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Volume 44 All articles Published: 3 February 2021 Article ID 0013
Structural and optical studies of cerium doped gadolinium oxide phosphor
J S REVATHY N S CHITRA PRIYA K SANDHYA DEEPTHI N RAJENDRAN
This research aims to study the influence of variation of doping concentration on various properties of Ce$^{3+}$ doped Gd$_2$O$_3$ phosphor. The phosphors (Gd$_{1-x}$Ce$_x$)$_2$O$_3$ ($0 \leq x \leq 0.15$) were successfully synthesized by the solution combustion method. The structural and optical properties of the prepared phosphors were studied. Rietveld refinement confirms the formation of the cubic phase. Fourier transform infrared spectra further confirm the formation of the phosphor. It is found that an enhancement in doping concentration of Ce$^{3+}$ results in the expansion of the crystal lattice, leading to a reduction in crystallite size as well as in the optical band gap. Photoluminescence emission spectra are studied, and the exact emission colour is confirmed using 1931 Commission Internationale de l’Eclairage (CIE) chromaticitycoordinates. The prepared phosphor exhibits bluish green emission corresponding to 5d–4f transitions of the trivalent cerium ion and can be used as a promising candidate in optical display applications and LED applications.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Bulletin of Materials Science | News
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
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Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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