Scalable Fabrication of Lead-Free Metal Halide for Indirect Flat Panel Detector DOI

J. Shi,

Shuo Wang, Qi Zhao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: June 5, 2025

Metal halides have excellent radioluminescence performance, which makes them suitable for X-ray indirect flat panel detectors (I-FPDs). However, commercialization prospects are still constrained by two issues: 1. Lead toxicity, poses significant health risks to the human body, limits application scenarios of I-FPDs. 2. The fabrication technique restricts production large-area scintillators, making it difficult achieve flat-panel imaging. Therefore, developing lead-free metal and techniques is essential. In this perspective, we summarize several promising halide materials processes, then compare their performance. Additionally, also discussed potential development directions future This systematic review aims contribute advancement radiation detection technologies providing researchers with a thorough understanding current landscape scintillators.

Language: Английский

Tunable Emissions in Zero‐Dimensional (C6H5CH2NH3)3InBr6 Enabled by Controlled Structural Amorphization DOI Creative Commons
Qian Li, Bin Xu, Xiaofan Xu

et al.

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

Published: Feb. 2, 2025

ABSTRACT Zero‐dimensional (0D) hybrid metal halides (HMHs) hold great promise as multifunctional emitters. However, precise functionalization of organic moieties and controlled modulation self‐trapped exciton (STE) emission from inorganic polyhedra remain challenging. This study introduces 0D (PMA) 3 InBr 6 (PMA + = C H 5 CH 2 NH ) a emitter, leveraging pressure‐induced structural regulation to control photoluminescence properties. Increasing pressure leads simultaneous contraction distortion 3− octahedra, shifting the STE color orange green. At high compression, amorphization quenches emission, but upon release, bright cyan PMA cation emerges, with intensity approximately 21 times stronger than that initial emission. The enhanced is attributed altered molecular configurations, disrupted intermolecular contacts, reduced lattice vibrations, collectively suppressing excimeric coupling minimizing nonradiative losses in recovered amorphous phase. Furthermore, conversion also achieved via laser‐induced amorphization, expanding potential for direct laser writing sensitive detection applications.

Language: Английский

Citations

0
Melt‐Processing Enabled Flexible Metal Halide‐Nylon Luminescent Films with Enhanced Optical Transmission for Curved X‐Ray Imaging DOI

Zi‐Lin He,

Wenguang Li,

Jing‐Hua Chen

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Organic–inorganic hybrid metal halides are emerging as a class of functional materials that combine attractive photophysical properties with great processability. Their modular chemical structures allow for melt processing through crystal‐melt transitions. Herein, the study reports synthesis (Bzmim) 2 MnX 4 (Bzmim = 1‐benzyl‐3‐methylimidazolium, X Cl, Br, I) single crystals low melting temperatures ranging from 130 to 160 °C. Among them, MnBr exhibits superior luminescence performance photoluminescence quantum yield 78.6% and light 34 900 photons MeV −1 , making it act promising scintillator. Interestingly, leveraging fluidity porous structure nylon film, transparent crystalline ‐Nylon composite film is fabricated by melt‐infiltration process. Compared has an increased transmittance ≈20% >60%. It can be attributed uniform crystallization in pores which suppresses severe crosstalk caused large refractive index difference at nylon‐air interface. The melt‐processable spatial resolution 16 line pairs per millimeter practical X‐ray imaging, well applications curved imaging due its flexibility.

Language: Английский

Citations

0
New Organic–Inorganic Chloride (2-Amino-4-methylpyridinium Hexachlorostannate): Crystal Structure, BFDH Morphology, and Electrical Conduction Mechanism DOI

Iheb Garoui,

Sondes Hajlaoui,

Mohamed Tliha

et al.

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112840 - 112840

Published: May 1, 2025

Language: Английский

Citations

0
Reversible Solution–Gel–Crystal Transformations of Ethyltriphenylphosphonium Cuprous Iodide Single Crystals with Photo- and Radioluminescence DOI
Yanqing Liu, Haitao Tang,

Mengjie Sang

et al.

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Language: Английский

Citations

0
Scalable Fabrication of Lead-Free Metal Halide for Indirect Flat Panel Detector DOI

J. Shi,

Shuo Wang, Qi Zhao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: June 5, 2025

Metal halides have excellent radioluminescence performance, which makes them suitable for X-ray indirect flat panel detectors (I-FPDs). However, commercialization prospects are still constrained by two issues: 1. Lead toxicity, poses significant health risks to the human body, limits application scenarios of I-FPDs. 2. The fabrication technique restricts production large-area scintillators, making it difficult achieve flat-panel imaging. Therefore, developing lead-free metal and techniques is essential. In this perspective, we summarize several promising halide materials processes, then compare their performance. Additionally, also discussed potential development directions future This systematic review aims contribute advancement radiation detection technologies providing researchers with a thorough understanding current landscape scintillators.

Language: Английский

Citations

0