Fabrication and properties of Eu:Lu2O3 transparent ceramics for X-ray radiation detectors

Xie, Weifeng; Wang, Jing; Cao, Maoqing; Hu, Zhijuan; Feng, Yagang; Chen, Xiaopu; Jiang, Nan; Dai, Jihong; Shi, Yun; Babin, V.; Mihóková, E.; Nikl, M.; Jiang, Li

doi:10.1016/j.optmat.2018.04.029

Cited by 21 publications

(8 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The composites with mechanically strong, highly thermally conducting and transparent diamond matrix opens a way to use this novel diamond material as photo‐ and X‐ray luminescent screens (scintillators) capable to withstand high photon fluxes, especially for monitoring/imaging synchrotrons and free‐electron lasers beams. [ 220–222 ]…”

Section: Emerging Color Centers In Diamondmentioning

confidence: 99%

Tailoring of Typical Color Centers in Diamond for Photonics

et al. 2020

View full text Add to dashboard Cite

On the demand of single‐photon entangled light sources and high‐sensitivity probes in the fields of quantum information processing, weak magnetic field detection and biosensing, the nitrogen vacancy (NV) color center is very attractive and has been deeply and intensively studied, due to its convenience of spin initialization, operation, and optical readout combined with long coherence time in the ambient environment. Although the application prospect is promising, there are still some problems to be solved before fully exerting its characteristic performance, including enhancement of emission of NV centers in certain charge state (NV− or NV0), obtaining indistinguishable photons, and improving of collecting efficiency for the photons. Herein, the research progress in these issues is reviewed and commented on to help researchers grasp the current trends. In addition, the development of emerging color centers, such as germanium vacancy defects, and rare‐earth dopants, with great potential for various applications, are also briefly surveyed.

show abstract

Section: Emerging Color Centers In Diamondmentioning

confidence: 99%

Tailoring of Typical Color Centers in Diamond for Photonics

et al. 2020

View full text Add to dashboard Cite

show abstract

“…22−24 Although Lu 2 O 3 :Eu 3+ high-resolution static X-ray imaging, there still remains an unsolved issue on fabricating afterglow-suppressed Lu 2 O 3 :Eu 3+ -based large-sized screens for dynamic digital radiographic imaging. 22,25 We can imagine that it should be put first to unravel the afterglow mechanism of Lu 2 O 3 :Eu 3+ nanoscintillators. 26,27 In this paper, Eu 3+ -doped Lu 2 O 3 nanoscintillators with an average size of ∼225 nm were successfully synthesized by a coprecipitation method.…”

Section: Introductionmentioning

confidence: 99%

“…For digital radiographic imaging, the suppressed afterglow is expected . However, for lanthanide-doped fluoride nanoscintillators, such as NaY(Gd, Lu)F 4 , it is difficult to suppress their strong afterglow due to the generation of traps (defects) during the preparation process or/and X-ray irradiation. ,− Compared to lanthanide-doped fluorides, lanthanide-doped oxides will create fewer defects under X-ray irradiation and show higher radiation and humidity resistance. , Among oxides, many efforts have been focused on the preparation and scintillation property of Lu 2 O 3 :Eu 3+ materials due to the emission wavelength of Eu 3+ ions upon X-ray excitation perfectly matching the optimum spectral sensitivity range of electronic optical sensors, including CMOS, CCD, and Si photodiodes (spectral matching factors are above 0.8). − Although Lu 2 O 3 :Eu 3+ ceramic has been employed to realize high-resolution static X-ray imaging, there still remains an unsolved issue on fabricating afterglow-suppressed Lu 2 O 3 :Eu 3+ -based large-sized screens for dynamic digital radiographic imaging. , We can imagine that it should be put first to unravel the afterglow mechanism of Lu 2 O 3 :Eu 3+ nanoscintillators. , …”

Section: Introductionmentioning

confidence: 99%

Afterglow-Suppressed Lu₂O₃:Eu³⁺ Nanoscintillators for High-Resolution and Dynamic Digital Radiographic Imaging

et al. 2022

View full text Add to dashboard Cite

Lu 2(1−x) Eu 2x O 3 nanoscintillators (x = 0.005, 0.01, 0.03, 0.05, 0.07, and 0.10) with red emission were synthesized by a coprecipitation method. It is found that their photo-and radioluminescence intensities increase with increasing Eu 3+ concentration until x = 0.05. According to their concentrationdependent luminescence intensity ratios (I 610 (C 2 )/I 582 (S 6 )), the existing energy transfer from Eu 3+ (S 6 ) (occupying S 6 sites) to Eu 3+ (C 2 ) (occupying C 2 sites) can be confirmed. Based on the spectral data and density functional theory (DFT) calculations, the origin of Lu 2 O 3 :Eu 3+ persistent luminescence at low concentration might be related to the tunneling processes between Eu 3+ (occupying C 2 and S 6 sites) and oxygen interstitials (O i × ). After dispersing afterglow-suppressed Lu 2 O 3 :Eu 3+ nanoscintillators into polymethyl methacrylate (PMMA) polymer-acetone solution, flexible PMMA-Lu 2 O 3 :Eu 3+ composite films with high thermal stability and radiation resistance were fabricated by a doctor blade method. As the flexible composite film was used as an imaging plate, static X-ray images with high spatial resolution (5.5 lp/mm) under an extremely low dose of ∼1.1 μGy air can be acquired. When a watch with a moving second hand was used as an object, the dynamic X-ray imaging can be realized under a dose rate of 55 μGy air •s −1 . Our results demonstrate that Lu 2 O 3 :Eu 3+ nanoscintillators can be regarded as candidate materials for dynamic digital radiographic imaging.

show abstract

“…Since addition of suitable amount of sulfate ions in the coprecipitation process could effectively produce yttria powders with low agglomeration and high sinterability, the method has been widely adopted. [17][18][19][20][21][22] Worth of mentioning that using coprecipitated nanopowders with sulfate ions as the dispersant, Liu et al 21 fabricated 5 at.% Yb:Lu 2 O 3 laser ceramics and achieved laser oscillation of the laser ceramics, Dai et al 19 reported the fabrication of 5 at.% Yb:Sc 2 O 3 laser ceramics, and Xie et al 22 fabricated 5 at.% Eu:Lu 2 O 3 transparent ceramics for X-ray detection. However, we note that there is a serious drawback of using sulfate ions as a dispersant.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of yttria nanopowder with poly acrylic acid as dispersant for highly transparent yttria ceramics

Wang

et al. 2021

J Am Ceram Soc.

View full text Add to dashboard Cite

Highly pure and well-dispersed yttria nanocrystalline powders were synthesized with a modified coprecipitation method that uses mixed ammonium hydroxidecarbonate solution as the precipitant and poly acrylic acid (PAA) as the dispersant. Comparing with the yttria powders synthesized using the same route but without PAA dispersant, the PAA-assisted powders exhibit lower level of agglomeration and better sinterability. Sintering trajectories of the powders with and without PAA dispersant were investigated. Y 2 O 3 ceramics sintered with the PAAassisted powders exhibited smaller grain size, homogeneous microstructure, and higher in-line optical transmittance. The result suggests that the polymerassisted coprecipitation could be used to synthesize yttria nanopowders for fabricating high optical quality transparent ceramics.

show abstract

Fabrication and properties of Eu:Lu2O3 transparent ceramics for X-ray radiation detectors

Cited by 21 publications

References 35 publications

Tailoring of Typical Color Centers in Diamond for Photonics

Tailoring of Typical Color Centers in Diamond for Photonics

Afterglow-Suppressed Lu₂O₃:Eu³⁺ Nanoscintillators for High-Resolution and Dynamic Digital Radiographic Imaging

Synthesis of yttria nanopowder with poly acrylic acid as dispersant for highly transparent yttria ceramics

Contact Info

Product

Resources

About

Fabrication and properties of Eu:Lu2O3 transparent ceramics for X-ray radiation detectors

Cited by 21 publications

References 35 publications

Tailoring of Typical Color Centers in Diamond for Photonics

Tailoring of Typical Color Centers in Diamond for Photonics

Afterglow-Suppressed Lu2O3:Eu3+ Nanoscintillators for High-Resolution and Dynamic Digital Radiographic Imaging

Synthesis of yttria nanopowder with poly acrylic acid as dispersant for highly transparent yttria ceramics

Contact Info

Product

Resources

About

Afterglow-Suppressed Lu₂O₃:Eu³⁺ Nanoscintillators for High-Resolution and Dynamic Digital Radiographic Imaging