The synthesis, characterization and photoluminescence properties of Pb2+-doped Na2Al2B2O7

Abstract

Na2-xPbxAl2B2O7 (0.0025 <= x <= 0.03) phosphors were synthesized at 850 degrees C for 6 h in air. The phase analyzes of all prepared borates were carried out using the powder XRD. The bond structure and the morphology formation of Na2Al2B2O7 was investigated by FTIR and SEM, respectively. The thermal analysis of Na2Al2B2O7 was studied using TG and DTA. At room temperature, a spectrofluorometer was used to examine the photoluminescence characteristics of the prepared phosphors. At 368 and 263 nm, respectively, the Na2Al2B2O7:Pb2+ emission and excitation bands were seen. For Na2-xPbxAl2B2O7, a thorough study was done on the relationship between emission intensity and Pb2+ concentration. Thus, the optimal Pb2+ concentration in Na2Al2B2O7 was observed to be 0.01 mol. The decay curve and lifetime of the Na199Pb001Al2B2O7 were investigated. Finally, utilizing the excitation band at 263 nm and the emission band at 368 nm, the Stokes shift of the prepared material Na2Al2B2O7:Pb2+ was determined to be 10849 cm(-1). As a result of this study, a new material that emits UVA radiation has been introduced to the literature.