Synthesis and Photoluminescence Dynamics of Europium (III) and Terbium (III) Co-doped of GdSrAl3O7 Color-Tunable Nanophosphors

Open Access

Year : 2025 | Volume : 13 | Special Issue 01 | Page : 1069 1082
    By

    Deepika Dhaterwal,

  • Mahesh Matoria,

  • Annu Dalal,

  • Surender Kumar,

  • Sonika Singh,

  1. Research Scholar, Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana, India
  2. Research Scholar, Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana, India
  3. Assistant Professor, Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana, India
  4. Professor, Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana, India
  5. Assistant Professor, Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana, India

Abstract

A series of Europium (III) and Terbium (III) co-doped GdSrAl3O7 color-tunable nanophosphors were synthesized by a simplistic, streamlined and self-propagating, urea-assisted solution combustion synthesis process. The structural and luminescence characteristics of synthesized Eu3+/Tb3+ co-doped Gadolinium Strontium Aluminate nanocrystalline phosphors were validated using powder X- ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X- ray analysis (EDAX), and photoluminescence spectra studies. The morphological studies revealed that the synthesized co-doped phosphor crystals seemed to be agglomerated spherical- shaped porous nanocrystalline particles with interconnected boundaries. Through diffuse reflectance (DR) spectroscopy, the optical band gap values for nanocrystalline phosphors were also studied. The simultaneous presence of these two rare earth ions may provide specific luminous assets, including efficient energy transfer along with controlled emissions. The detailed analysis of the photoluminescence excitation (PLE) and photoluminescence emission (PL) spectra of Europium (III) and Terbium (III) co-doped GdSrAl3O7 revealed that Tb3+ effectually sensitized Eu3+ ion and that the energy transfer could be precisely controlled to achieve color- tunable emission by varying the proportions of doped ions. The non- radiant energy loss i.e. concentration quenching phenomenon was also probed in detail. Additionally, by using their emission data, colorimetric traits including Commission International de I’Eclairage 1931 color coordinates, color purity (CP), and correlated color temperature (CCT) were also obtained. The photometric properties of developed nanocrystalline co-doped phosphor materials introduce new prospects and layout potentials for upgraded luminous materials that can be used in field emission displays, solid- state technologies, multicolor display applications and a variety of illumination strategies.

Keywords: solution combustion, nanocrystalline, phosphors, photoluminescence, color coordinates.

[This article belongs to Special Issue under section in Journal of Polymer and Composites (jopc)]

How to cite this article:
Deepika Dhaterwal, Mahesh Matoria, Annu Dalal, Surender Kumar, Sonika Singh. Synthesis and Photoluminescence Dynamics of Europium (III) and Terbium (III) Co-doped of GdSrAl3O7 Color-Tunable Nanophosphors. Journal of Polymer and Composites. 2024; 13(01):1069-1082.
How to cite this URL:
Deepika Dhaterwal, Mahesh Matoria, Annu Dalal, Surender Kumar, Sonika Singh. Synthesis and Photoluminescence Dynamics of Europium (III) and Terbium (III) Co-doped of GdSrAl3O7 Color-Tunable Nanophosphors. Journal of Polymer and Composites. 2024; 13(01):1069-1082. Available from: https://journals.stmjournals.com/jopc/article=2024/view=188652


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Special Issue Open Access Original Research
Volume 13
Special Issue 01
Received 05/08/2024
Accepted 14/11/2024
Published 10/12/2024
Publication Time 127 Days
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