ZnO nanoparticles prepared by electrical arc discharge method in water

被引：64

作者：

Ashkarran, Ali Akbar ^{[1
]}

Zad, Azam Iraji ^{[1
,2
]}

Mahdavi, Seyed Mohammad ^{[1
,2
]}

Ahadian, Mohammad Mahdi ^{[1
]}

机构：

[1] Sharif Univ Technol, Inst Nanosci & Nanotechnol INST, Tehran, Iran

[2] Sharif Univ Technol, Dept Phys, Tehran, Iran

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 118卷 / 01期

关键词：

ZnO nanoparticles; Arc discharge; XRD; Optical properties; ZINC-OXIDE NANOSTRUCTURES; CARBON ONIONS; GROWTH; NANORODS;

D O I：

10.1016/j.matchemphys.2009.07.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We produced ZnO nanoparticles by high current electrical arc discharge of zinc electrodes in deionized (DI) water. X-ray diffraction (XRD) analysis shows formation of crystalline ZnO phase with hexagonal structure and 14 nm single crystalline domain size Dynamic light scattering (DLS) result indicates that at 5A arc current, the size of the particles is about 100 nm and increases by increasing the arc current Absorption spectroscopy of the samples obtained at different arc currents shows an absorption edge on 370 nm which has a red shift by increasing the arc current. Band gap of the produced ZnO nanoparticles at 5 A arc current corresponds to 3.8 eV which decreases to 3.3 eV by increasing the arc current up to 15 A. The photoluminescence (PL) spectrum of the sample showed a strong ultraviolet (UV) emission peak around 383 nm, corresponding to the ZnO nanoparticles. (c) 2009 Elsevier B.V. All rights reserved

引用

页码：6 / 8

页数：3

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