Synthesis Characterization and Photoluminescence Properties of Rare earth Doped with Calcium Silicate Nanophosphor

Abstract

The combustion synthesized CaSiO3 nanomaterials are studied using various newlinecharacterization techniques. The synthesized nanomaterials were thoroughly newlineinvestigated using powder X-ray diffraction (PXRD), Fourier transforms infrared newline(FTIR) spectroscopy, UV-Vis spectroscopy, scanning electron microscopy (SEM), newlinetransmission electron microscopy (TEM), high-resolution TEM (HRTEM), and newlinePhotoluminescence (PL) analysis. The enhancement in the properties of the newlineCaSiO3were achieved through doing process. Different, dopants were chosen such as newlineCe3+ newline,Dy3+ newline,Sm3+andEu3+into the CaSiO3matrix to improve its physical properties. newlineDifferent mole percentage of Ce3+ impurities were doped into the CaSiO3 newlinenanomaterials and detailed investigation is performed to understand the combined newlineactivity of the nanomaterials. The doped nanomaterials were thoroughly studied using newlinedifferent characterization techniques such as PXRD, SEM,TEM, FTIR and PL newlinemeasurements.The structural and morphological changes observed in the materials newlinewere investigated and reported. The Ce3+doped CaSiO3 nanoparticles revealed newlineemission at 480 nm and 510nm owing to de-excitation of 5d-4f transitions. newlineThe host material was further incorporated with Sm3+ impurities and the newlinethoroughly studied the physical and structural changes. The materials revealed newlineexcellent emission at 596 nm and could be interpreted due to 4G5/2 and#8594; newline4G7/2 transition. newlineThe Commission Internationale de eclairage analysis were also performed in newlineunderstand the emission properties. newlineThere is a detailed investigation is carried to synthesize Eu3+ doped and codoped with Dy3+ CaSiO3nanophosphors. The materials were subjected to different newlinecharacterization techniques to understand the physical and material characteristics. newlineThe impact of the dopant and co-dopant effects on the luminescence properties were newlinestudied for varied dopant concentrations. The effect of different concentrations of newlineDy3+ ions co-doping on the luminescence intensity of CaSiO3 samples were studied newline