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Vol. 37 No. 11 (2025): Vol 37 Issue 11, 2025

Copyright (c) 2025 R.M. Vimalathithan, R. SatheeshKumar, G.Suresh, D.Balaji, S.Balasaraswathy, V.Ponnusamy

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Development of Samarium and Cerium Doped Yttrium Orthoborate Phosphor for near UV LED Application

https://doi.org/10.14233/ajchem.2025.34566
R.M. Vimalathithan
Department of Physics, Salem Sowdeswari College (Government Aided), Salem-636010, India
https://orcid.org/0000-0002-3310-7985
R. Satheesh Kumar
Department of Physics, C.K. College of Engineering and Technology, Cuddalore-608003, India
https://orcid.org/0000-0002-3277-8568
G. Suresh
Department of Humanities and Sciences/Physics Division, Centre for Nanotechnology Research, Aarupadai Veedu Institute of Technology, Vinayaka Mission’s Research Foundation (D.U), Chennai-603104, India
https://orcid.org/0000-0002-2525-1231
D. Balaji
Centre for Nanoscience and Nanotechnology Sathyabama Institute of Science and Technology, Chennai-600119, India
https://orcid.org/0000-0001-7289-5614
S. Balasaraswathy
Department of Physics, BNM Institute of Technology, Bangalore-560070, India
https://orcid.org/0000-0002-4166-743X
V. Ponnusamy
Solid-State Luminescence Lab, Department of Applied Sciences and Humanities, MIT Campus, Anna University, Chennai-600044, India
https://orcid.org/0000-0001-5768-6531

Corresponding Author(s) : R. Satheesh Kumar

satheshagas@gmail.com

Asian Journal of Chemistry, Vol. 37 No. 11 (2025): Vol 37 Issue 11, 2025

Abstract

Inorganic phosphors are integral to light-emitting diode (LED) technology, enabling the generation of specific colours and white light for a variety of applications. In this study, yttrium orthoborate (YBO3), a chemically stable and thermally robust host lattice, was successfully synthesized via a conventional solid-state reaction method. The synthesized material was systematically characterized using powder X-ray diffraction (XRD) to confirm phase purity and crystalline structure. Photoluminescence (PL) spectroscopy was employed to evaluate the photoluminescence properties of the phosphor. The results suggest that YBO3 is a promising host matrix for rare-earth doping in phosphor-converted LED systems. Lanthanide ions such as samarium (Sm3+) and cerium (Ce3+) were incorporated into the YBO3 host lattice to investigate their influence on the PL properties. PL measurements revealed that the doped phosphors exhibit strong excitation in the near-ultraviolet (UV) region. The resulting emission bands were observed within the visible spectrum. The optimal doping concentrations of Sm3+ and Ce3+ were determined based on the maximum emission intensity. These findings suggest that Sm3+- and Ce3+-doped YBO3 phosphors are promising candidates for near-UV excited white LED applications.

Keywords

Yttrium borate Orthorhombic phase with Cmcm space group Samarium Cerium
(1)
Vimalathithan, R.; Kumar, R. S.; Suresh, G.; Balaji, D.; Balasaraswathy, S.; Ponnusamy, V. Development of Samarium and Cerium Doped Yttrium Orthoborate Phosphor for Near UV LED Application. ajc 2025, 37, 2753-2758.
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