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Study on Optical and Magnetic Properties of Zno:Ag Nanograins by La and Y Codoping Using Solution Combustion Method

V. Padmavathy*, S. Sankar**

*-** Department of Physics, Madras Institute of Technology, Anna University, Chennai, Tamil Nadu, India.

Periodicity:April - June'2021
DOI : https://doi.org/10.26634/jms.9.1.18176

Abstract

Transition and rare earth codoped ZnO semiconductors finds greater importance in advanced functional materials due to their unique and versatile properties. La and Y codoped ZnO:Ag nanograins were synthesized using solution combustion method. The synthesized ZnO:Ag nanograins were annealed for 5 hours at 1100 °C. The structural, morphological, optical and magnetic properties have been investigated. X-ray diffraction analysis showed high intense diffraction peaks patterns which represent the high crystalline quality of synthesized nanograins and the emergence of face centered cubic phase of metallic Ag at (1 0 1) preferred orientation for silver doped ZnO samples. The Scanning Electron Microscopy (SEM) visualized the surface morphology of the title nanograins. The optical properties of the synthesized nanograins are studied and the presence of atomic vibrational modes of bonded molecules has been confirmed using Fourier-transform infrared (FT-IR) spectral analysis. The vibrating sample magnetometer (VSM) studies are performed to analyse the magnetic behaviour of the nanograins. Room temperature magnetization measurements of the rare earth codoped ZnO:Ag samples featured a weak hysteresis loops in M-H curve and a well ordered paramagnetic structure for silver doped samples. The squareness ratio has been estimated from M-H loop to check the quality of the prepared ZnO samples. The study revealed that the transition and rare earth codoped ZnO nanograins are promising material suitable for opto-electronic quenching devices.

Keywords

Optical Properties, Magnetic Properties, ZnO:Ag Nanograins, Rare Earth Codoping, Solution Combustion Method.

How to Cite this Article?

Padmavathy, V., and Sankar, S. (2021). Study on Optical and Magnetic Properties of Zno:Ag Nanograins by La and Y Codoping Using Solution Combustion Method. i-manager's Journal on Material Science, 9(1), 32-37. https://doi.org/10.26634/jms.9.1.18176

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