Highly Luminous N^3--Substituted Li₂MSiO_4-δN_2/3δ:Eu²⁺ (M = Ca, Sr, and Ba) for White NUV Light-Emitting Diodes.

ABSTRACT: The N^3--substituted Li₂MSiO₄:Eu²⁺ (M = Ca, Sr, and Ba) phosphors were systematically prepared and analyzed. Secondary-ion mass spectroscopy measurements revealed that the average N^3- contents are 0.003 for Ca, 0.009 for Sr, and 0.032 for Ba. Furthermore, the N^3- incorporation in the host lattices was corroborated by infrared and X-ray photoelectron spectroscopies. From the photoluminescence spectra of Li₂MSiO₄:Eu²⁺ (M = Ca, Sr, and Ba) phosphors before and after N^3- doping, it was verified that the enhanced emission intensity of the phosphors is most likely due to the N^3- doping. In Li₂MSiO₄:Eu²⁺ (M = Ca, Sr, and Ba) phosphors, the maximu

SUBMITTER: Kim D 

PROVIDER: S-EPMC6648572 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature