1. Thermoluminescence characteristics of rare-earth-doped LiCaBO3 phosphor
- Author
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Jiang, L.H., Zhang, Y.L., Li, C.Y., Pang, R., Hao, J.Q., and Su, Q.
- Subjects
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THERMOLUMINESCENCE , *RARE earth metal spectra , *LITHIUM compounds , *THERMOLUMINESCENCE dosimetry , *PHOSPHORS , *METAL complexes , *CHEMICAL reactions , *SOLID state chemistry - Abstract
Abstract: LiCaBO3 was synthesized by high-temperature solid-state reaction. The influence of different rare earth dopants, i.e. Dy3+, Tb3+, Tm3+ and Ce3+, on thermoluminescence (TL) of LiCaBO3 phosphor was discussed. We studied the TL properties and some dosimetric characteristics of Ce3+-activated LiCaBO3 phosphor in detail. The effect of the concentration of Ce3+ on TL was investigated, the result of which showed that the optimum Ce3+ concentration was 1mol%. The TL kinetic parameters of LiCaBO3:0.01Ce3+ were studied by computer glow curve deconvolution (CGCD) method. The three-dimensional (3D) TL emission spectra were also studied, peaking at 431 and 474nm due to the characteristic transition of Ce3+. We also studied the linearity, annealing condition, reproducibility, fading and different heating rate of the LiCaBO3:0.01Ce3+ phosphor. [Copyright &y& Elsevier]
- Published
- 2008
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