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Article
Chemistry, Multidisciplinary
Xiangmei Liu et al.
Summary: Scintillator-based X-ray imaging has been developed using lanthanide(III)-Cu4I4 heterometallic organic frameworks (Ln-Cu4I4 MOFs) which consist of X-ray absorption centers ([Cu4I4] clusters) and luminescent chromophores (Ln(III) ions). The [Cu4I4] clusters absorb X-ray energy to generate triplet excitons through halide-to-ligand charge transfer (XLCT) and metal-to-ligand charge transfer (MLCT) state. These excitons excite Tb3+ to produce intense X-ray-excited luminescence through energy transfer. Tb-Cu4I4 MOFs exhibit high resistance to humidity and radiation, linear response to X-ray dose rate, and high X-ray relative light yield. X-ray imaging with Tb-Cu4I4 MOFs-based flexible scintillator film shows high spatial resolution.
ADVANCED MATERIALS
(2023)
Article
Optics
Kai Han et al.
Summary: A design method is established by considering charge-transfer and recombination efficiencies in doped MHPs materials, improving the luminescence performance of MHP scintillators. Alloying Te4+ into Cs2ZrCl6 significantly enhances scintillation performance, including increased light yield and detection limit, as well as high-resolution X-ray imaging capabilities.
LASER & PHOTONICS REVIEWS
(2023)
Editorial Material
Chemistry, Physical
Yang Zhou et al.
Summary: Flexible copper halide films with outstanding mechanical stability, excellent film uniformity, nearly 100% photo-luminescence quantum yields, and resistance to water and heat were fabricated. Scintillators based on these films exhibit superior scintillation performance with a detection limit as low as 48.6 nGy/s and 17 lp/mm X-ray imaging resolution, representing the highest imaging resolution for powder-based screens.
ACS ENERGY LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Tingting Xu et al.
Summary: This article reports the synthesis and properties of two lead-free zero-dimensional hybrid halide crystals. These crystals exhibit broadband emission and fast scintillation decay through exciton emission bound to defects. Among them, the (Bmpip)(2)Cu2Br4 single crystal shows high photoluminescence quantum yield, high scintillation yield, and low detection limit, making it a promising X-ray scintillator.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Kai Han et al.
Summary: This study presents a novel cold sintering technique to fabricate transparent TPP2MnBr4 ceramic wafers with high optical transparency and exceptional scintillation performance, enabling high spatial resolution X-ray medical imaging.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Bohan Li et al.
Summary: This study demonstrates the fabrication of a large transparent medium with high transparency and scintillation performance using a simple melt-quenching strategy, which shows potential for medical and industrial X-ray imaging applications.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jun-Hua Wei et al.
Summary: This study reports a multifunctional luminescent material (AEP)(2)Cu2I6 center dot 2I center dot 2H(2)O, which exhibits high photoluminescence quantum yield and responds to multiple excitation sources. The material demonstrates a high light yield and excellent attenuation capability for X-ray, making it suitable for applications in anti-counterfeiting, solid-state lighting devices, and digital radiography.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Ruijia Sun et al.
Summary: Spatial resolution improvement has been achieved in the perovskite-based scintillation community using self-assembled perovskite nanosheets. The use of a polymer substrate provides flexibility and eliminates X-ray absorption. The assembly behavior of the nanosheets enables efficient energy transfer and mitigates reabsorption issues.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Kai Han et al.
Summary: This paper presents the design of two new zero-dimensional copper(I)-based clusters that enhance scintillation performance through single channel photon emission. The study provides a feasible design principle for discovering new metal cluster-based scintillators.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Physical
Tengyue He et al.
Summary: This article describes the development of high-performance and flexible X-ray scintillators based on Cu-doped Cs2AgI3 films, which exhibit ultrahigh X-ray sensitivity. The materials have high scintillation light yield and low detection limit, making them suitable for cost-effective, ecofriendly, and flexible X-ray detection.
ACS ENERGY LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Zhi-Zhong Zhang et al.
Summary: A single crystal scintillator, TEA2MnI4, with high transmittance and light yield has been successfully prepared using a local-heating solvent evaporation method. It shows potential for high-resolution X-ray imaging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Fei Zhang et al.
Summary: This study demonstrates a large-scale and cost-efficient solution synthesis method for vacancy-ordered double perovskite Cs2ZrCl6, which exhibits thermal activation delayed fluorescence (TADF) under X-ray irradiation. Flexible X-ray scintillator screens with excellent scintillation properties and high-quality imaging results are prepared using this material.
ADVANCED MATERIALS
(2022)
Article
Optics
Jian-Xin Wang et al.
Summary: The research on organic X-ray imaging scintillators is an attractive direction for chemists, materials scientists, physicists and engineers. By introducing heavy atoms, researchers improved the X-ray absorption capability of scintillators while maintaining their unique TADF properties and high photoluminescence quantum yield. The X-ray screens fabricated using this method showed high resolution and sensitivity.
Article
Multidisciplinary Sciences
Lei Lei et al.
Summary: The kinetics of time evolution of X-ray excited afterglow can be manipulated by selectively doping lanthanide activators in core-shell nanostructures. The intensity and spectral characteristics of the afterglow can be enhanced and tuned separately, enabling diverse and time-dependent color evolution. Additionally, a core/multi-shell structure can generate afterglow, upconversion and downshifting simultaneously, allowing for multimode time-dependent multicolor evolutions.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Shu-Yi Yao et al.
Summary: The explored Cs(2)Zr(1-x)PbxCl(6) perovskite scintillator in this study shows outstanding performance in X-ray detection, with high radioluminescence intensity and steady-state light output. It can achieve a low detection limit even in an indoor lighting environment and also enables high-resolution X-ray imaging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Xiangzhou Zhang et al.
Summary: This study fabricated an ultra-high loading ceramic nanocomposite film with high transparency and flexibility using a blade coating technique. The refractive-index difference between the nanoparticles and matrix was identified as the dominating factor to transparency. The transmittance spectra based on Rayleigh scattering theory were simulated to screen suitable nanoparticle radius and loading content for film making.
Article
Nanoscience & Nanotechnology
Shu-Yi Yao et al.
Summary: X-rays play a critical role in various fields, but their potential harm to human health and the environment has been a concern. In this study, a Cs(2)Zr(1-x)PbxCl(6) perovskite scintillator was explored, which showed high radioluminescence intensity and could be used for X-ray detection even in indoor lighting. It had a low detection limit and achieved high-resolution X-ray imaging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Optics
Lei Lei et al.
Summary: This review discusses the XEOL and XEPL characteristics of lanthanide doped fluoride NSs and explores design strategies and nanostructures for achieving multi-wavelength emission and temporal profile variations.
Article
Materials Science, Multidisciplinary
Kuangnan Lyu et al.
Summary: Doping engineering has been utilized to prepare a lead-free all-inorganic halide perovskite phosphor, KCaCl3: Eu2+, exhibiting high-efficiency blue emission and good thermal stability. This phosphor also shows potential in X-ray detection and imaging.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Jian-Xin Wang et al.
Summary: This work introduces a highly efficient X-ray-harvesting system using luminescent metal-organic framework-fluorescence chromophore composite films, achieving nearly 100% energy transfer. The system significantly enhances radioluminescence upon X-ray radiation, with a low detection limit suitable for X-ray radiography applications.
Article
Chemistry, Multidisciplinary
Tingming Jiang et al.
Summary: Environmentally friendly metal halides, such as tetramethylammonium manganese chloride and tetraethylammonium bromide, have been synthesized and shown to have high photoluminescence quantum yields and good environmental stability. When blended in white light-emitting diodes, they display outstanding luminous efficacy. Under X-ray excitation, these materials demonstrate steady-state X-ray light yields and radiation hardness.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Xiaoming Mo et al.
Summary: The research focuses on using copper(I) to fully substitute lead in order to produce high-quality, air stable yellow emitting CsCu2I3 single crystals. These single crystals exhibit a record photoluminescence quantum yield exceeding 50% and are capable of producing white light-emitting diodes that can work continuously for over 580 hours in air. Photodetectors fabricated using these single crystals show distinct UV response with a fast response time as low as 50.4 ms.
Review
Chemistry, Physical
Yang Zhou et al.
Summary: Metal halide perovskite materials show promising potential in X-ray imaging and detection due to their high absorption cross sections and excellent optical and electrical properties. Future research should focus on addressing remaining technical challenges to enable broader applications of perovskite-based X-ray technologies.
ACS ENERGY LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Hui Peng et al.
Summary: The lead-free compound (Gua)(3)Cu2I5 has a unique structure and excellent photoelectric properties, making it suitable for white solid-state lighting and sensitive temperature scaling applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Hao Zhang et al.
Summary: A self-limited growth strategy was proposed to construct CsPbBr3 nanocrystals embedded in a transparent amorphous network structure for X-imaging with excellent resolution and fast decay time. The performance degradation caused by high-dose X-ray irradiation can be fully recovered after a simple thermal treatment process, highlighting the practical settlement of promising perovskites for cost-effective scintillator devices.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Xue Zhao et al.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Linyuan Lian et al.
Article
Multidisciplinary Sciences
Liang-Jin Xu et al.
NATURE COMMUNICATIONS
(2020)
Article
Materials Science, Multidisciplinary
Jun-Hua Wei et al.
Article
Materials Science, Multidisciplinary
Qingquan He et al.
ACS MATERIALS LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Viktoriia Morad et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Multidisciplinary
Bo Yang et al.
ADVANCED MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Tao Li et al.
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Chenkun Zhou et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2018)
Article
Optics
Haotong Wei et al.
Review
Materials Science, Multidisciplinary
Martin Nikl et al.
ADVANCED OPTICAL MATERIALS
(2015)
Article
Physics, Multidisciplinary
A. Yoshikawa et al.
ACTA PHYSICA POLONICA A
(2013)
Article
Chemistry, Physical
O Rabin et al.
Article
Optics
MJ Weber
JOURNAL OF LUMINESCENCE
(2002)
Article
Instruments & Instrumentation
CWE van Eijk
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2001)