1
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Erroi A, Mecca S, Zaffalon ML, Frank I, Carulli F, Cemmi A, Di Sarcina I, Debellis D, Rossi F, Cova F, Pauwels K, Mauri M, Perego J, Pinchetti V, Comotti A, Meinardi F, Vedda A, Auffray E, Beverina L, Brovelli S. Ultrafast and Radiation-Hard Lead Halide Perovskite Nanocomposite Scintillators. ACS ENERGY LETTERS 2023; 8:3883-3894. [PMID: 37705701 PMCID: PMC10497040 DOI: 10.1021/acsenergylett.3c01396] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/03/2023] [Indexed: 09/15/2023]
Abstract
The use of scintillators for the detection of ionizing radiation is a critical aspect in many fields, including medicine, nuclear monitoring, and homeland security. Recently, lead halide perovskite nanocrystals (LHP-NCs) have emerged as promising scintillator materials. However, the difficulty of affordably upscaling synthesis to the multigram level and embedding NCs in optical-grade nanocomposites without compromising their optical properties still limits their widespread use. In addition, fundamental aspects of the scintillation mechanisms are not fully understood, leaving the scientific community without suitable fabrication protocols and rational guidelines for the full exploitation of their potential. In this work, we realize large polyacrylate nanocomposite scintillators based on CsPbBr3 NCs, which are synthesized via a novel room temperature, low waste turbo-emulsification approach, followed by their in situ transformation during the mass polymerization process. The interaction between NCs and polymer chains strengthens the scintillator structure, homogenizes the particle size distribution and passivates NC defects, resulting in nanocomposite prototypes with luminescence efficiency >90%, exceptional radiation hardness, 4800 ph/MeV scintillation yield even at low NC loading, and ultrafast response time, with over 30% of scintillation occurring in the first 80 ps, promising for fast-time applications in precision medicine and high-energy physics. Ultrafast radioluminescence and optical spectroscopy experiments using pulsed synchrotron light further disambiguate the origin of the scintillation kinetics as the result of charged-exciton and multiexciton recombination formed under ionizing excitation. This highlights the role of nonradiative Auger decay, whose potential impact on fast timing applications we anticipate via a kinetic model.
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Affiliation(s)
- Andrea Erroi
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Sara Mecca
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Matteo L. Zaffalon
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Isabel Frank
- CERN, Esplanade des Particules 1, 1211 Meyrin, Switzerland
- LMU
Munich, Geschwister-Scholl-Platz
1, 80539 Munich, Germany
| | - Francesco Carulli
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Alessia Cemmi
- ENEA
Fusion and Technology for Nuclear Safety and Security Department,
Casaccia R.C., Via Anguillarese 301, 00123 Rome, Italy
| | - Ilaria Di Sarcina
- ENEA
Fusion and Technology for Nuclear Safety and Security Department,
Casaccia R.C., Via Anguillarese 301, 00123 Rome, Italy
| | - Doriana Debellis
- Electron
Microscopy Facility, Istituto Italiano di
Tecnologia, 16163 Genova, Italy
| | - Francesca Rossi
- IMEM-CNR
Institute, Parco Area
delle Scienze 37/A, 43124 Parma, Italy
| | - Francesca Cova
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Kristof Pauwels
- ESRF
- The European Synchrotron, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Michele Mauri
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Jacopo Perego
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Valerio Pinchetti
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Angiolina Comotti
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Francesco Meinardi
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Anna Vedda
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | | | - Luca Beverina
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
| | - Sergio Brovelli
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano - Bicocca, via R. Cozzi 55, 20126 Milan, Italy
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Wu Y, Feng J, Yang Z, Liu Y, Liu S(F. Halide Perovskite: A Promising Candidate for Next-Generation X-Ray Detectors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 10:e2205536. [PMID: 36453564 PMCID: PMC9811474 DOI: 10.1002/advs.202205536] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/30/2022] [Indexed: 05/31/2023]
Abstract
In the past decade, metal halide perovskite (HP) has become a superstar semiconductor material due to its great application potential in the photovoltaic and photoelectric fields. In fact, HP initially attracted worldwide attention because of its excellent photovoltaic efficiency. However, HP and its derivatives also show great promise in X-ray detection due to their strong X-ray absorption, high bulk resistivity, suitable optical bandgap, and compatibility with integrated circuits. In this review, the basic working principles and modes of both the direct-type and the indirect-type X-ray detectors are first summarized before discussing the applicability of HP for these two types of detection based on the pros and cons of different perovskites. Furthermore, the authors expand their view to different preparation methods developed for HP including single crystals and polycrystalline materials. Upon systematically analyzing their potential for X-ray detection and photoelectronic characteristics on the basis of different structures and dimensions (0D, 2D, and 3D), recent progress of HPs (mainly polycrystalline) applied to flexible X-ray detection are reviewed, and their practicability and feasibility are discussed. Finally, by reviewing the current research on HP-based X-ray detection, the challenges in this field are identified, and the main directions and prospects of future research are suggested.
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Affiliation(s)
- Ya Wu
- College of Chemistry and Chemical EngineeringXi'an Shiyou UniversityXi'an710065China
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Jiangshan Feng
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Zhou Yang
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Yucheng Liu
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Shengzhong (Frank) Liu
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
- State Key Laboratory of CatalysisDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China
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3
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Wang M, Meng Y, Zhu Y, Song J, Yang J, Liu C, Zhu H, Yan D, Xu C, Liu Y. Afterglow-Suppressed Lu 2O 3:Eu 3+ Nanoscintillators for High-Resolution and Dynamic Digital Radiographic Imaging. Inorg Chem 2022; 61:11293-11305. [PMID: 35820030 DOI: 10.1021/acs.inorgchem.2c01417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lu2(1-x)Eu2xO3 nanoscintillators (x = 0.005, 0.01, 0.03, 0.05, 0.07, and 0.10) with red emission were synthesized by a coprecipitation method. It is found that their photo- and radioluminescence intensities increase with increasing Eu3+ concentration until x = 0.05. According to their concentration-dependent luminescence intensity ratios (I610(C2)/I582(S6)), the existing energy transfer from Eu3+(S6) (occupying S6 sites) to Eu3+(C2) (occupying C2 sites) can be confirmed. Based on the spectral data and density functional theory (DFT) calculations, the origin of Lu2O3:Eu3+ persistent luminescence at low concentration might be related to the tunneling processes between Eu3+ (occupying C2 and S6 sites) and oxygen interstitials (Oi×). After dispersing afterglow-suppressed Lu2O3:Eu3+ nanoscintillators into polymethyl methacrylate (PMMA) polymer-acetone solution, flexible PMMA-Lu2O3:Eu3+ composite films with high thermal stability and radiation resistance were fabricated by a doctor blade method. As the flexible composite film was used as an imaging plate, static X-ray images with high spatial resolution (5.5 lp/mm) under an extremely low dose of ∼1.1 μGyair can be acquired. When a watch with a moving second hand was used as an object, the dynamic X-ray imaging can be realized under a dose rate of 55 μGyair·s-1. Our results demonstrate that Lu2O3:Eu3+ nanoscintillators can be regarded as candidate materials for dynamic digital radiographic imaging.
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Affiliation(s)
- Mingwei Wang
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Yangqi Meng
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Yaqi Zhu
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Jia Song
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Jian Yang
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Chunguang Liu
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Hancheng Zhu
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Duanting Yan
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Changshan Xu
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Yuxue Liu
- School of Physics, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
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4
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Lu H, Xu X, Feng G, Sun B, Wang S, Wu S. Terbium doped LiLuF 4 nanocrystal scintillator-based flexible composite film for high resolution X-ray imaging. RSC Adv 2022; 12:4615-4623. [PMID: 35425475 PMCID: PMC8981464 DOI: 10.1039/d1ra08989g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 01/27/2022] [Indexed: 12/24/2022] Open
Abstract
Radiographic screens are widely used in high energy physics, national defense, aviation, radiodynamic therapy and medical imaging due to their scintillation materials that can transform high-energy particles or rays into ultraviolet (UV) visible light or other signals. In recent years, lanthanide doped fluoride nanocrystals (NCs) have attracted much attention due to their excellent optical properties and stability. In this work, multiple lanthanide-doped LiLuF4 nanocrystal scintillation materials were synthesized by thermal decomposition. Among them, Tb-doped LiLuF4 nanocrystals have high X-ray sensitivity and low detection limit (36.31 nGy s−1), which is much lower than the requirement of medical imaging dose rate. After the irradiation of 42.29 mGy s−1 X-ray for 1 hour, the intensity of radioluminescence basically remained unchanged. Based on the good properties of our nanocrystals, we further prepared the flexible film of nanocomposites with epoxy resin. This kind of uniform, large area, high loaded flexible film exhibits excellent performance in X-ray imaging with a spatial resolution greater than 20 line pairs per millimeter (LP/mm). The flexible scintillation film has high X-ray imaging spatial resolution, in which LiLuF4:15% Tb scintillation nanocrystals have excellent radioluminescence properties and low detection limits.![]()
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Affiliation(s)
- Hao Lu
- College of Chemistry and Materials Science, Fujian Normal University Fuzhou 350117 China.,Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
| | - Xieming Xu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Guiqing Feng
- College of Chemistry and Materials Science, Fujian Normal University Fuzhou 350117 China.,Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
| | - Baoping Sun
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
| | - Shuaihua Wang
- Fujian Science & Technology Innovation, Laboratory for Optoelectronic Information of China Fuzhou 350108 P. R. China.,Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
| | - Shaofan Wu
- Fujian Science & Technology Innovation, Laboratory for Optoelectronic Information of China Fuzhou 350108 P. R. China.,Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
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5
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Zheng B, Fan J, Chen B, Qin X, Wang J, Wang F, Deng R, Liu X. Rare-Earth Doping in Nanostructured Inorganic Materials. Chem Rev 2022; 122:5519-5603. [PMID: 34989556 DOI: 10.1021/acs.chemrev.1c00644] [Citation(s) in RCA: 151] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Impurity doping is a promising method to impart new properties to various materials. Due to their unique optical, magnetic, and electrical properties, rare-earth ions have been extensively explored as active dopants in inorganic crystal lattices since the 18th century. Rare-earth doping can alter the crystallographic phase, morphology, and size, leading to tunable optical responses of doped nanomaterials. Moreover, rare-earth doping can control the ultimate electronic and catalytic performance of doped nanomaterials in a tunable and scalable manner, enabling significant improvements in energy harvesting and conversion. A better understanding of the critical role of rare-earth doping is a prerequisite for the development of an extensive repertoire of functional nanomaterials for practical applications. In this review, we highlight recent advances in rare-earth doping in inorganic nanomaterials and the associated applications in many fields. This review covers the key criteria for rare-earth doping, including basic electronic structures, lattice environments, and doping strategies, as well as fundamental design principles that enhance the electrical, optical, catalytic, and magnetic properties of the material. We also discuss future research directions and challenges in controlling rare-earth doping for new applications.
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Affiliation(s)
- Bingzhu Zheng
- State Key Laboratory of Silicon Materials, Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jingyue Fan
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Bing Chen
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 999077, China
| | - Xian Qin
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Juan Wang
- Institute of Environmental Health, MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 999077, China
| | - Renren Deng
- State Key Laboratory of Silicon Materials, Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
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Jeong HY, Lee JH, Lee SY, Lee J, Cho SO. A Transparent Nano-Polycrystalline ZnWO 4 Thin-Film Scintillator for High-Resolution X-ray Imaging. ACS OMEGA 2021; 6:33224-33230. [PMID: 34901674 PMCID: PMC8656202 DOI: 10.1021/acsomega.1c05962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
Facile approaches for creating thin-film scintillators with high spatial resolutions and variable shapes are required to broaden the applicability of high-resolution X-ray imaging. In this study, a transparent nano-polycrystalline ZnWO4 thin-film scintillator was fabricated by thermal evaporation for high-resolution X-ray imaging. The scintillator is composed of nano-sized grains smaller than the optical wavelength range to minimize optical scattering. The high transparency of the scintillators affords a sufficiently high spatial resolution to resolve the 2 μm line and space patterns when used in a high-resolution X-ray imaging system with an effective pixel size of 650 nm. The thermal evaporation method is a convenient approach for depositing thin and uniform films on complex substrates. ZnWO4 thin-film scintillators with various shapes, such as pixelated and curved, were fabricated via thermal evaporation. The results show that the transparent nano-polycrystalline ZnWO4 thin-film scintillator deposited through thermal evaporation has a potential for use in various high-resolution X-ray imaging applications.
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7
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Chen K, Ren J, Zhao C, Liao F, Yuan D, Lei L, Zhao Y. High-sensitivity fiber-optic X-ray detectors employing gadolinium oxysulfide composites. OPTICS EXPRESS 2021; 29:22578-22592. [PMID: 34266017 DOI: 10.1364/oe.431770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Radiation detection technologies have been applied in broad fields such as security inspection, medical diagnosis, environment monitoring and scientific analysis. Fiber-optic radiation detectors exhibit unique advantages including miniaturization, resistance to water, remote monitoring, and distributable detection. However, the low sensitivity and the high limit-of-detection limit its practical applications. Herein we demonstrated high-performance fiber-optic X-ray detectors with scintillating composites consisting of UV glue and uniformly distributed gadolinium oxysulfide (GADOX) powders. The impacts of the length, thickness and GADOX weight ratio of the composite coating upon the detector performance, were systematically investigated in terms of the generation and the coupling efficiency of radio-luminescence. Besides the high-performance scintillator, the scattering loss and the geometric factor greatly affected the detector performance. A higher sensitivity and lower limit-of-detection could be achieved by increasing the GADOX weight ratio and decreasing the thickness simultaneously. The optimal detector with the highest GADOX weight ratio (70%), exhibited a linear sensitivity to the X-ray dose rate within 31-1575 µGyair/s, and a low limit-of-detection of ∼0.26 µGyair/s at a tube voltage of 120 kV. The mechanism discussed here will provide insightful guidance for further development of fiber-optic radiation detectors and these promising results demonstrate the potential applications of fiber-optic detectors.
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Zhu Z, Liu B, Tang H, Cheng C, Gu M, Xu J, Zhang C, Ouyang X. Hollow nanosphere arrays with a high-index contrast for enhanced scintillating light output from β-Ga 2O 3 crystals. OPTICS EXPRESS 2021; 29:6169-6178. [PMID: 33726143 DOI: 10.1364/oe.418746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
β-Ga2O3 is a new type of fast scintillator with potential applications in medical imaging and nuclear radiation detection with high count-rate situations. Because of the severe total internal reflection with its high refractive index, the light extraction efficiency of β-Ga2O3 crystals is rather low, which would limit the performance of detection systems. In this paper, we use hollow nanosphere arrays with a high-index contrast to enhance the light extraction efficiency of β-Ga2O3 crystals. We can increase the transmission diffraction efficiency and reduce the reflection diffraction efficiency through controlling the refractive index and the thickness of the shell of the hollow nanospheres, which can lead to a significant increase in the light extraction efficiency. The relationships between the light extraction efficiency and the refractive index and thickness of the shell of the hollow nanospheres are investigated by both numerical simulations and experiments. It is found that when the refractive index of the shell of the hollow nanospheres is higher than that of β-Ga2O3, the light extraction efficiency is mainly determined by the diffraction efficiency of light transmitted from the surface with the hollow nanosphere arrays. When the refractive index of the shell is less than that of β-Ga2O3, the light extraction efficiency is determined by the ratio of the diffraction efficiency of the light transmitted from the surface with the hollow nanosphere arrays to the diffraction efficiency of the light that can escape from the lateral surface.
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9
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Gupta SK, Mao Y. Recent advances, challenges, and opportunities of inorganic nanoscintillators. FRONTIERS OF OPTOELECTRONICS 2020; 13:156-187. [PMID: 36641550 PMCID: PMC9743955 DOI: 10.1007/s12200-020-1003-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/19/2020] [Indexed: 05/11/2023]
Abstract
This review article highlights the exploration of inorganic nanoscintillators for various scientific and technological applications in the fields of radiation detection, bioimaging, and medical theranostics. Various aspects of nanoscintillators pertaining to their fundamental principles, mechanism, structure, applications are briefly discussed. The mechanisms of inorganic nanoscintillators are explained based on the fundamental principles, instrumentation involved, and associated physical and chemical phenomena, etc. Subsequently, the promise of nanoscintillators over the existing single-crystal scintillators and other types of scintillators is presented, enabling their development for multifunctional applications. The processes governing the scintillation mechanisms in nanodomains, such as surface, structure, quantum, and dielectric confinement, are explained to reveal the underlying nanoscale scintillation phenomena. Additionally, suitable examples are provided to explain these processes based on the published data. Furthermore, we attempt to explain the different types of inorganic nanoscintillators in terms of the powder nanoparticles, thin films, nanoceramics, and glasses to ensure that the effect of nanoscience in different nanoscintillator domains can be appreciated. The limitations of nanoscintillators are also highlighted in this review article. The advantages of nanostructured scintillators, including their property-driven applications, are also explained. This review article presents the considerable application potential of nanostructured scintillators with respect to important aspects as well as their physical and application significance in a concise manner.
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Affiliation(s)
- Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Yuanbing Mao
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, 60616, USA.
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10
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Gao J, Yin J, Tao Z, Liu Y, Lin X, Deng J, Wang S. An Ultrasensitive Fluorescence Sensor with Simple Operation for Cu 2+ Specific Detection in Drinking Water. ACS OMEGA 2018; 3:3045-3050. [PMID: 31458569 PMCID: PMC6641449 DOI: 10.1021/acsomega.7b01497] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/05/2018] [Indexed: 06/10/2023]
Abstract
Whether short-term or long-term, overexposure to an abnormal amount of copper ion does significant harm to human health. Considering its nonbiodegradability, it is critical to sensitively detect copper ion. Herein, a novel fluorescent strategy with a "turn-on" signal was developed for highly sensitive and specific detection of copper ion (Cu2+). In the present investigation, we found that Cu2+ exhibits excellent peroxidase-like catalytic activity toward oxidizing the nonfluorescent substrate of Amplex Red into the product of resofurin with outstanding fluorescence emission under the aid of H2O2. Thus, an enzyme-free and label-free sensing system was constructed for copper ion detection with quite simple operation. To ensure the detection sensitivity and reproducibility, the amount of H2O2 and incubation time were optimized. The limit of detection can reach as low as 1.0 nM. In addition, the developed assay demonstrated excellent specificity and could be utilized to detect copper ion in water samples including tap water and bottled purified water without standing recovery.
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Affiliation(s)
- Jinting Gao
- Key
Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin
Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Jinjin Yin
- Key
Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin
Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zhanhui Tao
- Key
Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin
Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yaqing Liu
- Key
Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin
Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Xiaodong Lin
- Key
Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin
Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Jiankang Deng
- Key
Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin
Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Shuo Wang
- Key
Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin
Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
- Tianjin
Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 30071, China
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