Effect of aluminum doping concentration on optical, magnetic and microstructural properties of MnZnO thin films

被引：3

作者：

Kayani, Zohra Nazir ^{[1
]}

Kausar, Turfa ^{[1
]}

Riaz, Saira ^{[2
]}

Naseem, Shahzad ^{[2
]}

机构：

[1] Lahore Coll Women Univ, Lahore, Pakistan

[2] Univ Punjab, Ctr Excellence Solid State Phys, Lahore, Pakistan

来源：

OPTIK | 2017年 / 144卷

关键词：

Al; Mn: ZnO thin film; Dip coating; Morphology; Ferromagnetism; X-RAY-DIFFRACTION; ZNO; ENERGY;

D O I：

10.1016/j.ijleo.2017.06.040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Al doped MnZnO thin films have been successfully deposited via the gel route by varying concentration of Al between 1 and 3%. Identification of the chemical components of the films was done using Fourier Transform Infrared Spectroscopy (FTIR). The structural properties evaluated by using X-ray diffraction showed that the Al doped MnZnO films are amorphous and only film with 3% Al doping exhibits hexagonal wurtzite structure along a-axis orientation. The surface morphological studies from Scanning Electron Microscope (SEM) showed the nano-crystalline grains on the surface. Transmission among the wavelength range 300-900 nm was found to be decreased with increase of doping percentage of Al. The optical band gap was decreased from 3.46 to 3.4 eV when%. of Al doping was increased till 2.5%. Further increase in Al percentage to 3% increased band gap. The hysteresis curves showed ferromagnetic behavior and magnetic properties were enhanced with increase in Al%. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：172 / 179

页数：8

共 22 条

[1] Photoluminescence, FTIR and X-ray diffraction studies on undoped and Al-doped ZnO thin films grown on polycrystalline α-alumina substrates by ultrasonic spray pyrolysis [J].