Facile synthesis and thermoluminescence properties of nano bio-ceramic β-Ca2P2O7:Dy phosphor irradiated with 75 meV C6+ ion beam

Abstract

Dy3+ doped β-Ca2P2O7 phosphor has been synthesized using wet chemical method. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis confirmed the formation of β-Ca2P2O7:Dy nano-phosphors. However, photoluminescence (PL) study was carried out to confirm the presence of dopant ion in the host matrix of β-Ca2P2O7:Dy material. Thermoluminescence (TL) glow curves of β-Ca2P2O7 were recorded for different concentrations of Dy3+ after exposure to various fluences of C6+ ion beam (75 meV). TL sensitivity of β-Ca2P2O7:Dy3+ (0.1 mol%) phosphor was 3.79 times more than commercially available CaSO4:Dy3+. 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-Ca2P2O7 nanoparticles along with high stability of TL glow curve makes this nanomaterial a good candidate for C6+ ion beam dosimetry.

Investigation of thermoluminescence and photoluminescence properties of Tb3+, Eu3+, and Dy3+ doped NaYF4 phosphors for dosimetric applications

“…The overlapping tracks result in a reduced number of trapped charge carriers and the fully occupied trapping and luminescence centers or limited available vacant traps do not confer extra TL and thus result in the occurrence of saturation. 51 This gives an explanation for the obtained linearity for NaYF 4 :Tb 3+ phosphor in the gamma dose range between 1 kGy to 25 kGy and the later saturation. The linear behavior exhibited by this phosphor system is expected to be useful in radiation monitoring and TL mapping.…”

“…Since the two neighboring tracks are largely distant, the charge carriers evading the tracks are prohibited by the inactive trapping centers or non-radiative competing centers (CC) in the intermediate region of tracks. 51,52 For that reason, the intensity of TL increases linearly with the increase in gamma irradiation dose. But, at further higher doses, the distance between neighboring tracks reduces, starts to fuse and overlap with each other.…”

Thermoluminescence dosimeter (TLD) studies of Ca10K(PO4)7:Dy phosphor for applications in radiation dosimetry

“…In this method, the precursors were taken in stoichiometric ratio. The wet chemical method is a simple method to prepare phosphor or nanomaterials [6,20]. The precursors such as Ca (NO 3 ).4H 2 O, potassium nitrate, and ammonium dihydrogen phosphate, all of the analytical grades purchased from Sigma Aldrich (99.99% pure), were taken in stoichiometric ratios and dissolved in a minimum quantity (5-7 mL) of double distilled water in separate beakers.…”

Nanobiomaterials: exploring mechanistic roles in combating microbial infections and cancer

“…1 ). When seen from the perspective of a material, Nano-biomaterials like nano-membranes, nano-apatite grains and nano-muscle fibres, can be thought of as a composite that makes up biological tissue [ 3 ]. The development of nanoparticles, nanofibers, nanocoating, and nanocomposites for use in biomedical applications has been made possible by the rapid expansion of nanotechnology.…”

“…From targeted drug delivery systems that navigate the intricate landscapes of the human body to smart nanosystems that respond dynamically to physiological cues, nanobiomaterials offer a versatile toolkit for precision medicine [ 3 , 4 ]. Understanding the intricate interplay between these materials and biological entities is pivotal in harnessing their full potential for therapeutic interventions.…”