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Synthesis and characterization of (Al, Co) co-doped ZnO for electronic applications

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Abstract

Synthesis of three different ratios of Alx=0.05, 0.10, 0.15 Cox=0.05, 0.10, 0.15ZnOx=0.95, 0.90, 0.85 powders were prepared using sol gel route. Structural and electronic properties of the synthesized material were investigated using X-ray diffraction and scanning electron microscope, vibrating sample magnetometer (VSM), ultraviolet (UV) spectroscopy and dielectric studies. Characterization results reveal that the particle size is of the range 4.84 nm to the maximum size of 19.86 nm with a morphological structures representing rounded and honeycomb shapes at different doping ratios. VSM results of the prepared samples reveal the ferromagnetic nature with the hysteresis curve representation. The optical band gap has been calculated as 3.1–3.8 nm from the UV spectroscopy results. Conductivity of the samples was calculated from dielectric constant and conductivity increases with increasing doping ratios.

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Acknowledgements

The authors thank the Management of Saveetha University for the continuous motivation to carry out the research work and for extending all necessary support. We would also like to extend our regards to Sophisticated Analytical Instruments Facility (SAIF), IIT Madras and Indira Gandhi Centre for Atomic Research (IGCAR) for carrying out the material characterizations.

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Authors and Affiliations

  1. Department of Electronics and Communication, Saveetha School of Engineering, Saveetha University, Thandalam, Chennai, India

    M. Ravindiran

  2. Amrita School of Engineering, Amrita University, Vengal Village, Chennai, India

    P. Shankar

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  1. M. Ravindiran
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  2. P. Shankar
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Correspondence to M. Ravindiran.

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Ravindiran, M., Shankar, P. Synthesis and characterization of (Al, Co) co-doped ZnO for electronic applications. J Mater Sci: Mater Electron 28, 4229–4238 (2017). https://doi.org/10.1007/s10854-016-6045-5

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  • DOI: https://doi.org/10.1007/s10854-016-6045-5

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