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Article
Nanoscience & Nanotechnology
Tian-Chi Wang et al.
Summary: In this study, a one-dimensional Cs5Cu3Cl6I2 scintillator with high thermal stability was designed and developed. The scintillator showed high thermal stability due to the bridges formed by I-ions in the 1D chain structure, improving its structural rigidity. It exhibited a high steady-state light yield (59,700 photons MeV-1) and the highest spatial resolution for powder-based scintillation screens (18 lp mm-1) after cyclic treatment within the temperature range of 298-423 K. The Cs5Cu3Cl6I2 scintillator has significant potential for application in high-temperature environments, as it allows the visualization of alloy melting. This study provides a new perspective for the design of scintillators with high thermal stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Optics
Luying Yi et al.
Summary: This study presents the design of double-tapered optical-fibre arrays to increase the light output of thick light-emitting layers. It demonstrates the fabrication of large-scale pixel-dense X-ray and gamma-ray detector arrays. It also shows the possibility of high-resolution X-ray and gamma-ray imaging, as well as convenient monitoring of dynamic energy spectrum and dose rate using a hemispherical fibre array dosimeter.
Article
Materials Science, Multidisciplinary
Jiance Jin et al.
Summary: Metal halide scintillators with high light yield and sensitive detection are achieved by introducing Zn2+ into [TPPen](2)MnBr4. The introduction of Zn atoms enhances the light yield from 43,000 to 68,000 photons MeV-1 and decreases the detection limit from 696.9 nGy s(-1) to 204.1 nGy s(-1). X-ray imaging is realized using large-scale scintillator films made with TPPMZB or TPPMB, and the spatial resolution is improved from 4.6 to 11.2 lp mm(-1) after Zn2+ doping.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Engineering, Environmental
Wen-Fei Wang et al.
Summary: In this study, a scintillating 1D metal-organic framework was synthesized by a low-cost and short-cycle solvothermal process. The material showed sensitive and steady X-ray response, excellent linearity to X-ray dose rates, and relatively high spatial resolution in X-ray imaging applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Tao Ji et al.
Summary: This paper introduces a new type of TC scintillator material (YAG:Ce3+ TCs), which has high transmittance and steady-state light yield, and can achieve excellent X-ray imaging performance. Due to its structural stability, it can work stably under long-term X-ray irradiation, providing new opportunities for the development of high-quality X-ray imaging.
ADVANCED OPTICAL MATERIALS
(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
Thermodynamics
V. S. Devahdhanush et al.
Summary: Since 2012, researchers have been studying flow boiling and condensation in microgravity in order to develop an experiment for the International Space Station (ISS). This study investigates the flow boiling of n-Perfluorohexane in a rectangular channel, analyzing the effects of various operating parameters on heat transfer.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(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
Optics
Jincong Pang et al.
Summary: This study reports the design of vertical matrix perovskite X-ray detectors for multi-energy detection. The detectors can accurately reconstruct incident X-ray spectra and produce a set of images with density-graded information under single exposure. It can also locate the position of substances with different densities.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Lin-Quan Guan et al.
Summary: Lead-based halide perovskite nanomaterials with excellent optical properties have been widely studied for applications in solar cells, light-emitting diodes, lasing, and X-ray imaging. However, the toxicity of lead has led researchers to explore alternative materials. In this study, all-inorganic manganese-based perovskite derivatives were successfully synthesized, and the introduction of a small amount of lead greatly improved photoluminescence intensity and quantum yield. These nanomaterials also showed high-efficiency X-ray absorption and radioluminescence, making them promising candidates for X-ray imaging.
Article
Chemistry, Physical
Kai Li et al.
Summary: This study reports the precipitation of lead-free Mn:Cs2ZnX4 nanocrystals in glasses, which exhibit efficient green and red photoluminescence. The coordination environment of Mn2+ ions can be tuned by adjusting the size and halide component of the nanocrystals, resulting in tunable photoluminescence with improved quantum efficiency. The in-situ precipitation of these nanocrystals in glasses significantly enhances their thermal, chemical, and photo-stabilities, making them promising for light-emitting diodes with stable chromaticity coordinates.
Article
Optics
Jizhong Jiang et al.
Summary: This article introduces X-ray detectors based on dual-site-doped perovskite single crystals, which exhibit excellent sensitivity and stability. The trade-off between stability and detection performance is successfully solved by alloying and doping engineering.
Article
Chemistry, Physical
Noah Hoffmann et al.
Summary: This comprehensive study investigates the conventional superconductivity in cubic antiperovskites materials and uses interpretable machine-learning models to predict materials with high superconducting transition temperatures. The combination of traditional approaches and machine learning proves to be an efficient methodology for studying and systematizing materials.
NPJ COMPUTATIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Matyas Hunyadi et al.
Summary: This study presents the scintillation properties of CsCu2X3 and Cs3Cu2X5 as thin-film scintillators, demonstrating their performance in the timing and spectroscopic evaluation of single-particle events. Utilizing a simple and cost-effective deposition procedure, without external dopants, the thin layers show optical pulse characteristics and light yield competitive with doped single crystal scintillators.
ADVANCED FUNCTIONAL MATERIALS
(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
Chemistry, Multidisciplinary
Muyi Zhang et al.
Summary: The all-inorganic lead-free halides Cs-Cu-I system, consisting of Cs3Cu2I5 and CsCu2I3, has been attracting attention for their good photophysical characteristics, with potential applications in light-emitting devices. This study focuses on the CsCu2I3 compound and its use in X-ray scintillator detectors, leveraging its one-dimensional crystal structure, congruent-melting feature, and high spectral matching to photosensors. By utilizing an oriented nanorod structure and novel fabrication techniques, a CsCu2I3 detector achieved high spatial resolution of 7.5 Ip mm(-1) in X-ray imaging.
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, Inorganic & Nuclear
Shugang Tan et al.
Summary: Mn3PdN, a weak correlated system, demonstrates multifunctional properties such as a near-zero temperature coefficient of resistivity (TCR) and negative thermal expansion (NTE) with a first-order paramagnetic to antiferromagnetic transition at 285 K (TN).
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Xiangyu Ou et al.
Summary: The research demonstrates a flat-panel-free, high-resolution, three-dimensional imaging approach using lanthanide-doped nanomaterials and flexible substrates, termed X-ray luminescence extension imaging.
Article
Optics
J. Perego et al.
Summary: This study demonstrates that composite materials based on fluorescent metal-organic framework (MOF) nanocrystals can function as fast scintillators, crucial for medical imaging technologies. By embedding MOF nanocrystals in a polymer, a prototype scintillator with ultrafast scintillation rise time of around 50 ps was successfully developed, supporting the development of new scintillators based on engineered fluorescent MOF nanocrystals.
Article
Chemistry, Multidisciplinary
Mengnan Yao et al.
Summary: Organolead trihalide perovskite single crystals offer unprecedented opportunity for X-ray and visible light detection, and formamidinium lead bromide single crystals are developed to address the challenge of maintaining high-performance and stability at high temperatures. These crystals demonstrate excellent performance as radiation detectors with low X-ray dose rate and high detectivity, as well as stability as photodetectors at high temperatures. The development of these bifunctional detectors could pave the way for stable detection in extreme space environments.
Article
Chemistry, Multidisciplinary
Long Shao et al.
Summary: The lead-free Ce3+ doped Cs3MnBr5 metal halide nanocrystals exhibit a broadband UV response and efficient blue photoluminescence, with significantly improved photoluminescence quantum yield and longtime stability. These nanocrystals were used to fabricate a highly desirable broadband UV photodetector with a responsivity of 1.1 A/W and millisecond response time, demonstrating a strategy for novel UV optoelectronic systems.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Shuangliang Cheng et al.
Summary: In this study, a highly efficient scintillator based on Tl-doped Cs3Cu2I5 crystals was developed for X-ray and gamma-ray detection. The Cs3Cu2I5:Tl demonstrated significantly enhanced steady-state scintillation yield, improved X-ray detection limit, low afterglow, remarkable energy resolution, and ultrahigh light yield under Cs-137 gamma-ray radiation.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Physical
Siyu Yan et al.
Summary: The formability of antiperovskite [MX4]XA(3)-type can be predicted using analysis theory. A series of cesium-manganese antiperovskite single crystals were synthesized to validate the prediction model, showing high luminescence efficiency and stable luminescent color over a wide temperature range. The first all-inorganic cesium-manganese halide antiperovskite light-emitting diode was reported, demonstrating high external quantum efficiency, luminance, and operational stability.
ACS ENERGY LETTERS
(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, Multidisciplinary
Qingkun Kong et al.
Summary: The study introduced a unique phase transition strategy to engineer the emission color of lead-free cesium manganese bromides nanocrystals, achieving tunable red/green/blue emission with high color purity. Under humid conditions, both 1D and 0D nanocrystals can transform into 0D Cs2MnBr4.2 H2O nanocrystals, which can inversely transform back into a mixture of phases. This work highlights the tunable optical properties in single component nanocrystals through phase engineering, providing a new direction for future light-emitting devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Jingfeng Zheng et al.
Summary: K-ion solid-state electrolyte K3OI shows high ionic conductivity, with a solid-solid phase transition at 240 degrees Celsius leading to a 2 order of magnitude increase in ionic conductivity. Anion disorder in the I-O sublattice is found to be a potential mechanism for the observed phase transition. Ba-doped K3OI sample exhibits low activation energy and stability at high temperature after the phase transition.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Dan Han et al.
Summary: The emergence of halide double perovskites has opened up new possibilities for lead-free and stable photovoltaic absorbers. However, most halide double perovskites possess large band gaps or transitions that are not ideal for solar cell applications. By designing and screening pnictogen-based quaternary antiperovskites, researchers have identified five stable compounds with promising properties for photovoltaic applications, showing potential for efficiencies exceeding 29%, comparable to or higher than lead-based perovskites.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Xiaoming Li et al.
Summary: A Cs3Cu2I5:Mn scintillator with high light yield and thermal stability is introduced in this paper, which can improve the output efficiency of nuclear batteries. The mechanisms of radioluminescence enhancement are proposed.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Wenbo Ma et al.
Summary: By in situ growing Eu-doped CsPbBr3 QDs inside a transparent amorphous matrix to form a glass-ceramic scintillator, the crystallization of perovskite QDs was optimized, reducing light scattering and achieving high-resolution X-ray imaging. This approach provides an effective platform for improving the performance of perovskite nanocrystal scintillators.
Review
Chemistry, Multidisciplinary
Mingze Li et al.
Summary: This review summarizes the characteristics of zero-dimensional metal halides, including the classification of all-inorganic and organic-inorganic hybrid metal halides, and emphasizes the role of B-site cations in the photoluminescence process. It also discusses the self-trapped excitons model and photoluminescence regulation engineering to explore their unique photoluminescence properties and new application prospects.
CHEMICAL SOCIETY REVIEWS
(2021)
Review
Chemistry, Multidisciplinary
Jia Yuan et al.
Summary: Metal halide perovskites (MHPs) have emerged as promising semiconductor photocatalysts due to their high extinction coefficients, optimal band gaps, high photoluminescence quantum yields, and long electron-hole diffusion lengths. Despite their unstable ion-bonded crystal structures, there is growing interest in their potential applications in photocatalytic processes such as water splitting, carbon dioxide reduction, and organic conversion.
Article
Optics
Xiongjian Huang et al.
Article
Chemistry, Multidisciplinary
Fei Cao et al.
Review
Chemistry, Multidisciplinary
Yonggang Wang et al.
ADVANCED MATERIALS
(2020)
Article
Optics
Shisheng Lin et al.
LIGHT-SCIENCE & APPLICATIONS
(2020)
Article
Optics
Wenjuan Zhu et al.
LIGHT-SCIENCE & APPLICATIONS
(2020)
Article
Optics
Sangeun Cho et al.
LIGHT-SCIENCE & APPLICATIONS
(2020)
Article
Chemistry, Physical
Yuying Wu et al.
Article
Chemistry, Multidisciplinary
Bo Yang et al.
ADVANCED MATERIALS
(2019)
Article
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Fumiya Akitomo et al.
JOURNAL OF POWER SOURCES
(2019)
Article
Chemistry, Physical
Harish K. Singh et al.
CHEMISTRY OF MATERIALS
(2018)
Article
Multidisciplinary Sciences
Qiushui Chen et al.
Article
Materials Science, Multidisciplinary
Shichao Lv et al.
ADVANCED OPTICAL MATERIALS
(2018)
Editorial Material
Multidisciplinary Sciences
John A. Rowlands
Review
Engineering, Electrical & Electronic
Tetsuo Fukuchi et al.
IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING
(2016)
Article
Optics
Haotong Wei et al.
Article
Chemistry, Physical
R. Baran et al.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2016)
Article
Chemistry, Analytical
Maria Kogia et al.
Article
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Yanbin Wang et al.
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R. Kuhn et al.
JOURNAL OF POWER SOURCES
(2011)
