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Semiconductor ZnO Nano-Rods Thin Film Grown on Silver Wire for Hemoglobin Biosensor Fabrication
Solid State Physics Department, Physics Division, National Research Centre (NRC), Dokki, Egypt
Solid State Physics Department, Physics Division, National Research Centre (NRC), Dokki, Egypt
Physics Department, Al-Azhar University, Cairo, Egypt
Physics Department, Al-Azhar University, Cairo, Egypt
Department of Science and Technology, Campus Norrköping, Linköping University, Norrköping, Sweden
Department of Science and Technology, Campus Norrköping, Linköping University, Norrköping, Sweden
- 1 Solid State Physics Department, Physics Division, National Research Centre (NRC), Dokki, Egypt
- 2 Solid State Physics Department, Physics Division, National Research Centre (NRC), Dokki, Egypt
- 3 Physics Department, Al-Azhar University, Cairo, Egypt
- 4 Physics Department, Al-Azhar University, Cairo, Egypt
- 5 Department of Science and Technology, Campus Norrköping, Linköping University, Norrköping, Sweden
- 6 Department of Science and Technology, Campus Norrköping, Linköping University, Norrköping, Sweden
New Journal of Glass and Ceramics·Volume 05 (2015)·Pages 9–15·Published 15 February 2015·DOI10.4236/njgc.2015.52002
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Abstract
Wurtzite hexagonal ZnO semiconductor nano-rods (NRs) thin films were grown on silicon substrates and silver wire with diameter equal 68 nm. Sol gel (SG) and aqueous chemical growth (ACG) methods by two steps of preparation (seed layers and nano-rod growth) are used for samples preparation. The structural and morphological properties are evaluated using X-ray diffraction (XRD) and scanning electron microscope (SEM). The proposed iron ion sensor has shown good linearity for a wide concentration range from 0.078 M/L to 0.26 M/L of iron ions. The results show that the electrode is highly sensitive to iron ions with a slope around 47.8 mV/decade with a regression coefficient R 2 = 0.96.
KeywordsZnO Nano-RodsThin FilmsSol-GelX-Ray DiffractionScanning Electron Microscope and Hemoglobin Biosensor
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