Improvement in Plastic Scintillator with Loading of BaFBr:Eu²⁺ Radioluminescence Phosphor

Rajakrishna, Kalvala; Dhanasekaran, A.; Yuvaraj, N.; Ajoy, K.C.; Venkatraman, B.; Jose, M.T.

doi:10.1109/tns.2021.3073871

Cited by 7 publications

(2 citation statements)

References 36 publications

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“…[ 18,28 ] The PL emission of composites films showed a gradual increase in intensity with the YAG:Ce phosphor loading in PS and maximum intensity was observed at 40 wt%. This result was in good agreement with the results of Kalvala Rajakrishna and colleagues [ 29 ] in PS loaded BaFBr:Eu 2+ . The PL properties could be attributed to an energy transfer that occurs from the molecular orbital levels of the polymer matrix to the luminescence centres of the nanophosphors.…”

Section: Resultssupporting

confidence: 92%

Optical and structural properties of composites films based on Ce³⁺‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene

et al. 2022

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In the present work, attempts have been made to prepare scintillating nanoparticle composite films of Ce 3+ -doped Y 3 Al 5 O 12 (YAG:Ce) embedded in a polystyrene (PS) polymer. A YAG:Ce phosphor has been previously synthesized using the sol-gel method. YAG:Ce-PS composite films of 250 ± 30 μm thickness were prepared using a solvent casting procedure with different PS/solvent concentration and a different mass ratio between nanoparticles of YAG:Ce and PS. X-ray diffraction analysis confirmed that the YAG:Ce powders were successfully prepared. Using thermogravimetric analyses and differential scanning calorimetry, we found that the glass transition temperature (Tg) and thermal degradation were shifted to higher temperatures for composite films relative to pure PS. Photoluminescence showed the yellow emission of the Ce 3+ -doped YAG phosphors, which was attributed to the 5d!4f transition of Ce 3+ ion and the intensity of the emissions changed with the mass ratio of the YAG:Ce nanoparticles incorporated in the polymer and with the concentration of the polymer solution.

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Section: Resultssupporting

confidence: 92%

Optical and structural properties of composites films based on Ce³⁺‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene

et al. 2022

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“…It is widely used in FED (field emissive display). Most studies about using ZnO and ZnS(Ag) as scintillators have been limited to alpha radiation detection [6][7][8].…”

Section: Materials Selectionmentioning

confidence: 99%

Performance of phosphor embedded plastic scintillators through thin film coating

Rajakrishna¹,

Dhanasekaran²,

Yuvaraj³

et al. 2022

J. Inst.

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A novel method of loading phosphor materials in a plastic scintillator (here on PS) is developed to improve light output. In the present work, phosphor materials ZnS(Ag) and ZnO are loaded into the PS medium through the thin-film coating, and the effect of these phosphors on radiation detection is investigated. PS are prepared using polystyrene as the base, xylene as the solvent, PPO and POPOP as primary and secondary flours. ZnS(Ag) and ZnO phosphors are added to the PS in powder form to investigate their effect on luminescence and scintillation output. The thickness of the prepared scintillators is ∼250 ± 30 µm. Photoluminescence, radioluminescence, luminescence lifetime and their detection efficiencies for the typical alpha, beta, gamma and neutron sources are selected as the tools for investigation, and the synthesized scintillators’ performance is studied. The results obtained showed a notable increase in the performance and the outcomes are compared with commercially available PS.

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Flexible and luminescent polymer nanocomposite films (YPO4:Pr3+/ polystyrene): Investigation of structural, morphological and photoluminescence properties for solid-state lighting applications

Kahouadji,

Mebarki,

Benharrat

et al. 2023

Optical Materials

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Improvement in Plastic Scintillator with Loading of BaFBr:Eu²⁺ Radioluminescence Phosphor

Cited by 7 publications

References 36 publications

Optical and structural properties of composites films based on Ce³⁺‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene

Optical and structural properties of composites films based on Ce³⁺‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene

Performance of phosphor embedded plastic scintillators through thin film coating

Flexible and luminescent polymer nanocomposite films (YPO4:Pr3+/ polystyrene): Investigation of structural, morphological and photoluminescence properties for solid-state lighting applications

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Improvement in Plastic Scintillator with Loading of BaFBr:Eu²⁺ Radioluminescence Phosphor

Cited by 7 publications

References 36 publications

Optical and structural properties of composites films based on Ce3+‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene

Optical and structural properties of composites films based on Ce3+‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene

Performance of phosphor embedded plastic scintillators through thin film coating

Flexible and luminescent polymer nanocomposite films (YPO4:Pr3+/ polystyrene): Investigation of structural, morphological and photoluminescence properties for solid-state lighting applications

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Optical and structural properties of composites films based on Ce³⁺‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene

Optical and structural properties of composites films based on Ce³⁺‐doped yttrium aluminium garnet nanoparticles embedded in polystyrene