The crystalline structure, conductivity and optical properties of Co-doped ZnO thin films

Optik ◽  
2014 ◽  
Vol 125 (19) ◽  
pp. 5864-5868 ◽  
Author(s):  
Said Benramache ◽  
Boubaker Benhaoua ◽  
Okba Belahssen
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Zhao Li ◽  
Zhiyong Lv ◽  
Xiaoyan Liang ◽  
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Yasser A. M. Ismail ◽  
...  

Optik ◽  
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Abderrazak Guettaf ◽  
Okba Belahssen

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Al–Sn co-doped ZnO thin films were fabricated onto quartz glass substrates by the sol-gel method. The surface morphology, electrical and optical properties at different post-deposition heating temperatures were investigated. The grains of preferred c-axis showed a well-mixed microstructure and the peak height was enhanced with the post-deposition heating temperature increasing from 400°C to 600°C. Doped films showed a preferential orientation along the (002) plane, while the preferential orientation changed to the (101) plane when temperature was higher than 500°C. The lowest resistivity 6×10–3Ω•cm was observed from samples made at 500°C, with an average 91.2% optical transmittance in the visible range. In this study, optical band gap of all the doped films were broadened, regardless of post–deposition heating temperature.


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Shaobo Shi ◽  
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Youwei Wang ◽  
Mingxue Zhu ◽  
...  

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