Dip coated nickel zinc oxide thin films: Structural, optical and magnetic investigations

被引：20
|
作者：
Kayani, Zohra Nazir [1 ]
Kiran, Faiza [1 ]
Riaz, Saira [2 ]
Zia, Rehana [1 ]
Naseem, Shahzad [2 ]
机构：
[1] Lahore Coll Women Univ, Lahore 54000, Pakistan
[2] Univ Punjab, Ctr Excellence Solid State Phys, Lahore 54950, Pakistan
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2015年 / 77卷
关键词：
Band gap; Doping; Dip coating; Magnetic properties; Structural properties; Thin films; ZNO; SEMICONDUCTOR; NANOPARTICLES; PH;
D O I：
10.1016/j.spmi.2014.11.011
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Dip-coating technique was used to deposit NiZnO thin films on glass substrates at varying withdrawal speed in the range of 150-350 mm/s and annealed at 500 degrees C for 4 h. X-ray diffraction (XRD) results showed that the deposited NiZnO thin films have a pure wurtzite structure without any significant change in the structure caused by substituting Zn ion with Ni ion. Crystallite size increased from 248 to 497 nm with increase in withdrawal speed. Vibrating Sample magnetometer (VSM) results indicated that NiZnO thin films exhibit ferromagnetic properties. Increase in saturation magnetization with increase in withdrawal speed is observed. Evaluated optical band gap of the films reduced from 3.18 eV to 2.50 eV with the increase in withdrawal speed of the substrate. (C) 2014 Elsevier Ltd. All rights reserved.
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页码：171 / 180
页数：10
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