Recent Trends in Elpasolite Single Crystal Scintillators for Radiation Detection

Jin, Taiguang; Hao, Shuwei; Shang, Yunfei; Lei, Zuotao; Yang, Chunhui

doi:10.3390/cryst12070887

Cited by 9 publications

(8 citation statements)

References 65 publications

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“…In particular, halide scintillation crystals present a high light output and excellent energy resolution, including LaBr 3 :Ce, SrI 2 :Eu, CLYC (Cs 2 LiYCl 6 :Ce), CLLB (Cs 2 LiLaBr 6 :Ce), etc. [4]. However, those crystals have a strong self-absorption effect and highly hygroscopic nature.…”

Section: Introductionmentioning

confidence: 99%

Growth and Scintillation Properties of Na+-Doped CsCu2I3 Single Crystals

et al. 2023

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CsCu2I3 crystal is a promising Cu-based halide material for scintillation detection. In this paper, Na+ ion-doped CsCu2I3 crystals with a size of ϕ12 mm × 50 mm were grown successfully using the vertical Bridgman method, and the properties were systematically investigated. CsCu2I3:Na crystals exhibit yellow light emission peaking at 575 nm and a large Stokes shift of 1.55 eV. Based on the results of the XRD and XPS, the Na+ was introduced successfully. The optical absorption spectra show that the band gap of CsCu2I3 crystals was narrowed when the Na+ was doped. The photoluminescence quantum efficiency (PLQY) is improved from 16.4% to 19.6%. Finally, the X-ray-induced afterglow, and scintillation (energy resolution, light yield and decay time) under a 137Cs source were measured and discussed. These results illustrate that CsCu2I3:Na crystals have potential applications in the radiation detection field.

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Section: Introductionmentioning

confidence: 99%

Growth and Scintillation Properties of Na+-Doped CsCu2I3 Single Crystals

et al. 2023

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“…production of the photoactive material (e.g., CdZnTe and CdTe) is cumbersome and expensive. HPs can be used to detect X-rays via direct or indirect methods (the latter mainly by means of elpasolite halide single crystals), [351] as illustrated in Figure 23. Yet, the most popular LHPs contain toxic lead and exhibit relatively low stability (as compared with commercial materials) under ambient conditions.…”

Section: Radiation Detectors Using Pb-free Perovskitesmentioning

confidence: 99%

Lead‐Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospective

López‐Fernández,

Valli,

Wang

et al. 2023

Adv Funct Materials

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Halide perovskites, in the form of thin films and colloidal nanocrystals, have recently taken semiconductor optoelectronics research by storm, and have emerged as promising candidates for high‐performance solar cells, light‐emitting diodes (LEDs), lasers, photodetectors, and radiation detectors. The impressive optical and optoelectronic properties, along with the rapid increase in efficiencies of solar cells and LEDs, have greatly attracted researchers across many disciplines. However, most advances made so far in terms of preparation (colloidal nanocrystals and thin films), and the devices with highest efficiencies are based on Pb‐based halide perovskites, which have raised concerns over their commercialization due to the toxicity of Pb. This has triggered the search for lower‐toxicity Pb‐free halide perovskites and has led to significant progress in the last few years. In this roadmap review, researchers of different expertise have joined together to summarize the latest progress, outstanding challenges, and future directions of Pb‐free halide perovskite thin films and nanocrystals, regarding their synthesis, optical spectroscopy, and optoelectronic devices, to guide the researchers currently working in this area as well as those that will join the field in the future.

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“…a Li content of 1.43 × 10 22 cm -3 ), Li-halides (Eu:LiI, Ce:Cs 2 LiYCl 6 , Eu:LiCaAlF 6 ), and LiF/ZnS composites, etc. [5][6][7][8][9] Though some of them have become commercially available, one or more critical drawbacks still exist, such as a high production cost, serious hygroscopicity, and a long scintillation decay.…”

mentioning

confidence: 99%

Scattering-free Ce:LYBO single crystals for thermal neutron detection

Yuan,

Víllora,

Nakauchi

et al. 2024

Appl. Phys. Express

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Ce:Li6Y(BO3)3 (LYBO) is a well-known candidate for thermal neutron detection. So far, as-grown crystals exhibit a milky appearance that compromises their performance as scintillators. Current work demonstrates for the first time the growth of scattering-free LYBO by a thermal quenching process. The origin and features of the scattering centers are investigated in detail. Furthermore, the annealing treatment for the scintillation activation is studied, finding that the reduction in oxygen vacancies is mandatory. Under thermal neutron irradiation, the annealed scattering-free Ce:LYBO single crystal achieves a record-high light yield of 6200 ph/n in a single decay with a lifetime of 24 ns.

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Recent Trends in Elpasolite Single Crystal Scintillators for Radiation Detection

Cited by 9 publications

References 65 publications

Growth and Scintillation Properties of Na+-Doped CsCu2I3 Single Crystals

Growth and Scintillation Properties of Na+-Doped CsCu2I3 Single Crystals

Lead‐Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospective

Scattering-free Ce:LYBO single crystals for thermal neutron detection

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