1. Synthesis and photoluminescence properties of Pb2+ doped Ba2Be2B2O7.
- Author
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Pekgözlü, İlhan
- Subjects
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LEAD compounds synthesis , *PHOTOLUMINESCENCE , *BARIUM compounds , *STOKES shift , *SELF-propagating high-temperature synthesis , *X-ray diffraction , *METAL ions , *DOPED semiconductors - Abstract
Pure and Pb 2+ doped Ba 2 Be 2 B 2 O 7 materials were prepared by a solution combustion synthesis method. The phase analysis of all synthesized materials was carried out using the powder XRD. The synthesized phosphors were investigated using spectrofluorometer at room temperature. The excitation and emission bands of Ba 2 Be 2 B 2 O 7 :Pb 2+ were observed at 284 and 396 nm, respectively. The dependence of the emission intensity on the Pb 2+ concentration for the Ba 2 Be 2 B 2 O 7 was studied in detail. It was observed that the concentration quenching of Pb 2+ in Ba 2 Be 2 B 2 O 7 is 0.04 mol. The Stokes shifts of Ba 2 Be 2 B 2 O 7 :Pb 2+ phosphor were calculated to be 9959 cm −1 . [ABSTRACT FROM AUTHOR]
- Published
- 2015
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