprisms has been, respectively, achieved by adjusting the ratio of two solvents ethylenediamine and ethylene glycol under the solvothermal condition. None of the surfactants or other templates was needed in the process. The reaction time and temperature can be used as the additional means to control the size and morphology. By closely inspecting the growing process of the tetrapod structure and the crystallographic analysis of the products, we proposed that the lattice space match and the location match of ions at the interface of the zinc blende core and the wurtzite arms are two important structural factors to guide this furcate growth. Also, the anisotropic adsorption ability of ethylenediamine at the different surfaces of wurtzite CdS crystals results in the 1D growth of the arms. The possible growing mechanisms of CdS with other shapes were also discussed.

引用

页码：1801 / 1806

页数：6

共 35 条

[1] Nanocomposite materials for optical applications [J].