Star-shaped PbS nanocrystals prepared by hydrothermal process in the presence of thioglycolic acid

被引：131

作者：

Salavati-Niasari, Masoud ^{[1
]}

Ghanbari, Davood ^{[2
]}

Loghman-Estarki, Mohammad Reza ^{[3
]}

机构：

[1] Univ Kashan, Inst Nano Sci & Nano Technol, Kashan, Iran

[2] Islamic Azad Univ, Arak Branch, Arak, Iran

[3] Isfahan Univ Technol, Dept Mat Engn, Esfahan, Iran

来源：

POLYHEDRON | 2012年 / 35卷 / 01期

基金：

美国国家科学基金会;

关键词：

Lead sulfide; Nanostructures; Hydrothermal; Optical properties; QUANTUM DOTS; CRYSTALS; NANOSTRUCTURES; NANOPARTICLES; GROWTH; EVOLUTION; NANORODS; ENERGY;

D O I：

10.1016/j.poly.2012.01.010

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nanocrystalline PbS with different morphologies and particle sizes was obtained via a simple hydrothermal reaction between Pb(NO3)(2) and thioglycolic acid (TGA) at relatively low temperature. Products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) spectroscopy, photoluminescence (PL) and Fourier transform infrared (FT-IR) spectroscopy. Depending on the reactant concentration and molar ratio of TGA to the lead nitrate, the morphologies of the PbS crystals varied and the crystals with shapes of nanoparticles, star-like dendrite and nanorods were obtained. The effect of reaction temperature and reaction time on the morphology and particle sizes of nanocrystalline PbS products has been investigated. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：149 / 153

页数：5

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