Role of Mg doping on morphology and photoluminescence features of MgxZn1−xO films prepared by ultrasonic spray pyrolysis

被引：0
|
作者：
Haiming Zhang
Tingting Zhao
Guofeng Hu
Lingling Miao
Yan Yang
机构：
[1] Tianjin Polytechnic University,School of Science
来源：
Journal of Materials Science: Materials in Electronics | 2012年 / 23卷
关键词：
Doping Concentration; Interstitial Zinc; Ultrasonic Spray Pyrolysis; Obvious Blue Shift; Ultrasonic Spray Pyrolysis Method;
D O I：
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中图分类号：
学科分类号：
摘要：
The MgxZn1−xO thin films with thickness about several μm were fabricated for different Mg doping concentrations on p-type Si substrates by using an ultrasonic spray pyrolysis method. The morphologies, crystal structures and optical properties were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD) and photoluminescence (PL), respectively. The SEM results indicated that the surface of MgxZn1−xO films with low Mg concentrations was flat and compact, and the roughness of films increased with Mg concentration. The XRD patterns demonstrated that the low Mg concentration MgxZn1−xO (x < 0.21) film had a wurtzite structure and the MgO phase was absent. The PL spectra revealed that UV emission has an obvious blue shift with the increase of Mg composition.
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页码：1933 / 1937
页数：4
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