Recent Advances and Opportunities in Low‐Dimensional Layered Perovskites for Emergent Applications beyond Photovoltaics DOI Creative Commons
Joydip Ghosh, Sumaiya Parveen, P.J. Sellin

et al.

Advanced Materials Technologies, Journal Year: 2023, Volume and Issue: 8(17)

Published: June 21, 2023

Abstract Layered metal halide perovskites have attracted enormous research attention over the last few years, befitting their unique optical and electronic properties. Low‐dimensional layered demonstrate great potential for various optoelectronic sensing applications beyond photovoltaics. Herein, recent progress opportunities in 2D quasi‐2D light‐emitting diodes (LEDs), lasers, memristors, neuromorphic/synaptic applications, UV–vis photodetection, X‐ray detection, scintillators, photocatalytic are reviewed. First, crystal structure, characteristics, fundamental properties of discussed. Recent efforts developments perovskite with excellent luminescence Unique perovskites, such as negligible leakage current due to restricted carrier transport, high stability, hydrophobicity, make them viable memristor devices. After discussing neuromorphic devices using outstanding performance photodetection including polarization‐sensitive is recently proved a superior candidate detection stability. Further, scintillation ionizing radiation Finally, some very achievements present future outlook, exciting this burgeoning field highlighted.

Language: Английский

Manganese‐Halide Single‐Crystal Scintillator Toward High‐Performance X‐Ray Detection and Imaging: Influences of Halogen and Thickness DOI

Zi‐Lin He,

Jun‐Hua Wei,

Zhizhong Zhang

et al.

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(18)

Published: May 7, 2023

Abstract Scintillators, which can convert high‐energy ionizing radiation (e.g., X‐ or γ ‐rays) into ultraviolet‐visible light, have been widely applied in medical and industrial fields. Developing new scintillation materials with high performance low cost is very desirable order to address the growing application demands. Among them, single‐crystal scintillators of organic‐inorganic hybrid metal halides (OIMHs) attracted much attention because their excellent optical transparency, suppressed light scattering, facile solution preparation methods. Herein, three centimeter‐sized (2‐DMAP) 2 MnX 4 (2‐DMAP + = 2‐dimethylaminopyridinium, X Cl, Br, I) single crystals crystal quality are synthesized via solvent evaporation method. Benefiting from transparency remarkable luminescence property, MnBr delivers a X‐ray yield 22 000 photons MeV −1 , limit detection 9.50 nGy s an imaging spatial resolution 20–25 lp mm . Moreover, regulation thickness 0.31 3.03 be easily achieved simple post‐treatment method, has significant influence on transmittance, resolution, limit. This work demonstrates promising scintillator for high‐resolution tunable thickness.

Language: Английский

Citations

32
Light Management of Metal Halide Scintillators for High‐Resolution X‐Ray Imaging DOI Open Access
Xiuwen Xu, Yue‐Min Xie,

Huaiyao Shi

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(3)

Published: Nov. 27, 2023

The ever-growing need to inspect matter with hyperfine structures requires a revolution in current scintillation detectors, and the innovation of scintillators is revived luminescent metal halides entering scene. Notably, for any scintillator, two fundamental issues arise: Which kind material suitable what form should exist? answer former question involves sequence certain atoms into specific crystal that facilitate conversion X-ray light, whereas latter assembling these crystallites particular forms can guide light propagation toward its corresponding pixel detector. Despite their equal importance, efforts are overwhelmingly devoted improving X-ray-to-light conversion, while material-form-associated propagation, which determines optical signal collected imaging, largely overlooked. This perspective critically correlates reported spatial resolution light-propagation behavior each halides, combing designing rules future development.

Language: Английский

Citations

32
0D Hybrid Cuprous Halide as an Efficient Light Emitter and X‐Ray Scintillator DOI
Na Lin,

R.-S. Wang,

Shao‐Ya Zhang

et al.

Laser & Photonics Review, Journal Year: 2023, Volume and Issue: 17(12)

Published: Aug. 24, 2023

Abstract Despite the extraordinary X‐ray scintillation performance of three‐dimensional (3D) lead perovskite nanocrystals (PNCs), serious biotoxicity Pb 2+ and luminescent instability in water remain insurmountable obstacles for their applications medical imaging. To address these drawbacks, herein, study demonstrates one new lead‐free zero‐dimensional (0D) hybrid cuprous halide single‐crystalline [BzTPP] 2 Cu I 4 (BzTPP = Benzyltriphenylphosphonium) as a satisfactory scintillator. displays broadband yellowish‐green light emission with high photoluminescent quantum yield (PLQY) 44.2% large Stokes shift 167 nm upon UV excitation. High PLQY negligible self‐absorption enable to display impressive excited by 27 706 photons MeV ‐1 low detection limit 0.352 µ Gy s −1 , surpassing typical 3D PNCs. More importantly, represents structural stability at least month. The excellent stable radioluminescence well solution growth method ensure ‐based screen fine‐resolution imaging potential radiography inspection. This work highlights multiple merits low‐toxicity cost, yield, long‐term water‐stability 0D halides highly desirable scintillators.

Language: Английский

Citations

31
Sequential Vacuum Evaporated Copper Metal Halides for Scalable, Flexible, and Dynamic X‐Ray Detection DOI

Fu Qiu,

Guoqiang Peng, Youkui Xu

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(36)

Published: May 8, 2023

Abstract Copper metal halides have emerged as a strong contender in the scintillator field due to self‐trapped excitons (STEs) mechanism. However, their development has been hindered by preparation process. Single crystals long growth cycles and cannot achieve large areas flexibility. Quantum dots low yield can easily cause chemical pollution, thickness of films prepared spin coating be controlled. To address these challenges, new method for preparing Cs 3 Cu 2 Cl 5 using sequential vacuum evaporation is developed. This allows successful large‐area (≈100 cm ) flexible films. The STEs mechanism gives it unique properties such Stokes shift that reduces self‐absorption effects, wide full width at half‐maximum improves coupling with photodiodes. Therefore, applied X‐ray imaging light ≈30 000 photons MeV −1 , spatial resolution over 10 lp mm detection limit below 0.8 µGy air s . In addition, film enables effective dynamic clear on non‐planar objects. It also exhibits good resistance harsh environments, maintaining performance after 150 days. believed provides an important idea scintillators.

Language: Английский

Citations

29
Recent Advances and Opportunities in Low‐Dimensional Layered Perovskites for Emergent Applications beyond Photovoltaics DOI Creative Commons
Joydip Ghosh, Sumaiya Parveen, P.J. Sellin

et al.

Advanced Materials Technologies, Journal Year: 2023, Volume and Issue: 8(17)

Published: June 21, 2023

Abstract Layered metal halide perovskites have attracted enormous research attention over the last few years, befitting their unique optical and electronic properties. Low‐dimensional layered demonstrate great potential for various optoelectronic sensing applications beyond photovoltaics. Herein, recent progress opportunities in 2D quasi‐2D light‐emitting diodes (LEDs), lasers, memristors, neuromorphic/synaptic applications, UV–vis photodetection, X‐ray detection, scintillators, photocatalytic are reviewed. First, crystal structure, characteristics, fundamental properties of discussed. Recent efforts developments perovskite with excellent luminescence Unique perovskites, such as negligible leakage current due to restricted carrier transport, high stability, hydrophobicity, make them viable memristor devices. After discussing neuromorphic devices using outstanding performance photodetection including polarization‐sensitive is recently proved a superior candidate detection stability. Further, scintillation ionizing radiation Finally, some very achievements present future outlook, exciting this burgeoning field highlighted.

Language: Английский

Citations

25