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Updated: Jan 12, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Combustion Synthesis and Photoluminescence Properties of Dy3+Activated Li₂Sr.₂Al₂PO₄F₉ Phosphor for Solid-State
S A Fartode1, Anoop P Fartode2, Sonal P Tatte3
1Department of Physics, Yeshwantrao Chavan College of Engineering, Wanadogri, Nagpur, India.
Abstract:
This research focuses on the preparation and comprehensive characterization of Li₂Sr.₂Al₂PO₄F₉ phosphors doped with Dy3+ ions. The material was synthesized via combustion method utilizing urea as a fuel source. Structural and luminescence properties are investigated through X-ray diffraction and photoluminescence (PL) techniques. The PL excitation spectrum of Li₂Sr.₂Al₂PO₄F₉:Dy3+ revealed multiple excitation bands between 300 and 400 nm, attributed to 4f electronic transitions of Dy3+ ions. Upon excitation at 348 nm, the PL emission spectrum exhibited characteristic emissions at 478 nm (blue), corresponding to 4F₉/₂ → 6H₁₅/₂ transition, and at 571 nm (yellow), associated with the 4F₉/₂ → 6H₁₃/₂ transition of Dy3+.
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