Luminescence of (YxGd3−x)(AlyGa5−y)O12:Ce and (LuxGd3−x)(AlyGa5−y)O12:Ce Radiation-Synthesized Ceramics

Tulegenova, Aida; Lisitsyn, Victor; Nogaibekova, Gulnur; Nemkayeva, Renata; Markhabayeva, Aiymkul

doi:10.3390/ceramics8030112

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Luminescence of (Y_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce and (Lu_xGd_3−x)(AlyGa_5−y)O₁₂:Ce Radiation-Synthesized Ceramics

by

Aida Tulegenova

^1,2,*

,

Victor Lisitsyn

³

,

Gulnur Nogaibekova

^1,2

,

Renata Nemkayeva

²

and

Aiymkul Markhabayeva

^1,2

¹

Institute of Applied Sciences & Information Technologies, Almaty 050042, Kazakhstan

²

Department of Solid State Physics and New Materials Technology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan

³

Department of Materials Science, Engineering School, National Research Tomsk Polytechnic University, Tomsk 634050, Russia

^*

Author to whom correspondence should be addressed.

Ceramics 2025, 8(3), 112; https://doi.org/10.3390/ceramics8030112

Submission received: 13 June 2025 / Revised: 28 August 2025 / Accepted: 28 August 2025 / Published: 5 September 2025

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Abstract

(Y_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce and (Lu_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce ceramics were synthesized for the first time by direct exposure of a powerful electron flux to a mixture of the corresponding oxide components. Five-component ceramics were obtained from oxide powders of Y₂O₃, Lu₂O₃, Gd₂O₃, Al₂O₃, Ga₂O₃, and Ce₂O₃ in less than 1 s, without the use of any additional reagents or process stimulants. The average productivity of the synthesis process was approximately 5 g/s. The reaction yield, defined as the mass ratio of the synthesized ceramic to the initial mixture, ranged from 94% to 99%. The synthesized ceramics exhibit photoluminescence when excited by radiation in the 340–450 nm spectral range. The position of the luminescence bands depends on the specific composition, with the emission maxima located within the 525–560 nm range. It is suggested that under high radiation power density, the element exchange rate between the particles of the initial materials is governed by the formation of an ion–electron plasma.

Keywords: luminescence; radiation synthesis; ceramics; power density; high entropy ceramics; synthesis optimization

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MDPI and ACS Style

Tulegenova, A.; Lisitsyn, V.; Nogaibekova, G.; Nemkayeva, R.; Markhabayeva, A. Luminescence of (Y_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce and (Lu_xGd_3−x)(AlyGa_5−y)O₁₂:Ce Radiation-Synthesized Ceramics. Ceramics 2025, 8, 112. https://doi.org/10.3390/ceramics8030112

AMA Style

Tulegenova A, Lisitsyn V, Nogaibekova G, Nemkayeva R, Markhabayeva A. Luminescence of (Y_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce and (Lu_xGd_3−x)(AlyGa_5−y)O₁₂:Ce Radiation-Synthesized Ceramics. Ceramics. 2025; 8(3):112. https://doi.org/10.3390/ceramics8030112

Chicago/Turabian Style

Tulegenova, Aida, Victor Lisitsyn, Gulnur Nogaibekova, Renata Nemkayeva, and Aiymkul Markhabayeva. 2025. "Luminescence of (Y_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce and (Lu_xGd_3−x)(AlyGa_5−y)O₁₂:Ce Radiation-Synthesized Ceramics" Ceramics 8, no. 3: 112. https://doi.org/10.3390/ceramics8030112

APA Style

Tulegenova, A., Lisitsyn, V., Nogaibekova, G., Nemkayeva, R., & Markhabayeva, A. (2025). Luminescence of (Y_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce and (Lu_xGd_3−x)(AlyGa_5−y)O₁₂:Ce Radiation-Synthesized Ceramics. Ceramics, 8(3), 112. https://doi.org/10.3390/ceramics8030112

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Luminescence of (Y_xGd_3−x)(Al_yGa_5−y)O₁₂:Ce and (Lu_xGd_3−x)(AlyGa_5−y)O₁₂:Ce Radiation-Synthesized Ceramics

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