Novel Self‐Powered Sensitive X‐Ray Detection Crystal Bi2Mo0.36W1.64O9 with Effective Functional Motif Coupling in a Quasi‐2D Perovskite Structure DOI Open Access
Lishan Liu, Hongyao Zhou, Jingquan Liu

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract The demand for medical imaging with reduced patient dosage and higher resolution is growing, driving the need advanced X‐ray detection technologies. This paper proposes a design paradigm semiconductors by coupling constituent motifs through crystal structure engineering. study introduces strongly anisotropic Aurivillius‐type quasi‐2D perovskite structure, combining [Bi 2 O ] 2+ groups stereochemically active lone pair electrons (SCALPEs) [W/Mo 7 2− anionic groups, enabling enhanced Compton scattering self‐powered capabilities local electric field ordering. results in first Bi‐based tungstate Bi Mo 0.36 W 1.64 9 (BMWO) detector, achieving record sensitivity of 381 µC Gy −1 cm −2 . Additionally, demonstrates capability detector operating self‐driven mode. work highlights BMWO as promising candidate stable direct validates material strategy that leverages large anisotropy structures sensitive detection.

Language: Английский

Organic–Inorganic Hybrid Glasses of Atomically Precise Nanoclusters DOI Creative Commons
Chunwei Dong, Xin Song, Bashir E. Hasanov

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(11), P. 7373 - 7385

Published: March 4, 2024

Organic–inorganic atomically precise nanoclusters provide indispensable building blocks for establishing structure–property links in hybrid condensed matter. However, robust glasses of ligand-protected nanocluster solids have yet to be demonstrated. Herein, we show [Cu4I4(PR3)4] cubane coordinated by phosphine ligands (PR3) form melt-quenched air with reversible crystal–liquid–glass transitions. Protective critically influence the glass formation mechanism, modulating glasses' physical properties. A utilizing ethyldiphenylphosphine-based nanoclusters, [Cu4I4(PPh2Et)4], exhibits superb optical properties, including >90% transmission both visible and near-infrared wavelengths, negligible self-absorption, near-unity quantum yield, high light yield. Experimental theoretical analyses demonstrate structural integrity [Cu4I4(PPh2Et)4] nanocluster, i.e., iodine-bridged tetranuclear cubane, has been fully preserved state. The strong internanocluster CH−π interactions found subsequently reduced vibration account its enhanced luminescence Moreover, this highly transparent enables performant X-ray imaging low-loss waveguiding fibers drawn above transition. discovery "nanocluster glass" opens avenues unraveling mechanisms designing novel luminescent well-defined advanced photonics.

Language: Английский

Citations

34
A Thermo‐Responsive MOFs for X‐Ray Scintillator DOI
Hongjun Li, Yi Li, Lin Zhang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(32)

Published: June 12, 2024

Abstract Thermo‐responsive smart materials have aroused extensive interest due to the particular significance of temperature sensing. Although various photoluminescent are explored in thermal detection, it is not applicable enough X‐ray radiation environment where accuracy and reliability will be influenced. Here, a strategy proposed by introducing concept radio‐luminescent functional building units (RBUs) construct thermo‐responsive lanthanide metal‐organic frameworks (Ln‐MOFs) scintillators for self‐calibrating thermometry. The rational designs RBUs (including organic ligand Tb 3+ /Eu ) with appropriate energy levels lead high‐performance radio‐luminescence. Ln‐MOFs exhibit perfect linear response X‐ray, presenting low dose rate detection limit (min ≈156.1 nGy air s ‐1 ). Self‐calibrating based on ratiometric XEL intensities achieved good absolute relative sensitivities 6.74 8.1%K , respectively. High light yield (max ≈39000 photons MeV −1 ), imaging spatial resolution ≈18 lp mm irradiation stability (intensity ≈100% at 368 K total up 215 Gy giant color transformation visualization benefit applications, especially situ imaging. Such provides promising way develop novel photonic excellent scintillator performances.

Language: Английский

Citations

29
Arising 2D Perovskites for Ionizing Radiation Detection DOI
Weijun Li, Mingbian Li, Yuhong He

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: April 5, 2024

2D perovskites have greatly improved moisture stability owing to the large organic cations embedded in inorganic octahedral structure, which also suppresses ions migration and reduces dark current. The suppression of by effectively excessive device noise baseline drift shows excellent potential direct X-ray detection field. In addition, gradually emerged with many unique properties, such as anisotropy, tunable bandgap, high photoluminescence quantum yield, wide range exciton binding energy, continuously promote development ionizing radiation detection. This review aims systematically summarize advances progress halide perovskite semiconductor scintillator detectors, including reported alpha (α) particle, beta (β) neutron, X-ray, gamma (γ) ray structural features their advantages are discussed. Development directions proposed overcome limitations detectors.

Language: Английский

Citations

26
Capillary Manganese Halide Needle‐Like Array Scintillator with Isolated Light Crosstalk for Micro‐X‐Ray Imaging DOI Creative Commons
Wenyi Shao, Tengyue He, Lijie Wang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 10, 2024

Abstract The exacerbation of inherent light scattering with increasing scintillator thickness poses a major challenge for balancing the thickness‐dependent spatial resolution and scintillation brightness in X‐ray imaging scintillators. Herein, thick pixelated needle‐like array capable micrometer is fabricated via waveguide structure engineering. Specifically, this involves integrating straightforward low‐temperature melting process manganese halide an aluminum‐clad capillary template. In structure, oriented photons propagate along well‐aligned are confined within individual pixels by aluminum reflective cladding, as substantiated from comprehensive analysis including laser diffraction experiments. Consequently, thanks to isolated light‐crosstalk channels robust output due increased thickness, ultrahigh resolutions 60.8 51.7 lp mm −1 at modulation transfer function (MTF) 0.2 achieved on 0.5 even 1 scintillators, respectively, which both exceed pore diameter arrays’ template ( Φ = 10 µm). As far it known, these among highest reported metal scintillators never demonstrated such Here avenue presented demand high‐resolution across diverse scientific practical fields.

Language: Английский

Citations

21
Ce3+-doped oxyfluoride glass scintillator: optimized radioluminescence and application in X-ray imaging DOI
Jiajia Guo, Lianjie Li, JunYu Chen

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 980, P. 173670 - 173670

Published: Jan. 26, 2024

Language: Английский

Citations

19
Anchoring group regulation of bridging molecules enables brightly luminescent and ultra-stable Cs2ZrCl6@SiO2 scintillator for high-resolution X-ray imaging DOI

Run Gan,

Yanqing Zu,

Tong Zhang

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

10
High‐Confidentiality X‐Ray Imaging Encryption Using Prolonged Imperceptible Radioluminescence Memory Scintillators DOI

Zhijian Yang,

Peng Zhang, Xiaofeng Chen

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(52)

Published: Nov. 11, 2023

X-ray imaging plays an increasingly crucial role in clinical radiography, industrial inspection, and military applications. However, current technologies have difficulty protecting against information leakage caused by brute force attacks via trial-and-error. Here high-confidentiality encryption fabricating ultralong radioluminescence memory films composed of lanthanide-activated nanoscintillators (NaLuF4 : Gd3+ or Ce3+ ) with imperceptible purely-ultraviolet (UV) emission is reported. Mechanistic investigations unveil that attributed to the long-lived trapping thermalized charge carriers within Frenkel defect states subsequent slow release form radioluminescence. The encrypted can be securely stored film for more than 7 days optically decoded perovskite nanocrystal. Importantly, this strategy protect trial-and-error through perception lifetime change persistent It further demonstrated as-fabricated flexible enables achieving 3D curved objects a high spatial resolution 20 lp/mm excellent recyclability. This study provides valuable insights into fundamental understanding X-ray-to-UV conversion nanocrystal lattices opens up new avenue toward development high-confidential technologies.

Language: Английский

Citations

28
Anchoring the AIEgen by Zr clusters in metal-organic gel for efficient X-ray detection and imaging DOI
Xiaoze Wang, Xia Wang, Jianxin Song

et al.

Chem, Journal Year: 2024, Volume and Issue: 10(4), P. 1268 - 1278

Published: Feb. 21, 2024

Language: Английский

Citations

15
Low‐Dimensional Metal Halide for High Performance Scintillators DOI
Quan Zhou, Wei Li, Jiawen Xiao

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(38)

Published: April 25, 2024

Abstract Inorganic scintillators play a pivotal role in diverse fields like medical imaging, nondestructive detection, homeland security, and high‐energy physics. However, traditional inorganic encounter challenges such as high fabrication costs low light yield. Recently, low‐dimensional metal halide (LDMHS) have witnessed rapid progress, owing to their distinctive crystal structure superior radioluminescence performance. Herein, an overview of recent advancements proposed instructive pathways for achieving high‐performance LDMHS is provided. First, the scintillation physical mechanism emphasis on essential requirements applications are elucidated. Furthermore, classified according B‐site cations, respective characteristics introduced. This encompasses understanding structure‐property relationships routes rules optimizing Finally, persisting this burgeoning field potential research directions future exploration discussed.

Language: Английский

Citations

12
Designer bright and fast CsPbBr3 perovskite nanocrystal scintillators for high-speed X-ray imaging DOI Creative Commons
Zhi Yang, Jisong Yao, Leimeng Xu

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 14, 2024

Bright and fast scintillators are highly crucial for high-speed X-ray imaging in the medical diagnostic radiology including angiography cardiac computed tomography. The CsPbBr

Language: Английский

Citations

11