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Synthesis and Photoluminescence Properties of Pb2+ Doped K2A2B2O7
Abstract
Ultraviolet-emitting phosphors with the formula K2–xPbxAl2B2O7 (0.0025 ≤ x ≤ 0.03) were synthesized at 850ºC for 6 h in air. The powder X-ray diffraction technique was used to analyze the phases of all prepared borates. The FTIR technique was used to examine the bond structure of K2Al2B2O7. At room temperature, a spectrofluorometer was used to examine the photoluminescence characteristics of the prepared phosphors. K2Al2B2O7:Pb2+ was found to have emission and excitation bands at 373 and 271 nm, respectively. An extensive investigation was conducted on the correlation between emission intensity and Pb2+ content for K2–xPbxAl2B2O7. Consequently, 0.01 mol Pb2+ was found to be the optimal concentration in K2Al2B2O7. Eventually, it was found that the Stokes shift of the prepared material K2Al2B2O7:Pb2+ is 10,090 cm−1 using the excitation band at 271 nm and the emission band at 373 nm. As a result of this investigation, a brandnew UVA radiation-emitting material has been established.
About the Author
İ. Pekgözlü
Karabuk University
Turkey
Turkey
Faculty of Engineering, Department of Environmental Engineering,
Karabük
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Review
For citations:
Pekgözlü İ. Synthesis and Photoluminescence Properties of Pb2+ Doped K2A2B2O7. Zhurnal Prikladnoii Spektroskopii. 2024;91(3):463.
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