Learning from a Mineral Structure toward an Ultra‐Narrow‐Band Blue‐Emitting Silicate Phosphor RbNa₃(Li₃SiO₄)₄:Eu²⁺

Learning from natural mineral structures is an efficient way to develop potential host lattices for applications in phosphor converted (pc)LEDs. A narrow‐band blue‐emitting silicate phosphor, RbNa 3 (Li 3 SiO 4 ) 4 :Eu 2+ (RNLSO:Eu 2+ ), was derived from the UCr 4 C 4 ‐type mineral model. The broad excitation spectrum (320–440 nm) indicates this phosphor can be well matched with the near ultraviolet (n‐UV) LED chip. Owing to the UCr 4 C 4 ‐type...