Effect of Mn doping on structural and optical properties of sol gel derived ZnO nanoparticles

被引：59

作者：

Husain, Shahid ^{[1
]}

Alkhtaby, Lila A. ^{[1
]}

Giorgetti, Emilia ^{[2
]}

Zoppi, Angela ^{[2
]}

Miranda, Maurizio Muniz ^{[3
]}

机构：

[1] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India

[2] CNR, Sez Firenze, Ist Sistemi Complessi ISC, I-50019 Florence, Italy

[3] Univ Florence, Dept Chem, I-50019 Florence, Italy

来源：

JOURNAL OF LUMINESCENCE | 2014年 / 145卷

关键词：

Sol-gel process; Fluorescence; FTIR; Raman spectra; ROOM-TEMPERATURE; FILMS; FERROMAGNETISM;

D O I：

10.1016/j.jlumin.2013.07.003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have synthesized the Zn1-xMnx O (x=0.01, 0.02, 0.03 and 0.05) nanoparticles by the sot-gel method. These samples are characterized using x-ray diffraction (XRD), Scanning Electron Microscope (SEM), Ultraviolet/Visible (UV/Vis) spectroscopy, Fluorescence spectroscopy, Raman spectroscopy and Fourier transform infra red (FTIR) spectroscopy. The x-ray diffraction patterns show that all the samples are formed in single phase with a complete solubility of Mn ions in the ZnO matrix. SEM micrographs show that the Mn doped ZnO nanoparticles are hexagonal with wurtzite structure. The particle sizes range between 18 and 35 nm. We have observed a decrease in fluorescence intensity on Mn doping and all the Mn doped samples show lower value of intensity as compared to pure ZnO in the visible range of spectrum. Raman spectroscopy reveals that the characteristic intense band of ZnO at 435 cm(-1) exhibits a decrease in intensity and slightly red shifts for 5% Mn doping. FTIR spectra exhibit additional bands on Mn doping as compared to pure ZnO. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：132 / 137

页数：6

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