Synthesis of white emitting Dy-doped Ga?O? phosphors via hydrothermal method
Gallium oxide (Ga?O?), a wide band gap material, serves as an effective host for phosphors, with emission colour tunable through doping with suitable rare- earth elements. The present study investigates the influence of dysprosium doping on Ga?O?s luminescence characteristics. Samples were synthesized via a hydrothermal method and subjected to calcination at various temperatures 600C, 750C, 900C, 1050C. These samples were characterized using X-ray diffraction, UVvisible spectroscopy, Raman spectroscopy, and photoluminescence spectroscopy. The photoluminescence spectra of the samples were analysed to identify the defect states. The CIE (Commission Internationale de lEclairage) coordinates were calculated and chromaticity diagram was plotted to determine the overall luminescence colour emission. To assess potential phosphorescence properties, decay plot was analysed and average lifetime was calculated. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.
Raphael, Rakhy; Arya, P.N.; Shaji, Sadasivan; Anila, E.I.
Journal of Materials Science: Materials in Electronics;Volume;36;Issue;22;Article No.;1401;
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https://doi.org/10.1007/s10854-025-15503-6 https://www.scopus.com/pages/publications/105012731900?origin=resultslist
Raphael R., Optoelectronics and Nanomaterials Research Laboratory, Department of Physics, Union Christian College, Kerala, Aluva, 683102, India; Arya P.N., Optoelectronics and Nanomaterials Research Laboratory, Department of Physics, Union Christian College, Kerala, Aluva, 683102, India; Shaji S., Facultad de Ingenier Mecica y Eltrica, Universidad Automa de Nuevo Le, Nuevo Le, SanNicol de los Garza, Mexico; Anila E.I., Optoelectronics and Nanomaterials Research Laboratory, Department of Physics, Union Christian College, Kerala, Aluva, 683102, India, Department of Physics and Electronics, Christ University, Bengaluru, 560029, India