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Gas sensor using gold doped copper oxide nanostructured thin films as modified cladding fiber |
| Hussein T. Salloom1, Rushdi I. Jasim2, Nadir Fadhil Habubi2, Sami Salman Chiad2, M Jadan3,4, and Jihad S. Addasi5,† |
1 Al-Nahrain Nanorenewable Energy Research Centre, Al-Nahrain University, Baghdad, Iraq;
2 Department of Physics, College of Education, Mustansiriyah University, Baghdad, Iraq;
3 Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia;
4 Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia;
5 Department of Applied Physics, College of Science, Tafila Technical University, Tafila 66110, Jordan |
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Abstract We investigate the spectral response of nanostructured copper oxides thin film. Gold was doped in two different concentrations (2% and 4%) using the spray method. A novel ammonia gas sensor at various concentrations (0-500 ppm) was fabricated by replacing CuO films with a clad region. In addition, the effect of gold doping on structural, optical, and morphological properties has been demonstrated. The study shows that the spectral intensity increases linearly with ammonia concentration. The 4% Au doped CuO presents higher sensitivity compared with 2% doped and pure copper oxides. Time response characteristics of the sensor are also reported.
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Received: 22 August 2020
Revised: 05 December 2020
Accepted manuscript online: 11 December 2020
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PACS:
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85.40.Ry
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(Impurity doping, diffusion and ion implantation technology)
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42.81.Pa
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(Sensors, gyros)
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74.25.Gz
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(Optical properties)
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68.37.-d
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(Microscopy of surfaces, interfaces, and thin films)
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Corresponding Authors:
Jihad S. Addasi
E-mail: addasijihad@gmail.com
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Cite this article:
Hussein T. Salloom, Rushdi I. Jasim, Nadir Fadhil Habubi, Sami Salman Chiad, M Jadan, and Jihad S. Addasi Gas sensor using gold doped copper oxide nanostructured thin films as modified cladding fiber 2021 Chin. Phys. B 30 068505
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