Sol–Gel Synthesis of SrAl4O7 and Defect-Related Luminescence Properties

Abstract

Single phase of monoclinic SrAl₄O₇ is synthesized by sol–gel process at a markedly lower temperature as compared to conventional solid-state reaction. The sol–gel derived samples were characterized by thermal gravimetric analysis (TGA), X-ray powder diffraction (XRD) analysis, scanning electron microscope (SEM) and spectrofluorometer. The XRD analysis shows that the strontium aluminate has the monoclinic (α-SrA₂) structure. It was demonstrated that the PL emission was obtained at 395 nm, 510 nm and 800 nm corresponding to the blue, green and IR region of the spectrum, respectively.

Keywords: SrAl₄O₇, nanomaterial, sol–gel, photoluminescnce, X-ray powder diffraction

Cite this Article

Jisha VT, Suresh G. Sol-gel synthesis of SrAl₄O₇ and defect-related luminescence properties. Journal of Nanoscience, Nanoengineering and Applications. 2015; 5(2): 16-19p