Ca₃Lu(AlO)₃(BO₃)₄ : Sm³⁺: a novel red-emitting phosphor with high colour purity for NUV-based warm white LEDs.

ABSTRACT: In the present work, we described the synthesis of a novel phosphor Ca₃Lu(AlO)₃(BO₃)₄ (CLAB) activated with Sm³⁺ via high temperature solid-state reaction. X-ray diffraction (XRD), FTIR spectra, diffuse reflection spectra, photoluminescence (PL) spectra and fluorescence decay curves were used to characterize the as-synthesized samples. The morphology and chemical composition were measured by field emission scanning electron microscope (FE-SEM) and X-ray energy diffraction spectroscopy (EDAX). The structure refinements from XRD data revealed the isostructural arrangement of CLAB : Sm³⁺ to gaudefroyite with a hexagonal P6₃/m space group in which the AlO₆ octahedral chains are intercon

SUBMITTER: Khan WU 

PROVIDER: S-EPMC9091692 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature