Effect of Aluminum (Al) Concentration on the Thermoelectric Performance of Zinc Aluminum Selenium (ZnAlSe) Alloy
| Autor: | Khalid Mahmood, Salma Ikram, Mohammad Yusuf, K. Javaid, Hafiz T. Ali, Khurram Mehboob, M. Isram, Jolly Jacob, Nowshad Amin |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Scanning electron microscope Alloy Analytical chemistry chemistry.chemical_element Zinc engineering.material Condensed Matter Physics Electronic Optical and Magnetic Materials Crystal symbols.namesake chemistry Seebeck coefficient Thermoelectric effect engineering symbols Fourier transform infrared spectroscopy Raman spectroscopy |
| Zdroj: | Journal of Superconductivity and Novel Magnetism. 34:2199-2206 |
| ISSN: | 1557-1947 1557-1939 |
| DOI: | 10.1007/s10948-021-05961-4 |
| Popis: | In this manuscript, we have studied the effect of Al concentration on the thermoelectric performance of ZnAlSe alloy. ZnAlSe alloy with different concentrations of Al (0%, 1%, 2%, 3%, and 4%) were synthesized by simple solid-state reaction method. Seebeck data suggested an improvement in Seebeck coefficient value from 38 to 99 μV/°C with the increase of Al atom concentration which leads to a higher power factor of 4.2 × 10−4 Wm−1 K−2. This improvement in Seebeck coefficient and power factor is related to the enhancement in mobility of the carriers by the degradation of the metallic phases with the addition of Al atoms. The verification of metallic phases and crystal degradation is confirmed by X-Ray diffraction (XRD). Some additional measurements such Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy were also performed to strengthen our argument. Scanning electron microscopy (SEM) images shows the spherically shaped morphology. |
| Databáze: | OpenAIRE |
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