Effects of stabilizer ratio on photoluminescence properties of sol-gel ZnO nano-structured thin films

被引：34
作者：
Boudjouan, F. [1 ]
Chelouche, A. [1 ]
Touam, T. [2 ]
Djouadi, D. [1 ]
Khodja, S. [2 ]
Tazerout, M. [1 ]
Ouerdane, Y. [3 ]
Hadjoub, Z. [2 ]
机构：
[1] Univ Bejaia, Lab Genie Environm, Bejaia 06000, Algeria
[2] Univ Badji Mokhtar, Semicond Lab, Annaba 23000, Algeria
[3] Univ St Etienne, Lab Hubert Curien, F-42000 St Etienne, France
来源：
JOURNAL OF LUMINESCENCE | 2015年 / 158卷
关键词：
ZnO thin films; Sol-gel; Stabilizer ratio; Photoluminescence; DOPED ZNO; OPTICAL-PROPERTIES; FERROMAGNETIC BEHAVIOR; SPRAY-PYROLYSIS; TEMPERATURE; CELLS; DEPOSITION; EFFICIENCY; PH;
D O I：
10.1016/j.jlumin.2014.09.026
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Nanostructured ZnO thin films with different molar ratios of MEA to zinc acetate (0.5, 1.0, 1.5 and 2.0) have been deposited on glass substrates by a sol-gel dip coating technique. X-ray diffraction, Scanning Electron Microscopy, UV-visible spectrophotometry and photoluminescence spectroscopy have been employed to investigate the effect of MEA stabilizer ratio on structural, morphological, absorbance and emission properties of the ZnO thin films. Diffraction patterns have shown that all the films are polycrystalline and exhibit a wurtzite hexagonal structure. The c axis orientation has been enhanced with increasing stabilizer ratio. SEM micrographs have revealed that the morphology of the ZnO films depend on stabilizer ratio. The UV-visible absorption spectra have demonstrated that the optical absorption is affected by stabilizer ratio. The photoluminescence spectra have indicated one ultraviolet and two visible emission bands (green and red), while band intensities are found to be dependent on stabilizer ratio. ZnO thin films deposited at MEA ratio of 1.0 show the highest UV emission while the minimum UV emission intensity is observed in thin films deposited at ratio of 0.5 and the maximum green has been recorded for films deposited at MEA ratio of 2.0. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：32 / 37
页数：6
相关论文
共 47 条
[41]   Application of ZnO micro-flowers as scattering layer for ZnO-based dye-sensitized solar cells with enhanced conversion efficiency [J].
Xu, Jinlei ;
Fan, Ke ;
Shi, Wenye ;
Li, Kan ;
Peng, Tianyou .
SOLAR ENERGY, 2014, 101 :150-159
[42]   Effects of stabilizer ratio on the optical constants and optical dispersion parameters of ZnO nano-fiber thin films [J].
Yahia, I. S. ;
Farag, A. A. M. ;
Cavas, M. ;
Yakuphanoglu, F. .
SUPERLATTICES AND MICROSTRUCTURES, 2013, 53 :63-75
[43]   Micro-lotus constructed by Fe-doped ZnO hierarchically porous nanosheets: Preparation, characterization and gas sensing property [J].
Yu, Ang ;
Qian, Jieshu ;
Pan, Hao ;
Cui, Yuming ;
Xu, Meigui ;
Tu, Luo ;
Chai, Qingli ;
Zhou, Xingfu .
SENSORS AND ACTUATORS B-CHEMICAL, 2011, 158 (01) :9-16
[44]   Hydrothermal synthesis and characterization of ZnO films with different nanostructures [J].
Yu, Jiaoxian ;
Huang, Baibiao ;
Qin, Xiaoyan ;
Zhang, Xiaoyang ;
Wang, Zeyan ;
Liu, Haixia .
APPLIED SURFACE SCIENCE, 2011, 257 (13) :5563-5565
[45]   Temperature-dependent luminescence dynamics for ZnO thin films [J].
Zawadzka, A. ;
Plociennik, P. ;
Strzelecki, J. .
OPTICAL AND QUANTUM ELECTRONICS, 2014, 46 (01) :87-101
[46]   Elaboration of ZnO thin films with preferential orientation by a soft chemistry route [J].
Znaidi, L ;
Illia, GJAAS ;
Le Guennic, R ;
Sanchez, C ;
Kanaev, A .
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2003, 26 (1-3) :817-821
[47]   Sol-gel-deposited ZnO thin films: A review [J].
Znaidi, Lamia .
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2010, 174 (1-3) :18-30
12345