Citation: Xuewei BA, Cheng CHENG, Huaikang ZHANG, Deqing ZHANG, Shuhua LI. Preparation and luminescent performance of Sr_1-xZrSi₂O₇∶xDy³⁺ phosphor with high thermal stability[J]. Chinese Journal of Inorganic Chemistry, ;2025, 41(2): 357-364. doi: 10.11862/CJIC.20240096 shu

Preparation and luminescent performance of Sr_1-xZrSi₂O₇∶xDy³⁺ phosphor with high thermal stability

School of Materials Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, China

Corresponding author: Xuewei BA, bxw03@sina.com
Received Date: 26 March 2024
Revised Date: 8 December 2024

Figures(8)

Sr_1-xZrSi₂O₇∶xDy³⁺ phosphors were prepared by using the high-temperature solid-state method. The crystal structure, microscopic morphology, luminescence performance, and thermal stability were studied by X-ray diffractometer, scanning electron microscope, and spectrophotometer, respectively. The results indicate that SrZrSi₂O₇ has a monoclinic structure and Sr²⁺ ions are partially occupied by Dy³⁺ ions. The crystal structure is not affected evidently by doping. Sr_1-xZrSi₂O₇∶xDy³⁺ phosphors can be excited by near-ultraviolet light. Under 353 nm radiation, the phosphors generate blue light (493 nm) and orange-red light (581 nm) emission peaks, and they can be attributed to the electron transition from ⁴F_9/2 to ⁶H_15/2 and ⁶H_13/2 energy level transitions, respectively. The quenching concentration of Dy³⁺ ions is 0.03 and the quenching mechanism belongs to dipole-dipole interaction. The emission intensity of Dy³⁺ ions was kept at 83% when the temperature increased to 150 ℃. The electronic traps and the structural rigidity of SrZrSi₂O₇ contribute to the excellent thermal stability of the luminescent materials.
- Sr_1-xZrSi₂O₇∶xDy³⁺,
- phosphor,
- thermal stability,
- concentration quenching
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Preparation and luminescent performance of Sr1-xZrSi2O7∶xDy3+ phosphor with high thermal stability

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通讯作者: 陈斌, bchen63@163.com

Preparation and luminescent performance of Sr_1-xZrSi₂O₇∶xDy³⁺ phosphor with high thermal stability