Effect of Dy2O3 impurities on the physical, optical and thermoluminescence properties of lithium borate glass

Mhareb, M.H.A.; Hashim, Ahmad Hariza; Ghoshal, Sib Krishna; Alajerami, Y.S.M.; Bqoor, M.J.; Hamdan, A.I.; Saleh, Muneer Aziz; Karim, Muhammad Khalis Abdul

doi:10.1016/j.jlumin.2016.05.002

Cited by 85 publications

(20 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This study complements our previous study in 2016 . In the previous study, we determined the different characteristics of LB:Dy, these characteristics included structure, physical, optical and some dosimetric properties (glow curve and linearity).…”

Section: Introductionsupporting

confidence: 57%

See 1 more Smart Citation

Dosimetric features and kinetic parameters of a glass system dosimeter

Mhareb

Alajerami²,

Alqahtani

et al. 2019

Luminescence

Self Cite

View full text Add to dashboard Cite

Lithium borate (LB) glasses doped with dysprosium oxide (Dy 2 O 3 ) have been prepared by utilizing the conventional melt-quench technique. The prepared glass samples were exposed to 60 Co to check their dosimetric features and kinetic parameters.These features involve glow curves, annealing, fading, reproducibility, minimum detectable dose (MDD), and effective atomic number (Z eff ). Kinetic parameters including the frequency factors and activation energy were also determined using three methods (glow curve analysis, initial rise, and peak shape method) and were thoroughly interpreted. In addition, the incorporation of Dy impurities into LB enhanced the thermoluminescence sensitivity~170 times. The glow from LB:Dy appeared as a single prominent peak at 190 C. The best annealing proceeding was obtained at 300 C for 30 min. Signal stability was reported for a period of 1 and 3 months with a reduction of 26% and 31%, respectively. The proposed glass samples showed promising dosimeter properties that can be recommended for personal radiation monitoring. K E Y W O R D Sdosimetric features, kinetic parameters, lithium borate

show abstract

Section: Introductionsupporting

confidence: 57%

“…In a previous study we reported several characteristics (physical, structural, optical and some dosimetric properties) related to the current sample . In the present study, we explored in much more detail the dosimetric features and kinetic parameters of the proposed glass dosimeters.…”

Section: Resultsmentioning

confidence: 90%

Dosimetric features and kinetic parameters of a glass system dosimeter

Mhareb

Alajerami²,

Alqahtani

et al. 2019

Luminescence

Self Cite

View full text Add to dashboard Cite

show abstract

“…The significant increment in field strength values is, therefore, due to the appearance of strong linkages in the glass matrix between Dy 3+ and B ions. [10]. It is noted from this table that the boron-boron separation ‹dB-B› decreases with an increase in the Dy2O3 concentration due to the stretching force of the binds in the glass network.…”

Section: Resultsmentioning

confidence: 95%

“…It is important to study the luminescence of Dy 3+ ions in level 4 F 9/2 because it occurs in visible and NIR regions [8,9]. Usually, transitions of Dy 3+ ion exhibit in yellow or blue regions of 4 F 9/2 → 6 H 13/2 (electric dipole) and 4 F 9/2 → 6 H 15/2 (magnetic dipole), respectively [10,11]. It has been established that the transition of 4 F 9/2 → 6 H 13/2 is hypersensitive, and therefore, its intensity depends heavily upon the existence of the host, while the intensity of transition of 4 F 9/2 → 6 H 15/2 is not quite sensitive to host conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Dy 3+ has been acknowledged for its white light production, which is appropriate at an acceptable yellow to blue (Y/B) intensity ratio. Luminescent materials doped by Dy 3+ ions are therefore commonly used both in glasses and phosphors to generate white light [5,6,10]. Moreover, Dy 3+ ions have a various interesting characteristics such as high mechanical strength, high sensitivity and high thermal neutron absorption.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of Dy2O3 Substitution on the Physical, Structural and Optical Properties of Lithium–Aluminium–Borate Glass System

et al. 2020

View full text Add to dashboard Cite

In this study, a series of Li2O-Al2O3-B2O3 glasses doped with various concentrations of Dy2O3 (where x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0 mol%) were prepared by using a conventional melt-quenching technique. The structural, physical and optical properties of the glasses were examined by utilising a variety of techniques instance, X-ray diffraction (XRD), UV–Vis-NIR spectrometer, Fourier transform infrared (FTIR) and photoluminescence (PL). The XRD spectra demonstrate the amorphous phase of all glasses. Furthermore, the UV-vis-NIR spectrometers have registered optical absorption spectra a numbers of peaks which exist at 1703, 1271, 1095, 902, 841, 802, 669, 458, 393 and 352 nm congruous to the transitions from the ground of state (6H15/2) to different excited states, 6H11/2, 6F11/2 + 6H9/2, 6F9/2 + 6H7/2, 6F7/2, 6F5/2, 6F3/2, 4F9/2, 4I15/2, 4F7/2 and 6P7/2, respectively. The spectra of emission exhibit two strong emanation bands at 481 nm and 575 nm in the visible region, which correspond to the transitions 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2. All prepared glass samples doped with Dy2O3 show an increase in the emission intensity with an increase in the concentration of Dy3+. Based on the obtained results, the aforementioned glass samples may have possible applications, such as optical sensor and laser applications.

show abstract

Thermoluminescence properties of Eu‐doped and Eu/Dy‐codoped Sr₂Al₂SiO₇ phosphors

Jadhaw¹,

Sonwane²,

Gour

et al. 2017

Luminescence

View full text Add to dashboard Cite

We report the thermoluminescence properties of Sr Al SiO :Eu and Sr Al SiO :Eu Dy phosphors. These phosphors were prepared by a high-temperature solid-state reaction method. The prepared phosphors were characterized by X-ray diffraction. A 254 nm source was used for ultraviolet (UV) irradiation and a Co source was used for γ-irradiation. The effect of heating rate and UV-exposure were examined. The thermoluminescence temperature shifts to higher values with increasing heating rate and thermoluminescence intensity increases with increasing UV exposure time. The trapping parameters such as activation energy (E), order of kinetics and frequency factor (s) were calculated by peak shape method. The effect of γ- and UV-irradiation on thermoluminescence studies was also examined.

show abstract

Effect of Dy2O3 impurities on the physical, optical and thermoluminescence properties of lithium borate glass

Cited by 85 publications

References 29 publications

Dosimetric features and kinetic parameters of a glass system dosimeter

Dosimetric features and kinetic parameters of a glass system dosimeter

Impact of Dy2O3 Substitution on the Physical, Structural and Optical Properties of Lithium–Aluminium–Borate Glass System

Thermoluminescence properties of Eu‐doped and Eu/Dy‐codoped Sr₂Al₂SiO₇ phosphors

Contact Info

Product

Resources

About

Effect of Dy2O3 impurities on the physical, optical and thermoluminescence properties of lithium borate glass

Cited by 85 publications

References 29 publications

Dosimetric features and kinetic parameters of a glass system dosimeter

Dosimetric features and kinetic parameters of a glass system dosimeter

Impact of Dy2O3 Substitution on the Physical, Structural and Optical Properties of Lithium–Aluminium–Borate Glass System

Thermoluminescence properties of Eu‐doped and Eu/Dy‐codoped Sr2Al2SiO7 phosphors

Contact Info

Product

Resources

About

Thermoluminescence properties of Eu‐doped and Eu/Dy‐codoped Sr₂Al₂SiO₇ phosphors