Crystal growth and characterization of Eu 2+ doped RbCaX 3 (X = Cl, Br) scintillators

Rebrova, N.V.; Grippa, A.Yu.; Pushak, A.S.; Gorbacheva, T.E.; Pedash, V.Yu.; Viagin, Oleg; Cherginets, V.L.; Тарасов, В. А.; Vistovskyy, V.; Vaskiv, A.; Myagkota, S. V.

doi:10.1016/j.jcrysgro.2017.03.016

Cited by 23 publications

(6 citation statements)

References 25 publications

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“…However, one disadvantage of Rb 2 CuCl 3 is that 87 Rb isotope is radioactive. The presence of radioactive isotope, 27.8% in natural rubidium, will inevitably introduce a constant yet weak background noise . The half life of 87 Rb is ∼96 billion years, and the radioactive reaction produces strontium-87 and negative beta rays, which could be easily captured by a thin layer of paper.…”

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confidence: 99%

“…The presence of radioactive isotope, 27.8% in natural rubidium, will inevitably introduce a constant yet weak background noise. 45 The half life of 87 Rb is ∼96 billion years, and the radioactive reaction produces strontium-87 and negative beta rays, which could be easily captured by a thin layer of paper. Thus we neglect the influence of background noise in this Letter.…”

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confidence: 99%

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All-Inorganic Copper Halide as a Stable and Self-Absorption-Free X-ray Scintillator

Zhao

Niu

Zhu

et al. 2020

J. Phys. Chem. Lett.

161

159

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Lead halide perovskites have recently shown great potential as X-ray scintillators; however, the toxicity of the lead element seriously restricts their applications. Herein we report a new lead-free and self-absorption-free scintillator based on Rb 2 CuCl 3 metal halide. The Rb 2 CuCl 3 exhibits a near-unity photoluminescence quantum yield (99.4%) as well as a long photoluminescence lifetime (11.3 μs). Furthermore, Rb 2 CuCl 3 demonstrates an appreciable light yield of 16 600 photons per megaelectronvolt and a large scintillation response with a linear range from 48.6 nGy air s −1 to 15.7 μGy air s −1 . Notably, the detection limit is as low as 88.5 nGy air s −1 , enabling a reduced radiation dose to the human body when a medical and security check is conducted. In addition, Rb 2 CuCl 3 exhibits good stability against the atmosphere, continuous ultraviolet light, as well as X-ray irradiation. The combination of the decent scintillation performance, low toxicity and good stability suggests the Rb 2 CuCl 3 could be a possible promising X-ray scintillator.

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confidence: 99%

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confidence: 99%

All-Inorganic Copper Halide as a Stable and Self-Absorption-Free X-ray Scintillator

Zhao

Niu

Zhu

et al. 2020

J. Phys. Chem. Lett.

161

159

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“…Ca 2+ could cooperate with Cl − , Br − , and I − ions, forming CsCaX 3 and RbCaX 3 single crystals with various configurations, such as cubic, tetragonal, and orthorhombic. [ 30 ] However, not all the bivalent lead‐free ions form regular octahedrons with halide ions, and the configurations and dimensions of other bivalent ions based ILFP single crystals are various. Taking CsMnCl 3 (H 2 O) 2 single crystals as an example, where the Mn 2+ ion is surrounded by four Cl − ions and two O 2− ions to form a distorted [MnCl 4 (H 2 O) 2 ] octahedron.…”

Section: Materials and Structures Of Ilfp Single Crystalsmentioning

confidence: 99%

“…[ 62 ] The relative light yields of a RbCaBr 3 :Eu 2+ single crystal is as high as 77%, implying the character of highly efficient transformation in ILFP single crystals. [ 30 ] In addition, α‐particle and X‐ray are found to be able to be transferred into visible light by ILFP single crystals. [ 41,73 ] Therefore, attention has been drawn to exploring ILFP single crystals as potential scintillators for imaging.…”

Section: Applications Of Ilfp Single Crystalsmentioning

confidence: 99%

“…Besides, the exploration of ILFP analogs candidates has been made to choose the stable ILFP single crystals with novel properties. From the previous literatures, bivalent elements (Sn, Zn, Sr, and Ca) and heterovalent elements (Bi, Sb, Cu, Ag, and In) were used to replace Pb and to form single component ILFPs (single lead‐free ion to replace a Pb 2+ ion), [ 28–35 ] as well as double perovskites (two different lead‐free ions to replace two Pb 2+ ions). [ 36–41 ] Due to the differences in chemical properties and ion sizes, various lead‐free ions can coordinate with halide ions to form metal‐halide regular or irregular octahedrons and tetrahedrons with the lead‐free ions surrounded by halide ions.…”

Section: Introductionmentioning

confidence: 99%

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All‐Inorganic Lead‐Free Perovskite(‐Like) Single Crystals: Synthesis, Properties, and Applications

et al. 2021

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Due to their nontoxicity, stability, and unique optoelectronic properties, all‐inorganic lead‐free halide semiconductors with perovskite and perovskite‐like structures have successfully emerged as promising optoelectronic materials for various applications, such as solar cells, light‐emitting diodes (LEDs), photodetectors, and X‐ray detectors. To further explore their practical potentials, researchers have paid more attention in all‐inorganic lead‐free perovskite (‐like) (ILFP) single crystals. For these single crystals, the advantages of large sizes, uniform surface morphology, and few defects can facilitate their excellent performances and practical applications. Besides, compared with the low dimensional and polycrystalline ILFP materials, the ILFP single crystals feature enhanced performances, including a longer carrier diffusion length and a larger light absorption coefficient, which attract a great deal of attention. Therefore, focus is on the researching progress of ILFP single crystals and the development of their preparation methods, as well as the novel properties of ILFP single crystals. In addition, the reported applications of ILFP single crystals are proposed to highlight their practical importance. With the perspective of the evolution and challenges, the current limitations of the materials and devices are discussed, followed by an inspirational outlook on their future development directions.

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Temperature Gradient Designing and Optical Properties of SrI2 and SrI2:Eu Crystals Grown by Edge-Defined Film-Fed Growth (EFG) Method

Yao

Zhang

Liu

et al. 2018

Journal of Elec Materi

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Crystal growth and characterization of Eu 2+ doped RbCaX 3 (X = Cl, Br) scintillators

Cited by 23 publications

References 25 publications

All-Inorganic Copper Halide as a Stable and Self-Absorption-Free X-ray Scintillator

All-Inorganic Copper Halide as a Stable and Self-Absorption-Free X-ray Scintillator

All‐Inorganic Lead‐Free Perovskite(‐Like) Single Crystals: Synthesis, Properties, and Applications

Temperature Gradient Designing and Optical Properties of SrI2 and SrI2:Eu Crystals Grown by Edge-Defined Film-Fed Growth (EFG) Method

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