Synthesis of Phosphors based on Yttrium compounds and study of their optical characteristics

Abstract

newline v newline newline newline newline newline newline Abstract newlineThe abbreviation Ln is commonly used to refer to the lanthanide elements newlineThe optical properties of lanthanides stem from their partial filling of the newline4f-shell; in particular, even in the presence of a solid surrounding the newlinelanthanide ion, the 4f electrons are highly confined to the atom, and the newlineoptical transitions within the 4f manifold retain a significant amount of newlineatomic-like character. Consequently, they display intense narrow-band newlineluminescence over a significant portion of the visible and near-infrared newlinespectrum. Synthesis of Yttrium compounds and study of its optical newlinecharacteristics were done in this research work. newlinePrepared Yttrium Borate compounds Ba3Y(BO3)3, K3YB6O12 and newlineK3Y0.95-xCe0.05TbxB6O12 were tested for its application in different field as newlinephosphor. A phosphor thus produced was studied for various photo- newlineluminescent properties and lifetime. Depending on its properties it can be newlineused for various applications in different fields. newlineLuminescent Yttrium Borate materials Ba6Y2(BO3)6 , K3YB6O12 and Ce, newlineTb co-doped were successfully synthesized using high temperature solid newlinestate reaction method. Prepared samples were studied in details for their newlineoptical properties. PL absorption and emission spectra were recorded. It newlinewas found out that these prepared Yttrium Borate compounds have newlinesimilar benefits as that of the commercial phosphors and can be used in newlinedifferent display applications. With the advancement of Luminescent newlinematerial technology, these materials are used in so many applications newlinestarting from display technology, lighting, Medical field skin treatment newlinelamps, as sensor material, scintillation technology, and Laser technology.