Efficient Organic D‐π‐A Scintillators for Temperature‐Adaptive X‐Ray Imaging DOI
Jing Sun,

Meijuan Ding,

Huili Ma

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Июнь 4, 2025

Abstract Achieving highly efficient organic scintillators for X‐ray imaging remains a significant challenge, primarily owing to the inherent difficulty in facilitating rapid radiative decays of both singlet and triplet excitons. To address this limitation, novel design strategy is introduced that incorporated fluorine atoms modify π‐bridge D‐π‐A molecules, thereby fine‐tuning their electronic structures photophysical properties. The emitters, namely 1FAT 2FAT, show excellent thermally activated delayed fluorescence (TADF), aggregation‐induced (AIDF), room temperature phosphorescence (RTP) excited by ultraviolet light varying with surrounding environments. Notably, doped PMMA film exhibites intense emission across broad range from 77 363 K, showcasing its adaptability diverse thermal conditions. More importantly, 1FAT@PMMA exhibits radioluminescence performance under excitation low detection limit 62.27 nGy s −1 high spatial resolution over 20 lp mm . This study introduces fundamental developing efficient, temperature‐adaptive scintillators, significantly expanding potential applications flexible, stretchable detectors advanced technologies.

Язык: Английский

Thermal‐Adaptive Photonic MOFs for High‐Performance X‐ray Scintillator DOI Open Access
Hongjun Li,

Qianghui Dong,

Yi Li

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Dynamic responsive scintillating materials play a significant role in advanced radiation detection technology. However, the issues such as thermal quenching, uncontrollable structure, and unsatisfactory cost, still remain obstacles to diversified development of recent scintillators. Herein, strategy is proposed by assembling well‐designed inorganic organic building units with low cost construct series novel lanthanide MOFs for thermal‐adaptive X‐ray scintillators (TAXS). Based on delicate energy level design, as‐obtained TAXS present ultra‐high relative light yield (max ≈49 700 photons MeV −1 ), tunable luminescence (from green red band), dose rate limit (min ≈118.7 nGy air s ). Importantly, these exhibit unique behaviors including thermal‐facilitated metal‐ligand distance contraction X‐ray‐induced carrier generation, resulting obvious enhanced radio‐luminescence. They maintain perfect linear response (R 2 > 99.8%) excellent stability (>95% after 215 Gy irradiation) during heat treatment. Both TAXS‐based membranes high imaging resolution ≈24 lp mm ) inks customizable printing demonstrate potential work normally at elevated temperatures. Such supports photonic functional fabricate high‐performance harsh condition services.

Язык: Английский

Процитировано

1
Zero-Dimensional Organic–Inorganic Hybrid Manganese Halides for Low-Temperature X-Ray Imaging Scintillators DOI

Alaa M. Almushaikeh,

Simil Thomas, Issatay Nadinov

и другие.

The Journal of Physical Chemistry C, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Язык: Английский

Процитировано

0
Scintillators with aggregation-induced emission DOI
Shengyi Yang, Liang Zhang, Fan‐Cheng Kong

и другие.

Chem, Год журнала: 2025, Номер unknown, С. 102534 - 102534

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Tailoring Noncovalent Interactions for Optimal Ultrafast X‐Ray Scintillation in Organic Cocrystals DOI
Yuxing Deng, Wanglong Hong, Xinqi Xu

и другие.

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
Monitoring α/β Particles Using a Copper Cluster Scintillator Detector DOI

Qiuchen Peng,

Ruoyu Cao,

Qi Yang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Abstract High‐energy radiation is widely used in medicine, industry, and scientific research. Meanwhile, the detection of environmental ionizing essential to ensure safe use high‐energy radiation. Among detectors, scintillator detectors offer multiple advantages, including simple structure, high sensitivity, excellent adaptability, a favorable performance‐to‐price ratio. However, development high‐performance scintillators that can provide highly sensitive responses radiation, especially α/β particles, remains challenge. In this work, copper cluster ( Cu 4 I (DPPPy) 2 ) with water‐oxygen stability prepared using one‐pot method at room temperature. not only exhibits X‐ray excited luminescence (XEL) under irradiation but also demonstrates scintillation response particles. By integrating photomultiplier tube (PMT) nuclear electronics, an surface contamination monitor successfully developed. This enables excessive particles real‐world environments. The frequency signal intensity significantly surpass those commercial YAP:Ce, BGO, PbWO , anthracene identical conditions, highlighting promising application metal clusters low‐dose detection.

Язык: Английский

Процитировано

0
Organic–Inorganic Hybrid Manganese(II) Halides with Reversible Thermochromic Luminescence for Anti-Counterfeiting and X-ray Imaging DOI
Wenzhen Lv, Ying Tang,

Chaofei Han

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 26, 2025

Thermochromic scintillators with high electron and hole generation capacity after X-ray irradiation have gained significant attention for anticounterfeiting imaging applications. However, achieving luminescent compounds highly efficient reversible thermochromic luminescence radioluminescence remains a challenge. In this study, we reported two novel cost-effective zero-dimensional (0D) Mn(II)-based halide hybrids, designated as (4-PP)2MnX4 (4-PP = 4-phenylpyridine; X Cl, Br), bright narrow-band green emissions remarkably photoluminescence quantum yields of 90.7% 94.6%, respectively. Notably, distinct behavior, shifting from to red emission temperature variation, was observed under ambient conditions. Furthermore, (X Br) demonstrated impressive steady-state light 42 000 48 photons MeV-1, alongside low detectable limits 79.2 56.6 nGyair s-1. The combination pronounced color changes exceptional radiative properties positions these materials promising candidates applications in situ thermally responsive imaging. This research marks advance the design high-efficiency materials, offering blueprint future into multifunctional tailored advanced technologies.

Язык: Английский

Процитировано

0
Efficient Organic D‐π‐A Scintillators for Temperature‐Adaptive X‐Ray Imaging DOI
Jing Sun,

Meijuan Ding,

Huili Ma

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Июнь 4, 2025

Abstract Achieving highly efficient organic scintillators for X‐ray imaging remains a significant challenge, primarily owing to the inherent difficulty in facilitating rapid radiative decays of both singlet and triplet excitons. To address this limitation, novel design strategy is introduced that incorporated fluorine atoms modify π‐bridge D‐π‐A molecules, thereby fine‐tuning their electronic structures photophysical properties. The emitters, namely 1FAT 2FAT, show excellent thermally activated delayed fluorescence (TADF), aggregation‐induced (AIDF), room temperature phosphorescence (RTP) excited by ultraviolet light varying with surrounding environments. Notably, doped PMMA film exhibites intense emission across broad range from 77 363 K, showcasing its adaptability diverse thermal conditions. More importantly, 1FAT@PMMA exhibits radioluminescence performance under excitation low detection limit 62.27 nGy s −1 high spatial resolution over 20 lp mm . This study introduces fundamental developing efficient, temperature‐adaptive scintillators, significantly expanding potential applications flexible, stretchable detectors advanced technologies.

Язык: Английский

Процитировано

0