Tổng hợp vật liệu bằng phương pháp phản ứng nổ và tính chất của LaPO4:Eu kích thước nanomet

Abstract

Eu (III)-doped LaPO₄ nanophosphors were prepared via combustion synthesis using urea as fuel and metal nitrates as precursor. Structures, morphologies, and photoluminescent properties of the LaPO₄:Eu were studied by X-ray diffraction, scanning electron microscopy, photoluminescent and excitation photoluminescent spectra. The average diameters for the phosphor particles are 5-20 nm. The effects of Eu(III) doping process and heating temperature on structure and optical properties of nanophosphors have been investigated. LaPO₄:Eu phosphors show the intense peak at 594 nm corresponding to the ⁵D₀-⁷F₁ transition of Eu (III) in inversion symmetry sites.