Polyhedron Transformation toward Stable Narrow‐Band Green Phosphors for Wide‐Color‐Gamut Liquid Crystal Display

A robust and stable narrow‐band green emitter is recognized as a key enabler for wide‐color‐gamut liquid crystal display (LCD) backlights. Herein, an emerging rare earth silicate phosphor, RbNa(Li 3 SiO 4 ) 2 :Eu 2+ (RN:Eu 2+ ) with exceptional optical properties and excellent thermal stability, is reported. The resulting RN:Eu 2+ phosphor presents a narrow green emission band centered at 523 nm with a full width at half maximum of 41 nm and...