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The structural and dilute magnetic properties of (Co, Li) co-doped-ZnO semiconductor nanoparticles

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Abstract

The structural, dielectric, and dilute magnetic properties measurements were carried out for the (Co, Li) co-doped-ZnO nanoparticles. It was found that the dielectric constant (εr), dielectric loss (ε″) and ac electrical conductivity (σAC) are strongly exhibited dependence behavior. The εr and ε″ values were decreased with the increase in frequency as well as increase in Li co-dopant concentration. It was also found that the εr and ε″ were decreased while the σAC were increased with doping contents. The highest ferromagnetic behavior was found in 4% Li-co-doped sample. These results demonstrate that co-doped specimens have excellent dielectric, magnetic and electrical conductivities compared to previously reported studies. Such type of materials satisfy its applications in high frequency and spintronic-based devices.

Graphical abstract

A frequency dependence behavior of dielectric constant (εr), dielectric loss (ε″) and ac electrical conductivity (σAC). The εr and ε″ values were decreased with the increase in frequency, as well as increase in Li co-dopant concentration. It was also found that the εr and ε″ were decreased while the σAC were increased. The generation of any defects ((positive, negative, or neutral) or oxygen vacancies) with an increase in Li co-doping results in a decrease in εr and a system disorder. The number of dipoles will decrease due to their recombination, resulting in a decrease in the orientational polarization and a decrease in εr.

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Acknowledgments

The author gratefully acknowledges the research funding from the Deanship of Scientific Research at King Khalid University for funding this work through research groups program under grant number R.G.P 1/196/41.

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Authors and Affiliations

  1. College of Physics and Optoelectronics, Shenzhen University, Shenzhen, 518000, China

    Rajwali Khan

  2. Department of Chemical Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia

    Mohammed Ilyas Khan, Mohammed Khaloufa Almesfer & Abubakr Elkhaleefa

  3. Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia

    Ismat Hassan Ali

  4. Department of Mathematics, University of Lakki Marwat, Lakki Marwat, 28420, Khyber Pakhtunkhwa, Pakistan

    Asad Ullah

  5. Department of Physic, University of Lakki Marwat, Lakki Marwat, 28420, Khyber Pakhtunkhwa, Pakistan

    Rajwali Khan, Nasir Rahman & Mohammad Sohail

  6. Department of Chemical Sciences, University of Lakki Marwat, Lakki Marwat, 28420, Khyber Pakhtunkhwa, Pakistan

    Abid Ali Khan

  7. Department of Physic, Abdul Wali Khan University, Mardan, 23200, Khyber Pakhtunkhwa, Pakistan

    Aurangzeb Khan

  8. University of Lakki Marwat, Lakki Marwat, 28420, Khyber Pakhtunkhwa, Pakistan

    Aurangzeb Khan

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  1. Rajwali Khan
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  2. Mohammed Ilyas Khan
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  3. Mohammed Khaloufa Almesfer
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  5. Ismat Hassan Ali
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  9. Abid Ali Khan
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  10. Aurangzeb Khan
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Correspondence to Rajwali Khan.

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Khan, R., Khan, M.I., Almesfer, M.K. et al. The structural and dilute magnetic properties of (Co, Li) co-doped-ZnO semiconductor nanoparticles. MRS Communications 12, 154–159 (2022). https://doi.org/10.1557/s43579-022-00153-0

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  • DOI: https://doi.org/10.1557/s43579-022-00153-0

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