Red Luminescent Material based on NaLi3SiO4 Matrix Doped with Mn2+ and its Site Occupancy and Luminescence Properties

Qiue Chen

doi:10.6919/ICJE.202504_11(4).0028

Authors

Qiue Chen

DOI:

https://doi.org/10.6919/ICJE.202504_11(4).0028

Keywords:

Mn²⁺ Doping; Red Luminescent Material; Optical Properties; UCr4C4-type Silicate.

Abstract

This paper reports a red luminescent material based on a NaLi₃SiO₄ matrix doped with Mn²⁺ and explores its preparation method and optical properties. The results indicate that Mn²⁺ ions occupy the octahedral coordination site of Na⁺ ions and exhibit red light emission at 677 nm to 698 nm under 428 nm excitation. As the Mn²⁺ doping concentration increases, the emission intensity is enhanced, and the emission wavelength shifts to the red region. The material is synthesized using a high-temperature solid-phase method, sintered at 850°C under a reducing atmosphere for 4 hours. This material exhibits excellent chemical stability and optical properties, making it promising for applications in LED lighting and display technology.

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