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Synthesis and Photoluminescence Properties of Pb2+-Doped K2Al2B2O7.
- Source :
-
Journal of Applied Spectroscopy . Jul2024, Vol. 91 Issue 3, p645-649. 5p. - Publication Year :
- 2024
-
Abstract
- Ultraviolet-emitting phosphors with the formula K2–xPbxAl2B2O7 (0.0025 ≤ x ≤ 0.03) were synthesized at 850°C 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 brand-new UVA radiation-emitting material has been established. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOTOLUMINESCENCE
*X-ray powder diffraction
*STOKES shift
*PHOSPHORS
Subjects
Details
- Language :
- English
- ISSN :
- 00219037
- Volume :
- 91
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 178528740
- Full Text :
- https://doi.org/10.1007/s10812-024-01766-0