Materials Today Chemistry, Год журнала: 2024, Номер 41, С. 102307 - 102307
Опубликована: Сен. 14, 2024
Язык: Английский
Chemistry of Materials, Год журнала: 2025, Номер 37(5), С. 1716 - 1740
Опубликована: Фев. 26, 2025
X-ray photon-counting detectors (PCDs) are a rapidly developing technology. Current PCDs used in medical imaging based on CdTe, CZT, or Si semiconductor detectors, which directly convert photons into electrical pulses. An alternative approach is to combine ultrafast scintillators with silicon photomultipliers (SiPMs). Here, an overview presented of different classes scintillators, the aim assessing their potential application scintillator-SiPM indirect PCDs. To this end, three figures merit (FOMs) defined: pulse intensity, duration, and quality. These FOMs quantify how characteristics such as light yield, shape, energy resolution affect suitability for emissive characteristics; fourth FOM (ρZeff3.5) also take stopping power account. Other important properties selection process include low self-absorption, after-glow, possibility produce sub-mm pitch pixel arrays, cost-effectiveness. It shown that material promising emission Ce3+- Pr3+-doped materials, near band gap exciton emitters, plastics, core–valence materials. Possible shortcomings each these groups, e.g., suboptimal wavelength, nonproportionality, density, discussed. Additionally, engineering quenching scintillator emission, resulting targeted shortening decay time, codoping explored. When selecting and/or material, it consider not only but relevant SiPM properties, recharge time photodetection efficiency.
Язык: Английский
Процитировано
0
The Journal of Physical Chemistry C, Год журнала: 2025, Номер unknown
Опубликована: Март 25, 2025
Язык: Английский
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Апрель 7, 2025
This review explores the pivotal role of scintillators in biomedical applications, with a particular emphasis on their utilization context X-ray excitation. It commences an in-depth analysis two predominant categories scintillators: inorganic and organic, meticulously delineating distinctive properties respective applications. The discourse subsequently advances to explore critical applications X-ray-excited (XESs), underscoring significant advancements medical imaging, radiation detection, dosimetry. Moreover, identifies prevailing challenges limitations deployment these for purposes, thereby establishing robust foundation ongoing research endeavors. outlines potential directions, advocating interdisciplinary collaborations overcome existing barriers. By synthesizing current knowledge identifying areas future investigation, this aims guide researchers enhancing efficacy application science.
Язык: Английский
Процитировано
0
Laser & Photonics Review, Год журнала: 2025, Номер unknown
Опубликована: Апрель 23, 2025
Abstract Interfacial molecular engineering of rare earth‐doped nanocrystals (RE NCs) by incorporating surface organic emitters is receiving widespread attention in the area functional nanomaterials. The resulting organic–inorganic nanoconjugates are able to integrate individual strengths and show exciting optical/electrical/magnetic functionalities. However, there a shortage systematic reviews reporting most recent progress interfacial RE NCs. Thereby, this review presents comprehensive timely perspective on advances crucial theoretical knowledge first summarized, ranging from luminescence mechanism molecules/RE NCs energy transfer mechanisms at interface. Construction protocols for coupling molecules then discussed, including chemical coordination physical adsorption pathways. In particular, beyond traditional bio‐imaging/therapy, advanced applications enabled interface outlined, not limited photoexcited 3D printing, light‐induced photochromism/deformation, micro‐modification, dynamic procedure regulation. Finally, challenges perspectives presented accelerate future provide research guidance This provides deeper broader understanding NC pushes technology closer practical applications.
Язык: Английский
Процитировано
0
CrystEngComm, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
High quality Bmpip 2 SnBr 4 :12% Cu + single crystal scintillator was successfully prepared by space-limited slow cooling crystallization in aqueous solution. The optimized scintillators present ultrafast lifetime and excellent light yield.
Язык: Английский
Процитировано
0
Advanced Optical Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 28, 2025
Abstract The trade‐off between high radioluminescence (RL) and fast decay time is a common challenge facing almost all X‐ray scintillators. Organic fluorescence scintillators, with ultrafast response, readily available, low cost, are promising for imaging detection. Here, organic cocrystals of halogen‐bonded acceptors donors heavy halogen atoms (Br I) designed fabricated to achieve RL simultaneously. noncovalent interactions in play the following roles: 1) strong bonds C≡N···X (X = I, Br) promoted by providing effective pathways electron transfer, whereas relatively weaker C–X···π do not contribute this enhancement. 2) Halogen‐bonded can accelerate decay, resulting as interaction strength increases. 3) π–π modified their molecular packing affect fluorescence. Through modulation these interactions, cocrystal 1,4‐bis‐p‐cyanostyrylbenzene (CSB) 1,4‐diiodotetrafluorobenzene (IFB) exhibited best scintillation performance lifetime 0.58 ns detection limit 144.59 nGy s −1 , achieving resolution 10 lp mm . design combined cocrystallization strategy provides new insights into designing scintillator advanced applications.
Язык: Английский
Процитировано
0
Optical Materials X, Год журнала: 2024, Номер unknown, С. 100380 - 100380
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 1, 2024
Abstract Additive manufacturing technology is exploited for the first time to build a complex geometry scintillator using thermosetting photocurable resin filled by lead halide perovskite as an active material. To this aim, innovative nanocomposite developed based on Cs 4 PbBr 6 powders fillers and matrix, adopting stereolithography process. The use of high‐Z lead‐based filler needed detection ionizing radiation conversion into visible light, while polymer matrix provides 3D printability. On one hand, inclusion perovskite‐based in does not affect rheological behavior photocuring properties making composite suitable printing stereolithography. other presence emission leading development fast response with significantly improved environmental stability. This work opens avenue completely new class plastic scintillating materials.
Язык: Английский
Процитировано
2
Open Ceramics, Год журнала: 2024, Номер 19, С. 100642 - 100642
Опубликована: Июль 14, 2024
Filling the cyan gap is key element in achieving full-spectrum illumination using violet chip to excite red, green and blue phosphors. However, designing phosphors suitable for light excitation with excellent performance remains challenging. Herein, a novel phosphor Ba9Lu2-x-nSi6O24:xCe (n-BLS:Ce) multiple crystal sites of Ba2+ Lu3+ Ce3+ ions was designed prepared via crystal-site engineering. The at emit ultraviolet 385 nm under 325 excitation, 485 395 excitation. favorable occupation could be realized by introducing Lu vacancies. Significantly, emission intensity Ba9Lu1.4Si6O24:0.3Ce (n0.3-BLS:Ce) vacancies effectively improved 47 % compared Ba9Lu1.7Si6O24:0.3Ce (n0-BLS:Ce) without And 150 °C retains 96 that room temperature. color rendering index increases from 87.9 94.5 after supplementing w-LEDs devices combining commercial green, chip, indicating its potential practical application lighting. This work also provides new ideas design development efficient high-quality light-emitting materials.
Язык: Английский
Процитировано
1
Journal of the European Ceramic Society, Год журнала: 2024, Номер 44(16), С. 116783 - 116783
Опубликована: Июль 27, 2024
Язык: Английский
Процитировано
1