All-inorganic perovskite nanocrystals: next-generation scintillation materials for high-resolution X-ray imaging

Lu, Lu; Sun, Mingzi; Wu, Tong; Lu, Qimiao; Chen, Baian; Huang, Bolong

doi:10.1039/d1na00815c

Cited by 68 publications

(47 citation statements)

References 120 publications

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“…In halide perovskites [ 211 ], it is not yet possible to obtain better results than for end compounds, while in (Lu, Gd)AlO 3 :Ce [ 212 ] the light yield approaches 21,000 ph/MeV, which is close to that of but much less dense YAlO 3 :Ce and 30% higher than the best (Lu,Y)AlO 3 :Ce. The compound may reach a Z eff ~65, which is comparable to commercial LSO:Ce.…”

Section: Disordered Doped Scintillation Materialsmentioning

confidence: 99%

Compositionally Disordered Crystalline Compounds for Next Generation of Radiation Detectors

et al. 2022

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The review is devoted to the analysis of the compositional disordering potential of the crystal matrix of a scintillator to improve its scintillation parameters. Technological capabilities to complicate crystal matrices both in anionic and cationic sublattices of a variety of compounds are examined. The effects of the disorder at nano-level on the landscape at the bottom of the conduction band, which is adjacent to the band gap, have been discussed. The ways to control the composition of polycationic compounds when creating precursors, the role of disorder in the anionic sublattice in alkali halide compounds, a positive role of Gd based matrices on scintillation properties, and the control of the heterovalent state of the activator by creation of disorder in silicates have been considered as well. The benefits of introducing a 3D printing method, which is prospective for the engineering and production of scintillators at the nanoscale level, have been manifested.

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Section: Disordered Doped Scintillation Materialsmentioning

confidence: 99%

Compositionally Disordered Crystalline Compounds for Next Generation of Radiation Detectors

et al. 2022

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“…They are thus widely studied for detecting X-rays, γ-rays, ultraviolet, visible, and near-infrared light. [66][67][68][69][70][71] Due to their high absorption properties and large atomic numbers, perovskite materials excel in the field of highenergy ray detection. In recent years, the unique role of perovskite materials in polarization detection is gradually emerging.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress of Polarization‐Sensitive Perovskite Photodetectors

Hou

Tian

et al. 2022

Adv Funct Materials

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Polarization‐sensitive photodetectors are gaining numerous attention since polarization detection is important in geological remote sensing, atmospheric monitoring, military recon, and medical examination. Among various reported photoactive materials for photodetectors, metal halide perovskites have outstanding advantages such as tunable band gaps, excellent optoelectronic properties, and easy fabrication. Moreover, the characteristics of crystal structure anisotropy and controllable growth orientation of perovskite crystals endow the perovskite photodetector with the ability to identify light polarization states. This review outlines the recent research progress of perovskite photodetectors on polarization‐sensitive detection. Firstly, key device parameters of polarization‐sensitive detection are introduced. Then, the recent progress of polarization‐sensitive perovskite detectors in the field of linear and circular polarization is reviewed according to the different principles of polarization response. Finally, the challenges of polarization‐sensitive perovskite photodetector are discussed.

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“…[ 1 , 4 , 5 , 6 ] Rare‐earth (RE) aluminum oxide perovskites doped with Ce 3+ and similar dopants such as Eu 3+[ 7 ] and Tb 3+[ 8 , 9 ] have shown promise as scintillating and phosphorescent materials throughout the past 20+ years. [ 1 , 2 , 10 , 11 , 12 ] For instance, Ce‐doped LuAlO 3 (Ce:LuAlO 3 ) has a relatively high Z value and has been considered for positron emission tomography due to the high stopping power required for γ‐ray detection. [ 1 , 5 ] Ce‐doped YAlO 3 (Ce:YAlO 3 ), which exhibits peculiar pulse height discrimination properties, has also recently been studied for its ability to distinguish between γ and neutron radiations.…”

Section: Introductionmentioning

confidence: 99%

Structural and Optical Properties of High Entropy (La,Lu,Y,Gd,Ce)AlO₃ Perovskite Thin Films

Corey

Zhang

et al. 2022

Advanced Science

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Mixtures of Ce-doped rare-earth aluminum perovskites are drawing a significant amount of attention as potential scintillating devices. However, the synthesis of complex perovskite systems leads to many challenges. Designing the A-site cations with an equiatomic ratio allows for the stabilization of a single-crystal phase driven by an entropic regime. This work describes the synthesis of a highly epitaxial thin film of configurationally disordered rare-earth aluminum perovskite oxide (La 0.2 Lu 0.2 Y 0.2 Gd 0.2 Ce 0.2 )AlO 3 and characterizes the structural and optical properties. The thin films exhibit three equivalent epitaxial domains having an orthorhombic structure resulting from monoclinic distortion of the perovskite cubic cell. An excitation of 286.5 nm from Gd 3+ and energy transfer to Ce 3+ with 405 nm emission are observed, which represents the potential for high-energy conversion. These experimental results also offer the pathway to tunable optical properties of high-entropy rare-earth epitaxial perovskite films for a range of applications.

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All-inorganic perovskite nanocrystals: next-generation scintillation materials for high-resolution X-ray imaging

Abstract: With super strong penetrability, high-energy X-rays can be applied to probe the inner structure of target objects under nondestructive situations. Scintillation materials can down-convert X-rays into visible light, enabling the...

Cited by 68 publications

References 120 publications

Compositionally Disordered Crystalline Compounds for Next Generation of Radiation Detectors

Compositionally Disordered Crystalline Compounds for Next Generation of Radiation Detectors

Recent Progress of Polarization‐Sensitive Perovskite Photodetectors

Structural and Optical Properties of High Entropy (La,Lu,Y,Gd,Ce)AlO₃ Perovskite Thin Films

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All-inorganic perovskite nanocrystals: next-generation scintillation materials for high-resolution X-ray imaging

Abstract: With super strong penetrability, high-energy X-rays can be applied to probe the inner structure of target objects under nondestructive situations. Scintillation materials can down-convert X-rays into visible light, enabling the...

Cited by 68 publications

References 120 publications

Compositionally Disordered Crystalline Compounds for Next Generation of Radiation Detectors

Compositionally Disordered Crystalline Compounds for Next Generation of Radiation Detectors

Recent Progress of Polarization‐Sensitive Perovskite Photodetectors

Structural and Optical Properties of High Entropy (La,Lu,Y,Gd,Ce)AlO3 Perovskite Thin Films

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Structural and Optical Properties of High Entropy (La,Lu,Y,Gd,Ce)AlO₃ Perovskite Thin Films