D.H. Kim, P. Puspitasari, K. Park
Advances in white LED technologies have intensified the demand for novel inorganic phosphors with enhanced emission properties. In this work, we present, for the first time, a systematic strategy for the discovery of novel phosphor materials, including: (i) identification of potential host oxides from the IMA mineral lists and the ICSD, (ii) confirmation of the structural suitability of BaCa12(SiO4)4(PO4)2OF2 via Rietveld refinement analysis, and (iii) systematic characterization of the crystal structure and photoluminescent properties of BaCa12(SiO4)4(PO4)2OF2:M3+ (M = Ce, Tb) phosphors. The host framework, containing BaO6, Ca(1)O6F, Ca(2)O6F, PO4, Si(1)O4, and Si(2)O4 polyhedra, serves as a promising host lattice, providing versatile crystallographic sites for activator substitution. Ce3+-doped phosphors exhibit blue emission, while Tb3+-doped phosphors show intense green emission, both originating from characteristic 5d → 4f and 4f → 4f transitions, respectively. The newly discovered Ce3+-doped and Tb3+-doped BaCa12(SiO4)4(PO4)2OF2 phosphors exhibit strong potential as blue and green emitters, respectively, for white LED applications. © 2026 John Wiley & Sons Ltd.
Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, South Korea; Nanomaterials Engineering Research Center, Universitas Negeri Malang, Malang, Indonesia
