1. A novel UV-emitting phosphor: LiSr4(BO3)3: Pb2+.
- Author
-
Pekgözlü, İlhan
- Subjects
- *
PHOSPHORS , *ULTRAVIOLET radiation , *LITHIUM compounds , *METAL ions , *DOPED semiconductors , *LIGHT emitting diodes , *SELF-propagating high-temperature synthesis , *LEAD compounds - Abstract
Abstract: Pure and Pb2+ doped LiSr4(BO3)3 materials were prepared by a solution combustion synthesis method. The phase analysis of all synthesized materials were determined using the powder XRD. The synthesized materials were investigated using spectrofluorometer at room temperature. The excitation and emission bands of LiSr4(BO3)3: Pb2+ were observed at 284 and 328nm, respectively. The dependence of the emission intensity on the Pb2+ concentration for the LiSr4(BO3)3 were studied in detail. It was observed that the concentration quenching of Pb2+ in LiSr4(BO3)3 is 0.005mol. The Stokes shifts of LiSr4(BO3)3: Pb2+ phosphor was calculated to be 4723cm–1. [Copyright &y& Elsevier]
- Published
- 2013
- Full Text
- View/download PDF