Eu2+‐doped AlN—SiC solid‐solution phosphors: Synthesis and cathodoluminescence properties

Abstract— Eu and Si co‐doped AlN was reported to be an interesting blue phosphor for field‐emission displays (FEDs). In this paper, SiC instead of Si³N⁴ was used as the Si source. Eu²⁺‐doped AlN—SiC phosphors were prepared by firing the powder mixtures of AlN, SiC, and Eu²O³ at 2050°C for 2 hours under 1‐MPa N². Solid solutions between AlN and SiC were formed in a wide range, promoting the solution of Eu²⁺ in AlN. The phosphors showed intense blue emissions under electron‐beam excitation, indicative of potential phosphors for FEDs.