Radioluminescence and scintillation properties of monocrystals of silicates of yttrium and rare earth elements

Kulesskii, A. P.; Korovkin, A. M.; Кружалов, А. В.; Viktorov, L. V.; Шульгин, Б. В.

doi:10.1007/bf00661887

Cited by 10 publications

(7 citation statements)

References 2 publications

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“…YBO 3 :Pr.-Y 2 O 3 was mixed with 2 mol-% excess H 3 BO 3 (Merck, ACS grade) and Pr 6 O 11 so that the final product contained 1% praseodymium as substituent for yttrium. The mixture was thoroughly crushed in an agate mortar under the addition of acetone.…”

Section: Methodsmentioning

confidence: 99%

“…[1][2][3][4] Moreover, it is one of the first UV emitting materials, which manifests up-conversion of blue radiation into the UV-C range. 5 Interest rose in UV-A and UV-B emitting luminescent materials after the introduction of low-pressure Hg discharge lamps that were developed as sun tan lamps in the middle of the 20 th century.…”

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confidence: 99%

“…15,16 We have slightly modified this method for determining the energy efficiency of the above mentioned UV phosphors. 3 (Bernd Kraft, 65%). The amount of Bi 2 O 3 was adjusted in order to reach a final dopant concentration of 0.7% as substituent for yttrium within the YPO 4 host.…”

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confidence: 99%

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Cathodoluminescence and Photoluminescence of YPO₄:Pr³⁺, Y₂SiO₅:Pr³⁺, YBO₃:Pr³⁺, and YPO₄:Bi³⁺

Broxtermann

Engelsen

Fern

et al. 2017

ECS J. Solid State Sci. Technol.

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Herein we describe the synthesis, characterization, and cathodoluminescence of the UV emitting phosphors YPO 4 :Pr 3+ , Y 2 SiO 5 :Pr 3+ , YBO 3 :Pr 3+ , and YPO 4 :Bi 3+ . These photoluminescent UV phosphors exhibited strong luminescence in the UV part of the electromagnetic spectrum when excited by electron bombardment. Spectra have been recorded between 210 and 650 nm at electron beam energies of 5, 10 and 15 keV. The energy efficiencies of YPO 4 :Pr 3+ , Y 2 SiO 5 :Pr 3+ , YBO 3 :Pr 3+ and YPO 4 :Bi 3+ in the UV range were 9.2%, 2.7%, 5.1%, and 7.2%, respectively at 15 keV. UV photoluminescence measurements were conducted using 160 nm excitation generated by combining a VUV monochromator with a deuterium lamp. The UV emitting phosphor Y 2 SiO 5 :Pr 3+ has attracted attention both because of its potential application as a UV tunable laser and also as a scintillator arising from its short decay time (of about 40 ns).1-4 Moreover, it is one of the first UV emitting materials, which manifests up-conversion of blue radiation into the UV-C range. 5Interest rose in UV-A and UV-B emitting luminescent materials after the introduction of low-pressure Hg discharge lamps that were developed as sun tan lamps in the middle of the 20 th century. 6 The early UV emitting phosphors were activated by Tl + , Pb 2+ , or Bi 3+ , while later Ce 3+ activated phosphors such as LaPO 4 :Ce and YPO 4 :Ce came into play due to their better stability and environmental compliance as they contained no hazardous elements.The development of phosphors emitting in the UV-C range was stimulated by the advent of efficient dielectric barrier Xe discharge lamps some decades ago. [7][8][9] At that time, some UV- have since become less interesting due to the toxic character of these materials. One of the most efficient UV-C emitting materials, which also has a rather high thermal quenching temperature, is YPO 4 :Bi .10 However a serious drawback with this material is the limited stability of Bi 3+ cations toward oxidation or reduction. This necessitated a search for efficient and long-term stable Pr 3+ activated materials, since it is thought that Pr 3+ can withstand the harsh conditions of VUV radiation and the electron bombardment inside an excimer discharge tube. The most efficient materials amongst the many, which have been published so far are YPO 4 :Pr, LaPO 4 :Pr, Y 2 SiO 5 :Pr, YBO 3 :Pr, Ca 9 Y(PO 4 ) 7 :Pr, LuBO 3 :Pr, Lu 2 SiO 5 :Pr and LuPO 4 :Pr. The later Lutetium containing compounds are also regarded as scintillators because of their high density.Xe excimer discharge lamps containing a UV-C phosphor for germicidal action and photochemical purposes have been developed by several groups 11-13 and lamp products containing YPO 4 :Nd, YPO 4 :Pr, YPO 4 :Bi, and LaPO 4 :Pr were introduced several years ago. Even though these lamps can achieve wall plug efficiency close to that of low-and medium-pressure Hg discharge lamps, their commercial success is rather moderate so far. The main reason for this observation is their lower long-term stabi...

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

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Cathodoluminescence and Photoluminescence of YPO₄:Pr³⁺, Y₂SiO₅:Pr³⁺, YBO₃:Pr³⁺, and YPO₄:Bi³⁺

Broxtermann

Engelsen

Fern

et al. 2017

ECS J. Solid State Sci. Technol.

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“…The features such as high light yield (LY), short scintillation decay time (∼40 ns), and large density (7.4 g/cm 3 ) inspired a study of this crystal as a fast high-energy radiation detector. A cheaper isostructural material, Y 2 SiO 5 :Ce (YSO:Ce), was studied even earlier, but the results were much less promising than in case of LSO:Ce (lower light yield, longer scintillation decay time, lower density [3,4]). …”

Section: Introductionmentioning

confidence: 99%

VUV spectroscopy and low temperature thermoluminescence of LSO:Ce and YSO:Ce

Drozdowski

Wojtowicz

Wiśniewski

et al. 2004

Journal of Alloys and Compounds

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“…An observed effective non-radiative energy transfer between the Ce 3+ and Tb 3+ ions in the Ce 3+ :Tb 3+ :Y 2 SiO 5 crystals and significant reducing of Ce 3+ decay time [11] were the basis of our growth experiments with Ce 3+ :Tb 3+ :Lu 2 SiO 5 crystals.…”

Section: Scintillation Crystal Of Ce 3+ :Tb 3+ :Lu 2 Siomentioning

confidence: 96%

Czochralski growth and characterisation of large Ce3+:Lu2SiO5 single crystals co-doped with Mg2+ or Ca2+ or Tb3+ for scintillators

Zavartsev

Koutovoi

Zagumennyĭ

2005

Journal of Crystal Growth

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Radioluminescence and scintillation properties of monocrystals of silicates of yttrium and rare earth elements

Cited by 10 publications

References 2 publications

Cathodoluminescence and Photoluminescence of YPO₄:Pr³⁺, Y₂SiO₅:Pr³⁺, YBO₃:Pr³⁺, and YPO₄:Bi³⁺

Cathodoluminescence and Photoluminescence of YPO₄:Pr³⁺, Y₂SiO₅:Pr³⁺, YBO₃:Pr³⁺, and YPO₄:Bi³⁺

VUV spectroscopy and low temperature thermoluminescence of LSO:Ce and YSO:Ce

Czochralski growth and characterisation of large Ce3+:Lu2SiO5 single crystals co-doped with Mg2+ or Ca2+ or Tb3+ for scintillators

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Radioluminescence and scintillation properties of monocrystals of silicates of yttrium and rare earth elements

Cited by 10 publications

References 2 publications

Cathodoluminescence and Photoluminescence of YPO4:Pr3+, Y2SiO5:Pr3+, YBO3:Pr3+, and YPO4:Bi3+

Cathodoluminescence and Photoluminescence of YPO4:Pr3+, Y2SiO5:Pr3+, YBO3:Pr3+, and YPO4:Bi3+

VUV spectroscopy and low temperature thermoluminescence of LSO:Ce and YSO:Ce

Czochralski growth and characterisation of large Ce3+:Lu2SiO5 single crystals co-doped with Mg2+ or Ca2+ or Tb3+ for scintillators

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Cathodoluminescence and Photoluminescence of YPO₄:Pr³⁺, Y₂SiO₅:Pr³⁺, YBO₃:Pr³⁺, and YPO₄:Bi³⁺

Cathodoluminescence and Photoluminescence of YPO₄:Pr³⁺, Y₂SiO₅:Pr³⁺, YBO₃:Pr³⁺, and YPO₄:Bi³⁺