Modification in structural,optical, morphological,and electrical properties of zinc oxide (ZnO) nanoparticles (NPs) by metal (Ni,Co) dopants for electronic device applications |
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| Affiliation: | 1. Shaanxi Key Laboratory for Advanced Energy Devices and Shaanxi Engineering Lab for Advanced Energy Technology, Xi’an 710119, China;2. Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi’an 710069, China;3. Institute of Chemical Sciences, University of Peshawar, Peshawar 25000, Pakistan;4. Department of Physics, Riphah International University Islamabad, 44000, Pakistan;5. Department of Physics, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan;6. College of Physics and Information Technology, Shaanxi Normal University, Xian 710069, Shaanxi, PR China;7. University of Science and Technology of China, Hefei, Anhui 230026, PR China;8. Faculty of Materials Science, Beijing University of Technology, Beijing 100124, PR China;9. Department of Chemistry College of Sciences, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;10. Laboratoire des matériaux et de l''environnement pour le développement durable LR18ES10, 9 Avenue Dr.Zoheir Sai, 1006 Tunis, Tunisia;11. Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia |
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| Abstract: | In the present work, Zinc Oxide (ZnO) nanoparticles (NPs) were synthesized by the chemical co-precipitation method using Zinc Chloride as the initial chemical, while Nickel and Cobalt chloride as dopants. Phase identification of metal (Ni, Co) doped Zinc Oxide nanoparticles (NPs) was observed using x-ray diffraction (XRD). The small lattice distortion or phase changes appeared due to shifting of diffraction angles peaks towards larger angle in ZnO are corresponded to metal (Ni, Co) dopant. The average crystallite size appears to decrement in NP size from 7.67 nm to 6.52 nm and 5.35 nm to 5.17 nm with increasing 5 % to 80 % of metal (Ni, Co) dopant respectively. The optical characteristics, including the absorption spectra of the prepared sample were observed through UV–Vis spectroscopy, Meanwhile SEM confirmed the observation of composition change in specimen with metal (Ni, Co) dopant concentration. The bandgap value was also found decrement 5.23 eV to 5.05 eV with increment of metal (Ni, Co) dopant concentration. The functional groups were measured by Fourier transformation infrared spectroscopy (FTIR). FTIR peaks found the metal (Ni, Co) doped ZnO with the vibration mode of (Zn2+ –O2?) ions due to the increment of dopant concentrations. Furthermore, electrical results show the ohmic behavior of prepared samples. These findings indicate the possibility of tuning optical, structural and electrical properties of metal (Ni, Co) doped ZnO with various dopant concentrations of Nickel and will have great potential to find application in optoelectronic devices. |
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| Keywords: | Ni,Co/ZnO Crystal Structural Microstructure UV FT-IR spectroscopy IV |
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