The effects of zinc nitrate, zinc acetate and zinc chloride precursors on investigation of structural and optical properties of ZnO thin films

被引:180
作者
Bacaksiz, E. [1 ]
Parlak, M. [2 ]
Tomakin, M. [3 ]
Ozcelik, A. [1 ]
Karakiz, M. [4 ]
Altunbas, M. [1 ]
机构
[1] Karadeniz Tech Univ, Fac Arts & Sci, Dept Phys, TR-61080 Trabzon, Turkey
[2] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey
[3] Rize Univ, Dept Phys, Rize, Turkey
[4] Kirikkale Univ, Fac Arts & Sci, Dept Phys, Kirikkale, Turkey
关键词
Zinc oxide; Microrods; Spray pyrolysis; Transmittance;
D O I
10.1016/j.jallcom.2007.11.061
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 [物理化学]; 081704 [应用化学];
摘要
ZnO thin films were prepared using zinc chloride, zinc acetate and zinc nitrate precursors by spray pyrolysis technique oil glass substrates at 550 degrees C. Structural and optical properties of ZnO films were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and optical transmittance spectra. Regardless of precursors, ZnO thin films are all in hexagonal crystallographic phase and have to (0 0 2) preferred orientation. SEM images show completely different surface morphologies for each precursor in ZnO thin films. ZnO rod was observed only for zinc chloride precursor. The optical measurements reveal that films have a low transmittance and a direct band gap approximately 3.30 eV, which is very close to band gap of intrinsic ZnO. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:447 / 450
页数:4
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