In Situ Crystallization of CsPbBr3 Nanocrystals within a Melt-Quenched Glassy Coordination Polymer DOI

Qing-Peng Peng,

Junhua Wei,

Zi‐Lin He

и другие.

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Lead halide perovskite nanocrystal materials such as CsPbX3 (X = Cl, Br, and I) have triggered an intense research upsurge due to their excellent scintillation performance. Herein, in situ crystallization strategy is developed grow CsPbBr3 nanocrystals (NCs) within a low-melting-point (280 °C) coordination polymer (CP) glass. The viscosity of glass reduced through low-temperature (e.g., 50 thermal treatment, enabling the short-distance migration uniformly dispersed ions (Cs+, Pb2+, Br-) achieve NCs. Benefiting from high transmittance (80% 500-800 nm range) outstanding performance, prepared CsPbBr3@ZnBr2(bIm+DMSO)2 (bIm benzimidazole, DMSO dimethyl sulfoxide) transparent luminescence exhibits X-ray imaging resolution up 25 lp/mm, outperforming many crystalline scintillators. This work would provide idea for development high-resolution screens that can be at low temperatures.

Язык: Английский

Light‐Emitting Diodes Based on Metal Halide Perovskite and Perovskite Related Nanocrystals DOI Creative Commons
Ying Liu, Zhuangzhuang Ma, Jibin Zhang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 29, 2025

Abstract Light‐emitting diodes (LEDs) based on halide perovskite nanocrystals have attracted extensive attention due to their considerable luminescence efficiency, wide color gamut, high purity, and facile material synthesis. Since the first demonstration of LEDs MAPbBr 3 was reported in 2014, community has witnessed a rapid development performances. In this review, historical perspective is provided then comprehensive survey current strategies for high‐efficiency lead‐based LEDs, including synthesis optimization, ion doping/alloying, shell coating presented. Then basic characteristics emission mechanisms lead‐free perovskite‐related emitters environmentally friendly from standpoint different colors are reviewed. Finally, progress LED applications covered an outlook opportunities challenges future developments field provided.

Язык: Английский

Процитировано

4

Lead‐Free Cesium Manganese Halide Nanocrystals Embedded Glasses for X‐Ray Imaging DOI Creative Commons
Kai Li, Wenchao Zhang, Luyue Niu

и другие.

Advanced Science, Год журнала: 2022, Номер 10(4)

Опубликована: Дек. 3, 2022

Abstract The toxicity of heavy‐metal Pb and instability lead‐based halide perovskite nanomaterials are main factors to impede their practical applications in the fields solar cells, LEDs scintillators. In this paper, all inorganic lead‐free cesium manganese nanocrystals synthesized glass for first time. Red photoluminescence with broad PL band, negligible self‐absorption a high quantum yield 41.8% is obtained. addition, modulating component can change Mn 2+ ions coordination environment obtain tunable from red green. More importantly, embedded glasses exhibit outstanding long‐term stabilities. Theses also highly stable against energy irradiation efficient radioluminescence, making them promising high‐resolution X‐ray imaging. These results demonstrate that eco‐friendly candidates light‐emitting diodes

Язык: Английский

Процитировано

51

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

Huaiyao Shi

и другие.

Advanced Materials, Год журнала: 2023, Номер 36(3)

Опубликована: Ноя. 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.

Язык: Английский

Процитировано

37

Pressure‐Induced Remarkable Spectral Red‐Shift in Mn2+‐Activated NaY9(SiO4)6O2 Red‐Emitting Phosphors for High‐Sensitive Optical Manometry DOI Creative Commons

Qifeng Zeng,

Marcin Runowski, Junpeng Xue

и другие.

Advanced Science, Год журнала: 2023, Номер 11(9)

Опубликована: Дек. 16, 2023

To settle the low sensitivity of luminescent manometers, Mn

Язык: Английский

Процитировано

36

Shape-on-demand synthesis of luminescent (ETP)2MnBr4 glass scintillator DOI
Xiaojia Wang,

Xiangzhou Zhang,

Yeqi Liu

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 483, С. 149239 - 149239

Опубликована: Фев. 2, 2024

Язык: Английский

Процитировано

17

Photophysical Properties of Copper Halides with Strongly Confined Excitons and Their High‐Performance X‐Ray Imaging DOI
Weiguo Zhu, Ruizi Li, Xiaowang Liu

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер 34(26)

Опубликована: Фев. 25, 2024

Abstract Copper halides, a new class of attractive and potential scintillators, have attracted tremendous attention in X‐ray imaging. However, the ambiguity surrounding their exciton properties unclear effect crystal structure on photophysical performance hinder an in‐depth understanding luminescence mechanism further application imaging field. Herein, copper halide scintillators Cs 3 Cu 2 X 5 (X = I, Br, Cl) with 0D is prepared, are revealed using both theoretical calculation experimental verification. The small Bohr diameter together high binding energy can cause to hold strongly confined excitons lack quantum‐size effects. materials exhibit structural framework soft lattice Frenkel strong confinement effects, resulting self‐trapped excitons. In particular, I demonstrated as efficient scintillator radioluminescence efficiency spatial resolution ≈106 µm radiography, which primarily attributed improve radiative recombination probability electron‐hole pairs. Overall, this work provides pathway for developing performance.

Язык: Английский

Процитировано

15

Recent Developments in Halide Perovskite Nanocrystals for Indirect X‐ray Detection DOI Creative Commons
О.A. Balitskii,

Mykhailo Sytnyk,

Wolfgang Heiß

и другие.

Advanced Materials Technologies, Год журнала: 2024, Номер 9(20)

Опубликована: Май 26, 2024

Abstract Metal halide perovskites are revolutionizing X‐ray detection through a combination of low cost, solution processing, favorable optoelectronic properties, and high stopping power for high‐energy ionizing radiation. While perovskite single crystals polycrystalline wafers considered direct converters, most medical applications based on scintillators that shift radiation into the visible. Several materials market, but demonstrations CsPbBr 3 nanocrystals, possibly embedded in matrix material or combined with organic molecules as luminescent species, highlight their competitiveness established terms radioluminescence yield transient behavior. Major hurdles nanocrystal must overcome environmental stability toxicity. there still few examples high‐performance lead‐free scintillators, microcrystalline emerging promising reduced toxicity, significant Stokes shifts to avoid reabsorption emission thick films. Thus, near future scintillator will primarily be adoption recipes proven properties form. The colloidal solutions facilitate large‐scale printing homogeneous scattering‐free films obtain contrast spatial resolution images by scintillation.

Язык: Английский

Процитировано

12

Novel transparent NaLu2F7:Tb3+ glass-ceramics scintillator for highly resolved X-ray imaging DOI

Wenhui Dai,

Qing Zhang, Ghulam Abbas Ashraf

и другие.

Ceramics International, Год журнала: 2024, Номер 50(12), С. 21878 - 21888

Опубликована: Март 25, 2024

Язык: Английский

Процитировано

11

Bright Green-Emitting All-Inorganic Terbium Halide Double Perovskite Nanocrystals for Low-Dose X-ray Imaging DOI
Wei Zhou, Cheng Li, Tong Wu

и другие.

The Journal of Physical Chemistry Letters, Год журнала: 2023, Номер 14(38), С. 8577 - 8583

Опубликована: Сен. 19, 2023

Inorganic halide double perovskite (DP) nanocrystals (NCs) have attracted great attention because of their nontoxicity, mild reaction conditions, good stability, and excellent optical optoelectronic properties. Herein, we prepare the inorganic terbium DP Cs2BTbCl6 (B = Na or Ag) NCs with bright green photoluminescence (PL) emission. The Na–Tb-based exhibit better PL properties compared Ag–Tb-based NCs, which is due to Cs2NaTbCl6 having a more localized charge carrier distribution on [TbCl6]3– octahedron. incorporation Sb3+ dopant in can construct efficient energy transfer process, resulting doubling efficiency. Furthermore, Cs2NaTbCl6: possess X-ray scintillating performance low-dose detection limit 140 nGyair/s, nearly 5 times sensitive than undoped NCs. optimized show application prospects imaging. This work helps deepen understanding luminescence mechanism, excited state dynamics, scintillation property Tb-based

Язык: Английский

Процитировано

22

Exploring CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications DOI

Sadaf Samiei,

Ehsan Soheyli, Kunnathodi Vighnesh

и другие.

Small, Год журнала: 2023, Номер 20(17)

Опубликована: Дек. 10, 2023

Abstract Metal halide perovskites with excellent optical and electronic properties have become a trending material in the current research. However, their limited stability under ambient conditions degrades quality threatens potential commercialization as optoelectronic devices. Various approaches are adopted to improve of perovskite nanocrystals (PeNC) while maintaining advantageous properties, particularly strong luminescence. Among different possible improvement strategies, encapsulation PeNCs within amorphous glass matrices inorganic oxides has drawn widespread attention because it ensures high resistance against chemical corrosion temperature, thus enhancing chemical, thermal, mechanical improved light‐emission characteristics. In this article, two types materials, namely all‐inorganic metal oxide glasses briefly introduced, then methods reviewed fabricate PeNC@glass composites. These classified into three universal categories: compositional modification, structural dual encapsulation. final part review paper, examples applications PeNCs@glass composites light‐emitting devices displays, data storage anti‐counterfeiting, lasing, photodetectors X‐ray detectors, photocatalysis, filters, solar concentrators, batteries provided.

Язык: Английский

Процитировано

22