Nature Communications
·
2021
·Vol. 12
·期 1
·1-9
·
IF 14.919
Li Xiaoming,Chen Jiaxin,Yang Dandan,Chen Xi,Geng Dongling,Jiang Lianfu,Wu Ye,Meng Cuifang,Zeng Haibo
Fluorescent type nuclear battery consisting of scintillator and photovoltaic device enables semipermanent power source for devices working under harsh circumstances without instant energy supply. In spite of the progress of device structure design, the development of scintillators is far behind. Here, a Cs 3 Cu 2 I 5 : Mn scintillator showing a high light yield of ~67000 ph MeV −1 at 564 nm is presented. Doping and intrinsic features endow Cs 3 Cu 2 I 5 : Mn with robust thermal stability and irradiation hardness that 71% or >95% of the initial radioluminescence intensity can be maintained in an ultra-broad temperature range of 77 K-433 K or after a total irradiation dose of 2590 Gy, respectively. These superiorities allow the fabrication of efficient and stable nuclear batteries, which show an output improvement of 237% respect to the photovoltaic device without scintillator. Luminescence mechanisms including self-trapped exciton, energy transfer, and impact excitation are proposed for the anomalous dramatic radioluminescence improvement. This work will open a window for the fields of nuclear battery and radiography.
研究领域:
材料科学
·
核能工程
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED MATERIALS
·
2019
·Vol. 31
·期 44
·1904711
·
IF 25.809
Bo Yang,Lixiao Yin,Guangda Niu,Jun-Hui Yuan,Kan-Hao Xue,Zhifang Tan,Xiang-Shui Miao,Ming Niu,Xinyuan Du,Haisheng Song,Efrat Lifshitz,Jiang Tang
Scintillators are widely utilized for radiation detections in many fields, such as nondestructive inspection, medical imaging, and space exploration. Lead halide perovskite scintillators have recently received extensive research attention owing to their tunable emission wavelength, low detection limit, and ease of fabrication. However, the low light yields toward X-ray irradiation and the lead toxicity of these perovskites severely restricts their practical application. A novel lead-free halide is presented, namely Rb 2 CuBr 3 , as a scintillator with exceptionally high light yield. Rb 2 CuBr 3 exhibits a 1D crystal structure and enjoys strong carrier confinement and near-unity photoluminescence quantum yield (98.6%) in violet emission. The high photoluminescence quantum yield combined with negligible self-absorption from self-trapped exciton emission and strong X-ray absorption capability enables a record high light yield of ≈91056 photons per MeV among perovskite and relative scintillators. Overall, Rb 2 CuBr 3 provides nontoxicity, high radioluminescence intensity, and good stability, thus laying good foundations for potential application in low-dose radiography.
研究领域:
材料科学
·
辐射探测技术
✓ 已验证
DOI
高影响因子
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
·
2019
·
IF 1.433
Sangmin Lee,Jaebum Son,Dong Geon Kim,Joonbum Choi,Yong Kyun Kim
Production of plastic scintillators using 3D printing technology has gained increased interest, and related researches are being published. However, research results show that the performance of plastic scintillators, such as light yield or decay time, is still poor compared to that of commercial products. In order to improve the scintillator performance, a UV-curable solution was prepared by applying ADS148BE, a new wavelength shifter, from which a plastic scintillator was fabricated using a UV LED curing machine. The maximum emission wavelength of the prepared scintillator occurred at 429 nm. The transmittance at peak emission was 49%. The scintillation efficiency was measured to be 43% of BC408 (Saint-Gobain Crystals). The light yield was determined to be 35% of BC408. It is about 1.9 times better than that of a scintillator fabricated by a UV lamp of a previously published paper [12]. The light output was estimated as 33.7% of BC408. The decay time was approximately 2.46 ns. This is the relative value measured after setting the decay time of the reference scintillator to match the manufacturer’s data. Compared to the UV-curable plastic scintillator of previously reported studies, we have improved the overall performance of our sample and will be able to make precise shapes with a 3D printer.
研究领域:
材料科学
·
核技术
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Zhi-Zhong Zhang,Jun-Hua Wei,Jian-Bin Luo,Xu-Dong Wang,Zi-Lin He,Dai-Bin Kuang
Current X-ray imaging scintillators are dominated by inorganic scintillators grown through a high-temperature process. Exploring new types of scintillators with mild growth conditions, high light yields, and eco-friendly chemical compositions is essential and challenging. Herein, the zero-dimensional large-area laminar organic–inorganic hybrid metal halide TEA2MnI4 (TEA = tetraethylammonium) single crystal with dimensions of 50 mm × 60 mm × 0.82 mm is grown via a local-heating solvent evaporation method. Compared with its Cl- and Br-based counterparts, the incorporation of the iodine component enhances the X-ray attenuation ability and significantly accelerates the decay of the photoluminescence of TEA2MnI4. Interestingly, the prepared TEA2MnI4 exhibits a high transmittance of >90% over the range of 515–765 nm and exhibits a high light yield of 26288 photons/MeV, which provides the prerequisite for high-resolution X-ray imaging. The TEA2MnI4 single-crystal scintillator displays an astonishing spatial resolution exceeding 25 line pairs per millimeter, which provides a design concept for a Mn–I-based single crystal for high-performance scintillator applications.
研究领域:
材料科学
·
医学影像学
✓ 已验证
DOI
PubMed
高影响因子
ACS Omega
·
2024
·
IF 3.7
Jiali Yao,Dan Huang,Xudong Hu,Haiming Cheng,Dayang Wang,Xiaoming Li,Wensheng Yang,Renguo Xie
Scintillators have garnered heightened attention for their diverse applications in medical imaging and security inspection. Nonetheless, commercial scintillators encounter challenges with costly rare-earth metals and toxic elements like thallium (Tl), driving the need for sustainable, cost-effective, and eco-friendly alternatives to meet contemporary X-ray detection demands. This study focuses on exploring the potential of Cu+-doped Rb2AgI3 as an effective metal halide (MH) scintillator. One-dimensional (1D) Rb2AgI3 and Cu+-doped Rb2AgI3 single crystals (SCs) were synthesized by using the conventional temperature-lowering crystallization method. When excited by UV light, Cu+-doped SCs emitted a broad sky-blue light at 490 nm with a high photoluminescence (PL) quantum yield (PLQY) of 76.48%. Remarkably, under X-ray excitation, these Cu+-doped SCs demonstrated an outstanding light yield of 36,293 photons MeV–1, a relatively low detection threshold of 1.022 μGyair s–1, and a rapid scintillation decay time of 465 ns. The prepared translucent scintillation film has good uniformity and flexibility, with a high spatial resolution of 10.2 lp mm–1. These results position Cu+-doped Rb2AgI3 as a leading candidate among promising X-ray scintillators, offering superior scintillation light yield, excellent stability, and nontoxicity.
研究领域:
材料科学
·
放射医学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Yong Li,Dedan Mu,Jing Yu,Zheng Wei,Man Zhang,Peng Zhang,Feng Zhang,Yinxi Liu,Pin Xiang,Zhaohong Li,Jianbei Qiu,Bitao Liu
Halide perovskites with excellent thermal stability will have better application prospects in the field of X-ray scintillation detectors. However, conventional scintillators exhibit low thermal stability, which limits their effectiveness in practical applications. In this study, we designed and developed a Cs 2 CuCl 4 scintillator with enhanced thermal stability. Through the preparation of Cs 2 CuCl 4 and the execution of heating and cooling cycle tests, we demonstrated that the Cs 2 CuCl 4 scintillator possesses high thermal stability. This stability is attributed to the high valence stability of the divalent copper ions, which are positioned in stable tetrahedral centers, thereby enhancing their structural integrity. The scintillator achieves a high steady-state light yield of 42,260 photons MeV −1 and exhibits the highest spatial resolution for powder-based scintillation screens at 20 lp mm −1 after undergoing cyclic treatment within the temperature range of 323 K to 673 K. Furthermore, the scintillator is capable of visualizing the melting of alloys, indicating its significant potential for application in high-temperature environments. This study offers a novel perspective on the design of scintillators with high thermal stability.
研究领域:
材料科学
·
物理学
·
医学影像
✓ 已验证
产品关联
DOI
高影响因子
Chinese Physics B
·
2025
·
IF 1.5
Rui-Qiang Song,Chuang Liu,Yi-Yang Long,Ji-Feng Han,Jing Ren,Sen Qian
The development of low-cost and highly efficient thermal neutron detection materials to substitute the rare and expensive 3He gas is important for the area. Lithium-based glass (Li glass) is a promising candidate due to its simple fabrication process and low cost. This paper reports the optical properties and scintillation performance of a new Ce3+-doped Li glass, whose luminescence efficiency is significantly enhanced with a light yield of about 4770 ph/MeV, which is about 54% of that of BGO crystal, and the energy resolution is 14.5% for 662 keV gamma rays. The Ce3+-doped Li glass showed a high light yield of about 7058 ph/neutron, which is about 1.18 times that of the reference GS20 glass. The Ce3+ doped Li glass exhibits stronger gamma rays suppression capability compared to GS20 glass samples. Further optimizing the Ce3+ concentration and 6Li content is expected to achieve much superior neutron detection efficiency, positioning it as a promising alternative to 3He gas for efficient thermal neutron detection.
研究领域:
材料科学
·
核技术应用
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2017
·
IF 3.454
Xianqiang Chen,Haiming Qin,Ye Zhang,Jun Jiang,Yiquan Wu,Haochuan Jiang
Ce 3+ -doped Gd 3 (Al 1-x Ga x ) 5 O 12 (Ce:GAGG) transparent ceramics were successfully prepared via a solid state reaction/oxygen sintering method. The effects of Ga substitution on the structure and optical properties of the ceramics were investigated. The highest quantum yield and relatively high scintillation light yield were achieved in the Gd 3 (Al 0.6 Ga 0.4 ) 5 O 12 . The investigated processing technique demonstrated advantages such as increased flexibility and short processing time, thus being very cost effective. The investigated approach provides a much more economical alternative to the conventional melt growth processes used to fabricate single crystals.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Crystals
·
2025
·Vol. 15
·期 8
·716
·
IF 2.4
Yang Li,Xue Du,Silong Zhang,Bo Liu,Naizhe Zhao,Yapeng Zhang,Xiaoping Ouyang
Thin-film detection technology plays a significant role in particle physics, X-ray imaging and radiation monitoring. In this paper, the detection capability of a Cs3Cu2I5thin-film scintillator toward α particles is investigated. The flexible thin-film scintillator is fabricated by a facile and cost-effective in situ strategy, exhibiting excellent scintillation properties. Upon α-particle excitation, the light yield of the Cs3Cu2I5thin-film is 2400 photons/MeV, which greatly benefits its application for single-particle events detection. Moreover, it shows linear energy response within the range of 4.7–5.5 MeV and moderate decay time of 667 ns. We further explored the cryogenic scintillation performance of Cs3Cu2I5@PMMA film. As the temperature decreases from 300 K to 50 K, its light yield gradually increases to 1.3 fold of its original value, while its decay time remains almost unchanged. This scintillator film also shows excellent low-temperature stability and flexible operational stability. This work demonstrates the great potential of the Cs3Cu2I5@PMMA film for the practical utilization in α-particle detection application.
研究领域:
粒子物理
·
辐射探测
·
材料科学
·
核工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Instrumentation
·
2023
·Vol. 18
·期 07
·P07039
·
IF 1.3
Ye Liang,Tong Xu,Jialiang Zhang,Shuo Li,Ming Qi,Zhe Wang
The lithium chloride aqueous solution has great potential to
be the detection medium of a novel solar neutrino detector. The
nuclide 7Li provides a charged-current interaction channel with a
high cross-section for the MeV-scale solar electron-neutrinos,
enabling measurement of the solar neutrino spectrum. This work
measures the optical properties and the light yields of a saturated
lithium chloride solution. After adsorption with activated carbon
and recrystallization, the solution shows little absorption in the
sensitive wavelength range of the bialkali photomultipliers. The
attenuation length is evaluated to reach 50 meters at 430 nm. In
addition to being a pure Cherenkov detector medium, a wavelength
shifter, carbostyril 124, is added to the LiCl aqueous solution. The
compatibility and the enhancement of the light yield are confirmed,
enabling the development of a water-based Cherenkov-enhanced
lithium-rich detector.
研究领域:
物理学
·
天文学
·
核科学
✓ 已验证
DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2019
·Vol. 26
·期 8
·1-9
·
IF 1.53
Xu Yewei,Deng Hongyang,Lei Hong,Chang Guanjun
A series of polystyrene-based scintillators have been prepared by thermal polymerization without any initiators. To investigate the influence of the primary additive and wavelength shifter on the performance of plastic scintillator, two primary additives and four wavelength shifters were added to the scintillators, respectively. The results showed that 2,5-diphenyloxazole (PPO) and 5-phenyl-2-[4-(5-phenyl-1,3-oxazol-2-yl)phenyl]-1,3-oxazole (POPOP) were the most adequate fluorescent dyes for initiator-free preparation of the polystyrene-based scintillators. The plastic scintillator containing 1% PPO and 0.02% POPOP possessed the highest fluorescence intensity. Initiator-containing polystyrene-based scintillator with the same concentration of PPO and POPOP (1% PPO, 0.02% POPOP and 0.01% AIBN) was also prepared. The light yield of the plastic scintillator without any initiators is 83.49% relative to the value of the standard sample EJ-200, which is higher 8% than that of initiator-containing plastic scintillator. Moreover, compared with the standard sample EJ-200 with a decay time of 2.09 s, the decay time of the initiator-free and initiator-containing plastic scintillator was 1.80s and 1.86 s, respectively.
研究领域:
材料科学
·
核技术应用
✓ 已验证
产品关联
DOI
高影响因子
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
·
2025
·
IF 1.9
Yingming Wang,Lingyan Xu,Lu Liang,Binghui Zhang,Zhentao Qin,Chongqi Liu,Lixiang Lian,Wei Zheng,Yanyan Lei,Qinzeng Hu,Shuai Song,Tao Wang,Wanqi Jie
Exploring organic single crystals that can reliably operate in high-temperature environments is crucial for advancing fast neutron detection in extreme conditions. In this study, large-sized (34 × 20 × 8 mm3) and high-quality 9,10-diphenylanthracene (DPA) single crystals were grown using a seed-assisted temperature-reduced crystallization method. The crystals showed strong thermal stability with a melting point of 252.4 °C. Under γ-ray excitation, the crystals demonstrated a high light yield of 25,776 photons/MeV with excellent linearity over a broad energy spectrum. Their radiation detection performance was systematically investigated under variable temperature conditions. Temperature-dependent pulse height spectrum revealed a steady increase in light output from -20 °C to 10 °C, followed by a significant decrease beyond 50 °C. However, the DPA detector retains 72.1% of its light output at 150 °C compared to 20 °C, demonstrating its excellent performance at high temperatures. Neutron/gamma pulse shape discrimination(PSD) was tested from −25 °C to 45 °C. At room temperature, the detector achieved a maximum figure of merit (FOM) of 3.82 at 2900 ± 100 keVee. Importantly, across the entire −25 °C to 45 °C range, the FOM remained above 1.5 for energies above 200 keVee, demonstrating stable PSD performance. These results collectively demonstrate the strong overall performance of DPA single crystals in both light yield and neutron/gamma discrimination. These findings underscore the great potential of DPA single crystals for fast neutron detection in high-temperature environments, establishing them as a valuable material for future applications in extreme conditions.
研究领域:
核医学
·
辐射探测
·
材料科学
·
核物理
·
仪器科学与技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）