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July 1, 2026Journal of the American Ceramic Society

Synthesis and Photoluminescence of Eu ³⁺ ‐Activated and Eu ³⁺ /Eu ²⁺ Co‐Activated Li ₄ Al ₄ B ₆ O ₁₇ Phosphors

Yanlin Huang Zihan Qiao Xifeng Yang Junyu Lv Donglei Wei Hyun Kyoung Yang

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Key Points

The aim is to explore the luminescence properties of Eu-doped Li4Al4B6O17 phosphors and understand the mechanisms involved. This includes examining the effects of Eu3+ and Eu2+ co-doping on luminescence efficiency and temperature stability.
Synthesis of Eu-doped and co-doped Li4Al4B6O17 using high-temperature solid-state reaction under varying atmospheres.
Characterization of phase purity, crystal structure, and elemental composition through various analysis techniques such as XPS.
Evaluation of luminescence properties under ultraviolet excitation, focusing on emission spectra and decay kinetics.
Eu3+-only sample shows a strong orange-red luminescence with an internal quantum efficiency of 37.5%.
Co-doped samples exhibit dual emissions from both Eu2+ and Eu3+, with a lower efficiency of 17.5% due to non-radiative losses.
Temperature-dependent studies reveal a thermal stability with an activation energy of approximately 0.40 eV for both types of emissions.

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Implication

Investigates luminescence in Eu3+-activated phosphors, indicating significant findings for rare-earth dopants.

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Cite This Study

Huang et al. (2026) studied this question.

synapsesocial.com/papers/6a48a57289561a0c2d78e0f7 https://doi.org/10.1111/jace.70974

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