Highly sensitive terbium-based metal–organic framework scintillators applied in flexible X-ray imaging DOI

Peng‐Kun Wang,

Wen-Fei Wang,

Baoyi Li

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

A high radioluminescence sensitivity and low detection limit terbium-based metal–organic framework scintillator was applied for high-resolution flexible X-ray imaging.

Language: Английский

Co-doping of Sb3+/Ln3+ in the Cs2NaGdCl6 perovskite leads to efficient energy transfer and single-host white light emission DOI
Zihan Chen,

Xiuxiu Peng,

Wenjun Zhang

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(38), P. 15761 - 15767

Published: Jan. 1, 2024

Sb 3+ /Ln co-doped Cs 2 NaGdCl 6 double perovskite was prepared. The energy transfer relationship between and Tb explored. White phosphors with CIE coordinates of (0.34, 0.33) were obtained by introducing Ho into the :Sb ,Tb .

Language: Английский

Citations

3
In Situ Synthesis of Br‐Rich CsPbBr3 Nanoplatelets: Enhanced Stability and High PLQY for Wide Color Gamut Displays DOI
V. Naresh, John Leo Velpugonda, Nohyun Lee

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 25, 2024

Abstract This study presents the Br‐rich in situ synthesis of blue‐emitting 2D CsPbBr 3 nanoplatelets (NPLs) with various Br/Pb ratios using ZnBr 2 as a Br precursor to enhance ion adsorption significantly. leads effective passivation surface defects, particularly Pb−Br bonds, by increasing positive charge density around Pb atoms, thus creating stable bonding environment and reducing defect formation. Consequently, photoluminescence quantum yield (PLQY) improves from 31.15% for ratio 87.2% 6. NPLs 6 also exhibit longer lifetimes (16.69 ns) slower bleach recovery dynamics, indicating fewer non‐radiative recombination pathways exciton dynamics. Additionally, demonstrated better thermal stability, an activation energy 124.3 meV, stronger binding. These exhibited enhanced UV tolerance at 43.9% water resistance 23.8%, making them suitable displays lighting. Furthermore, Br‐passivated are used blue emitters prototype white LEDs, achieving wide color gamut, 126.6% National Television Standards Committee 94.5% Rec. 2020, demonstrating their potential high‐quality lighting advanced display technologies.

Language: Английский

Citations

3
Enhanced scintillating performance in Tb3+ doped oxyfluoride glass for high-resolution X-ray imaging DOI

Lanjiao Li,

Rongfei Wei, Li Wang

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

2
Advanced Probing of Eu2+/Eu3+ Photoemitter Sites in Baal2o4:Eu Scintillators by Synchrotron Radiation X-Ray Excited Optical Luminescence Probe DOI
Latif Ullah Khan,

Ruba I. Alzubi,

Hassan K. Juwhari

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

1
Tb3+-doped a zero-dimensional all-inorganic metal halide perovskite scintillator Cs2ScCl5·H2O for X-ray imaging DOI
Wanhui Li, Lifang Yuan, Haoyi Wu

et al.

Optical Materials, Journal Year: 2024, Volume and Issue: unknown, P. 116130 - 116130

Published: Sept. 1, 2024

Citations

1
Toward an Ideal Light Source for Indoor Photosynthesis: Broadband Red Emission in Zero-Dimensional Hafnium-Based Metal Halide (TPP)2HfCl6·4C2H3N:Sb3+ DOI
Xiangyan Yun, Yan‐Rong Zhu, Yu Wang

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

With suitable electron-phonon coupling strength, a near-unity broadband photoluminescence quantum yield (PLQY) can be achieved in organic-inorganic hybrid metal halides (OIHMHs) via self-trapped exciton (STE) emission. However, it is still challenging to obtain high-quality red emission from OIHMHs with desirable wavelength and high chemical stability, which hinders their practical application high-performance displays, plant-growth lighting, biomedical imaging. Herein, series of hafnium-based zero-dimensional (TPP)

Language: Английский

Citations

1
Defects in Ligand‐Exchange‐Passivated Mixed‐Halide Double Perovskite Nanocrystals for X‐ray Imaging DOI Open Access
Gaoyuan Xing,

Endian Cui,

Xiangyang Yuan

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract Nanostructured scintillators, renowned for their exceptional miniaturization and portability, are typically designed with homogeneous dopant ion concentration profiles. While these profiles facilitate consistent optical properties, they may pose challenges in terms of compromising light emission intensity overall scintillation efficiency. A pressing issue the field X‐ray flat‐panel minidetectors is lack specific innovative strategies to significantly enhance radioluminescence capabilities, which has hindered further advancements. This research showcases an efficacious strategy synthesizing ligand‐exchange‐passivated mixed‐halide double perovskite nanocrystals (NCs) tailored remarkable capabilities. The composition fine‐tuned via anion exchange between Bi 3+ Tb ‐doped Cs 2 AgInCl 6 NCs potassium bromide (KBr). Additionally, initial oleic acid ligands substituted 1‐dodecanethiol (1‐DT), effectively compensating inherent halogen vacancies mitigating halide migration. underlying passivation mechanism elucidated through a comprehensive approach that combined spectroscopic experiments theoretical calculations. Consequently, fabricated transparent scintillator films, incorporating synthesized NCs, exhibit high yield ≈20 952 photons MeV −1 , sensitive detection limit 207.5 nGy air s spatial resolution 8.1 lp mm unparalleled stability under prolonged irradiation.

Language: Английский

Citations

1
Light Emitting Rare Earth Doped K3GdF6:Eu3+ for Spectral Mapping/Imaging Studies DOI
Ib Singh Deo, Mohini Gupta, G. Vijaya Prakash

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(8), P. 1677 - 1687

Published: Aug. 3, 2024

Herein, we report a strategy to synthesize an Eu3+ doped single-phase monoclinic K3GdF6 double perovskite via solid-state route with average crystallite size of 18 ± 2.00 nm. Characterization methods such as X-ray diffraction, high-resolution transmission electron microscopy, photoelectron spectroscopy, and spectroscopic techniques provided thorough understanding the material's atomic molecular-level structural, morphological, functional properties. The photoluminescence study K3GdF6:5% under different excitations 273, 393, 405, 464 nm showed hypersensitive, intense red emission at 613 orange 590 nm, which is necessary parameter for high contrast imaging, particularly overcoming autofluorescent background. usage spectral mapping imaging has been specifically demonstrated through spatial 405 laser excitation. Moreover, optical studies substantiated occurrence quantum cutting in K3GdF6:Eu3+ systematic energy transfer between Gd3+ Eu3+. Interestingly, addition attributes, superparamagnetic behavior low temperature (2 K) saturation magnetization 96.86 emu/g. Through exhaustive investigation its properties, synthesized be feasible choice bioimaging (including MRI), multiplexing detection, sensing, other technologies.

Language: Английский

Citations

0
Advanced Probing of Eu2+/Eu3+ Photoemitter Sites in Baal2o4:Eu Scintillators by Synchrotron Radiation X-Ray Excited Optical Luminescence Probe DOI
Latif Ullah Khan,

Ruba I. Alzubi,

Hassan K. Juwhari

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Luminescence regulation of rare-earth based double perovskites by doping and applications DOI
Ruoxuan Wang, Haowen Hou,

Bai Yunlong

et al.

Journal of Luminescence, Journal Year: 2024, Volume and Issue: 277, P. 120990 - 120990

Published: Nov. 15, 2024

Language: Английский

Citations

0