Citation: Yan ZHAO, Xiaokang JIANG, Zhonghui LI, Jiaxu WANG, Hengwei ZHOU, Hai GUO. Preparation and fluorescence properties of Eu³⁺-doped CaLaGaO₄ red-emitting phosphors[J]. Chinese Journal of Inorganic Chemistry, ;2024, 40(10): 1861-1868. doi: 10.11862/CJIC.20240242 shu

Preparation and fluorescence properties of Eu³⁺-doped CaLaGaO₄ red-emitting phosphors

Yan ZHAO ¹ ,
Xiaokang JIANG ¹ ,
Zhonghui LI ¹ ,
Jiaxu WANG ¹ ,
Hengwei ZHOU ^1,, ,
Hai GUO ^2,,

1.
Condensed Phase Transition and Microstructure Laboratory, College of Physics Science and Technology, Yili Normal University, Yining, Xinjiang 835000, China
2.
Department of Physics, Zhejiang Normal University, Jinhua, Zhejiang 321004, China

Corresponding author: Hengwei ZHOU, zhw33221@163.com Hai GUO, ghh@zjnu.cn
Received Date: 27 June 2024
Revised Date: 4 September 2024

Figures(9)

A series of Eu³⁺-doped CaLaGaO₄ red-emitting phosphors with different concentrations were prepared via the high-temperature solid phase method. The results indicate that the obtained phosphors can be effectively pumped by a 392 nm near-ultraviolet light. The Eu³⁺-doped CaLaGaO₄ phosphor displayed the characteristic transitions of Eu³⁺ with the strongest emission at 609 nm, originating from ⁵D₀→⁷F₂ transition and the luminescence intensity reached its maximum when the concentration of Eu³⁺ reached 0.3. In addition, the phosphor demonstrated a remarkable color purity value of 96.3% with CIE coordinates (0.613, 0.359) lying closer to the ideal red color CIE coordinates (0.670, 0.330). Furthermore, the photoluminescence emission intensity maintained 75% at 498 K compared to 298 K due to the thermal quenching effect, showcasing excellent thermal stability with an activation energy of 0.151 3 eV.
- high-temperature solid phase,
- CaLaGaO₄,
- red-emitting phosphor,
- high thermal stability
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Preparation and fluorescence properties of Eu3+-doped CaLaGaO4 red-emitting phosphors

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Preparation and fluorescence properties of Eu³⁺-doped CaLaGaO₄ red-emitting phosphors