Multi-capping agents in size confinement of ZnO nanostructured particles

被引：41
作者：
Yogamalar, N. Rajeswari [1 ]
Srinivasan, R. [1 ]
Bose, A. Chandra [1 ]
机构：
[1] Natl Inst Technol, Dept Phys, Nanomat Lab, Tiruchirappalli 620015, Tamil Nadu, India
来源：
OPTICAL MATERIALS | 2009年 / 31卷 / 11期
关键词：
ZnO nanoparticles; Capping agents; PVP; CA; ZINC-OXIDE FILMS; HYDROTHERMAL SYNTHESIS; CONTROLLABLE SYNTHESIS; OPTICAL-PROPERTIES; THIN-FILM; NANOROD; GROWTH; ARRAYS;
D O I：
10.1016/j.optmat.2009.03.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present paper, we report a new approach to synthesize crystalline zinc oxide (ZnO) nanoparticles in the presence of multi-capping agents namely poly-vinylpyrrolidone (PVP) and citric acid (CA), with zinc acetate dihydrate and sodium hydroxide (NaOH as pellets) as a source material and their characteristic studies. The ZnO nanoparticles grown under this simple chemical process involve a heterogeneous chemical reaction in the presence of water as a solvent medium and reaction temperature of 100 degrees C for 48 h in a closed environment. The structural, optical and chemical features of ZnO nanoparticles were systematically studied by X-ray powder diffraction (XRD), Scanning Electron Microscopy (SEM). Fourier Transform Infrared Spectroscopy (FT-IR) and Ultra Violet-visible (UV-vis) absorption spectroscopy. The Williamson-Hall (W-H) plot was also performed to distinguish the effect of crystalline size-induced broadening and strain-induced broadening at Full Width Half Maximum (FWHM) of the XRD profile. The growth mechanism of ZnO, nanoparticles and the effective capping mechanism shown by each capping agent are briefly discussed. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1570 / 1574
页数：5
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