Shandong Science ›› 2026, Vol. 39 ›› Issue (2): 74-88.doi: 10.3976/j.issn.1002-4026.2025128

• Optical Functional Materials and Catalytic Applications • Previous Articles     Next Articles

Research advances in ion-doped melilite-structured ABC3O7 luminescent materials

WANG Xupinga,b,c(), SHEN Xiaonaa, YANG Yuguoa,b,c,*()   

  1. a. Advanced Materials Institute; b. Shandong Key Laboratory of Silicon Carbide Material; c. Shandong Engineering Research Center of Advanced Optoelectronic Functional Materials and Devices, Qilu University of Technology (Shandong Academy of Science), Jinan 250014 China
  • Received:2025-10-24 Revised:2025-11-07 Published:2026-04-20 Online:2026-04-03

Abstract:

Melilite-structured compounds with the general formula ABC3O7—where A is an alkaline earth metal (e.g., Ca2+, Sr2+, or Ba2+), B is a trivalent rare-earth ion, and C is a trivalent main-group element (e.g., Ga3+ or Al3+)—represent an important class of inorganic functional materials. Owing to their stable crystal structure, tunable chemical composition, excellent physical and chemical stability, and multiple lattice sites available for activator ions, these materials have shown considerable potential in luminescence applications. This article provides a systematic review of recent advances in ion-doped ABC3O7-based luminescent materials. It highlights the characteristic features of the melilite-type crystal structure and presents a comprehensive summary of the luminescent properties, site occupancy behaviors, and concentration quenching effects of representative activator ions, including Eu3+, Tb3+, Dy3+, Mn2+, and Cr3+, within this host lattice. Additionally, the energy transfer mechanisms between sensitizers (e.g., Bi3+) and activator ions are thoroughly examined, and strategies for color tuning and performance enhancement via ion co-doping are discussed. Finally, current challenges and future research directions are outlined, providing theoretical insights and practical guidance for the rational design of high-performance melilite-structured luminescent materials.

Key words: melilite-structured compounds, luminescent materials, ion doping, energy transfer, performance regulation

CLC Number: 

  • TB383

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