Study on the Preparation and Optical Properties of Ce3+ Doped GdAlO3 Nanoparticles by Co-Precipitation Method

Qi, Pengyuan; Wang, Gang; Li, Gang; Li, Shuai; Liu, Yang; Zhu, Pengfu

doi:10.3390/cryst15020126

Open AccessArticle

Study on the Preparation and Optical Properties of Ce³⁺ Doped GdAlO₃ Nanoparticles by Co-Precipitation Method

by

Pengyuan Qi

,

Gang Wang

,

Gang Li

^*,

Shuai Li

,

Yang Liu

and

Pengfu Zhu

Liaoning Provincial Engineering Research Center for High-Value Utilization of Magnesite, Yingkou Institute of Technology, Yingkou 115014, China

^*

Author to whom correspondence should be addressed.

Crystals 2025, 15(2), 126; https://doi.org/10.3390/cryst15020126

Submission received: 25 December 2024 / Revised: 17 January 2025 / Accepted: 20 January 2025 / Published: 24 January 2025

(This article belongs to the Section Inorganic Crystalline Materials)

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Abstract

Nanoparticles of GdAlO₃:Ce were synthesized with sodium dodecylbenzene sulfonate (SDBS) as the dispersant and ammonia as the precipitant by co-precipitation reaction to prepare precursors under different conditions. The phase composition of the precursors and the particle morphology were characterized by thermogravimetry-differential thermal analysis (TG-DTA), X-ray diffraction (XRD), and scanning electron microscope (SEM). The excitation and emission spectra of the resultant samples were analyzed using a photoluminescence spectroscope (PL). The results showed that the as-prepared, well-dispersed, nano-sized GdAlO₃:Ce powder displayed spherical morphology at the initial concentration of metallic salt in liquor of 0.3 mol/L; the synthesized temperature was 0 °C, and it was calcined at 1300 °C for 2 h. The relative intensity of the photoluminescence peak had the maximum value when the Ce³⁺ dopant content was 0.9 mol% (mole fraction). The concentration quench occurred when the Ce³⁺ dopant content exceeded 0.9 mol%, and the peak of the excitation spectrum appeared at a wavelength of 381 nm.

Keywords: GdAlO₃:Ce; nanoparticles; co-precipitation method; optical spectrum characteristics

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MDPI and ACS Style

Qi, P.; Wang, G.; Li, G.; Li, S.; Liu, Y.; Zhu, P. Study on the Preparation and Optical Properties of Ce³⁺ Doped GdAlO₃ Nanoparticles by Co-Precipitation Method. Crystals 2025, 15, 126. https://doi.org/10.3390/cryst15020126

AMA Style

Qi P, Wang G, Li G, Li S, Liu Y, Zhu P. Study on the Preparation and Optical Properties of Ce³⁺ Doped GdAlO₃ Nanoparticles by Co-Precipitation Method. Crystals. 2025; 15(2):126. https://doi.org/10.3390/cryst15020126

Chicago/Turabian Style

Qi, Pengyuan, Gang Wang, Gang Li, Shuai Li, Yang Liu, and Pengfu Zhu. 2025. "Study on the Preparation and Optical Properties of Ce³⁺ Doped GdAlO₃ Nanoparticles by Co-Precipitation Method" Crystals 15, no. 2: 126. https://doi.org/10.3390/cryst15020126

APA Style

Qi, P., Wang, G., Li, G., Li, S., Liu, Y., & Zhu, P. (2025). Study on the Preparation and Optical Properties of Ce³⁺ Doped GdAlO₃ Nanoparticles by Co-Precipitation Method. Crystals, 15(2), 126. https://doi.org/10.3390/cryst15020126

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Study on the Preparation and Optical Properties of Ce³⁺ Doped GdAlO₃ Nanoparticles by Co-Precipitation Method

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