Facile synthesis and thermoluminescence properties of nano bio-ceramic β-Ca2P2O7:Dy phosphor irradiated with 75 meV C6+ ion beam
Karan Kumar Gupta, S . J. Dhoble, A. Krupski
Abstract
Abstract Dy 3+ doped β-Ca 2 P 2 O 7 phosphor has been synthesized using wet chemical method. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis confirmed the formation of β-Ca 2 P 2 O 7 :Dy nano-phosphors. However, photoluminescence (PL) study was carried out to confirm the presence of dopant ion in the host matrix of β-Ca 2 P 2 O 7 :Dy material. Thermoluminescence (TL) glow curves of β-Ca 2 P 2 O 7 were recorded for different concentrations of Dy 3+ after exposure to various fluences of C 6+ ion beam (75 meV). TL sensitivity of β-Ca 2 P 2 O 7 :Dy 3+ (0.1 mol%) phosphor was 3.79 times more than commercially available CaSO 4 :Dy 3+ . TRIM code based on the Monte Carlo simulation was used to calculate the absorbed doses, ion range and main energy loss. Glow curve de-convolution (GCD) method was used to determine the number of TL peaks and their trapping parameters. The wide linear response of β-Ca 2 P 2 O 7 nanoparticles along with high stability of TL glow curve makes this nanomaterial a good candidate for C 6+ ion beam dosimetry.