The College of Education for Pure Sciences at the University of Basra in the Department of Chemistry organized a scientific lecture on the use of fluorescent phosphorous materials in solid-state lighting
The lecture presented by the student (Abbas Fadel Kazem) included
Preparation of Potassium fluorosilicate +4K2SiF6:Mn doped with manganese ion by precipitation method and it was diagnosed by XRD and IR spectroscopy. TG and study of electronic transitions of the prepared compound by PL photofluorometry, where two broad emission peaks appeared in the red region within the range of 650-600 nm. The morphology of the particles of the prepared compound was studied by scanning electron microscope (SEM), and the proportion of the constituent elements of the compound was calculated by X-ray energy dispersal spectroscopy (EDX). The industrial application of the prepared material was also carried out in the manufacture of WLED after mixing it with the commercial yellow phosphor +3YAG:Ce and basing them on an InGaN thin film with a blue wavelength of 450nm, and the resulting light was Warm light at a temperature of .4558 k
Objectives of the lecture
Preparation of red fluorescent fluorescent materials Potassium fluorosilicate doped with manganese ion K2SiF6:Mn4+ by co-precipitation method by finding suitable working method and adjusting reaction conditions. Industrial application of the prepared phosphorous materials in the manufacture of white LEDs and study of their properties.