Thermoluminescence study of CaNa₂(SO₄)₂ phosphor doped with Eu³⁺ and synthesized by combustion method

Abstract

In the present study, the thermoluminescence (TL) properties of an Eu3+‐doped CaNa2(SO4)2 phosphor were studied. The Eu3+‐doped CaNa2(SO4)2 phosphor was synthesized using the combustion method. The samples were well crystallized in the monoclinic phase. The TL glow curve of the Eu3+‐doped CaNa2(SO4)2 phosphor showed a single prominent peak at around 210°C with showed linearity on increasing exposure. The response curve of the synthesized phosphor showed linearity in the range 500–7000 Gy. Trapping parameters of synthesized phosphors such as activation energy, frequency factor, and order of kinetics were calculated in the study. These trapping parameters were determined by different methods such as Chen’s peak method, the initial rise method, and Ilich’s method. Each characteristic of these outcomes demonstrated that the synthesized Eu3+‐doped CaNa2(SO4)2 phosphor had outstanding TL properties and might be valuable for TL dosimetry application.

Investigations of thermoluminescence characteristics of SrAlBO4:Eu3+ phosphors irradiated with gamma rays and carbon ion beam

“…A detailed discussion of the Chen's peak shape method has been already given by Parauha et al . and various other researchers [29–31, 33–35]. They are also reported formulas for calculated trapping parameters under different orders of kinetics.…”

“…The different orders of kinetics correspond to the various mechanisms involved in the TL process. A detailed discussion of the Chen's peak shape method has been already given by Parauha et al and various other researchers [29][30][31][33][34][35]. They are also reported formulas for calculated trapping parameters under different orders of kinetics.…”

Novel red colour emitting Ca0.995Mg2(SO4)3:0.5Eu2+ phosphor under ultraviolet, blue, and green excitation for plant growth LEDs

“…The low intensity bands in the region 700-500 cm À1 were attributed to the O-S-O stretching vibration and the S-S disulfide symmetry mode. [12,37,44]…”

“…[4,8,11,[32][33][34][35][36] Sulphate-based luminescent materials are important hosts because of their marked benefits such as good thermal stability, sufficient chemical strength, and efficient luminescence; their broad emission bands greatly limit the maximum achievable luminous efficacies of high-quality warm WLEDs and potential applications. [12,37] The luminescence properties of inorganic phosphors depend on rare earth ions or metal ions. Therefore, selection of the rare earth is an important step for the development of luminescent materials.…”