Cited by Exploring Aqueous Solution‐Processed Pseudohalide Rare‐Earth Double Perovskite Ferroelectrics toward X‐ray Detection with High Sensitivity

Epitaxial Welding of 3D and 2D Perovskite Single Crystals for Direct-Indirect Energy-Conversion X-ray Detection and Imaging DOI

Zeqin Zhao,

Jinglu Hao,

Binxia Jia

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 2758 - 2766

Published: May 15, 2024

Perovskite single crystals (SC) with strong X-ray absorption and low fabrication costs are expected to be the next generation of materials for detection. However, resistivity serious ion migration three-dimensional (3D) perovskites lead a high leakage current response drift as well carrier mobility radiation luminescence (RL) two-dimensional (2D) perovskites, resulting in output detector. In this study, we successfully combined 3D 2D by epitaxial welding SCs. addition, RL SC sandwich layer formed 3D/2D/3D was recovered SC, an enhanced energy-conversion efficiency Therefore, detectors achieved 566% improvement sensitivity ultralow detection limit 14.2 nGy s–1. Owing excellent stability detector still maintained its original after 30,000 s. All these properties enabled provide spatial resolution 13.8 lp mm–1 imaging. This study provides new strategy designing stable sensitive detectors.

Language: Английский

Citations

Tailoring Multi‐Phenyl Ring Cation for Stable Scalable Hybrid Bismuth Iodide Amorphous Film: Enabling Record Sensitivity and High‐Performance X‐Ray Array Imaging DOI

Youkui Xu, Zhenhua Li,

Chang Shi

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 22, 2024

The 329-type bismuth (Bi)-based metal halide (MH) polycrystalline films have potential to be applied in the new generation of X-ray imaging technology owing high absorption coefficients and excellent detection properties. However, mutually independent [Bi

Language: Английский

Citations

Dion‐Jacobson Type Lead‐Free Double Perovskite with Ultra‐Narrow Aromatic Interlayer Spacing for Highly Sensitive and Stable X‐ray Detection DOI

Guirong Chen,

Hongliang Dai,

Zeng‐Kui Zhu

et al.

Small, Journal Year: 2024, Volume and Issue: 20(30)

Published: March 8, 2024

Abstract The low‐toxic and environmentally friendly 2D lead‐free perovskite has made significant progress in the exploration of “green” X‐ray detectors. However, gap detection performance between them their lead‐based analogues remains a matter concern that cannot be ignored. To reduce this gap, shortening interlayer spacing to accelerate migration collection carriers is promising strategy. Herein, Dion‐Jacobson (DJ) double (4‐AP) 2 AgBiBr 8 ( 1 , 4‐AP = 4‐amidinopyridine) with an ultra‐narrow 3.0 Å, constructed by utilizing π‐conjugated aromatic spacers. Strikingly, subsequent enhanced carrier transport increased crystal density lead detectors based on bulk single crystals high sensitivity 1117.3 µC Gy −1 cm −2 superior vast majority similar perovskites. In particular, tight connection inorganic layers divalent cations enhances structural rigidity stability, further endowing detector ultralow dark current drift (3.06 × 10 −8 nA s V 80 V), excellent multiple cycles switching irradiation as well long‐term environmental stability (maintains over 94% photoresponse after 90 days). This work brings perovskites one step closer realizing efficient practical green applications.

Language: Английский

Citations

Synergistic crystallization regulation and defect passivation for growth of high-quality perovskite single crystals towards ultrasensitive X-ray detection DOI

Zhilong Chen, Hu Wang, Jie Fu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(24), P. 14446 - 14455

Published: Jan. 1, 2024

This report demonstrates a method of synergistic defect passivation and crystallization regulation, which can significantly improve crystal quality promote X-ray detector performance.

Language: Английский

Citations

Ultrafast Scintillator Based on Zirconium‐Doped Cesium Zinc Chloride Single Crystals and Their Charge Carrier Dynamics DOI

Yin Hang,

Bingxi Song,

Yufeng Tong

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: 18(12)

Published: Aug. 3, 2024

Abstract Scintillators have been widely used for high‐energy radiation imaging. It is in great demand and challenge to develop scintillator materials with fast decay time, high scintillation light yield, low detection limit high‐resolution imaging applications such as time‐of‐flight positron emission tomography. However, it still a the ultrafast carrier dynamics achieve 100% time yield. To meet demand, series of component‐tunable Cs 2 ZnCl 4 : x%Zr single crystals promising scintillators successfully developed. With 8% Zr‐dopant (Cs 8%Zr), crystal exhibits yield (28000 photons MeV −1 ) (51 nGy s under X‐ray excitation. Photo‐induced transient absorption signals on sub‐nanosecond nanosecond scales ensure almost (≈3 ns) nanoseconds γ‐ray In particular, different radiative transition processes are achieved ultraviolet due tunable from shallow trapped state self‐trapped exciton (STE) state.

Language: Английский

Citations

Exploring Aqueous Solution‐Processed Pseudohalide Rare‐Earth Double Perovskite Ferroelectrics toward X‐ray Detection with High Sensitivity DOI

Changfeng Wang,

Ye Yang,

Yu Hu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(49)

Published: Aug. 29, 2024

Abstract Three‐dimensional (3D) pseudohalide rare‐earth double perovskites (PREDPs) have garnered significant attention for their versatile physical properties, including ferroelectricity, ferroelasticity, large piezoelectric responses, and circularly polarized luminescence. However, potential X‐ray detection remains unexplored, the low Curie temperature ( T C ) limits performance window PREDP ferroelectrics. Here, by applying chemical regulation strategies involving halogen substitution on organic cation Rb/Cs to [( R )‐M3HQ] 2 RbEu(NO 3 6 )‐M3HQ=( )‐N‐methyl‐3‐hydroxylquinuclidinium] with a of 285 K, novel 3D ferroelectric )‐CM3HQ] CsEu(NO )‐CM3HQ=( )‐N‐chloromethyl‐3‐hydroxylquinuclidinium] are successfully synthesized, which reaches 344 K. More importantly, such strategy endowed notable capabilities. Centimeter‐sized single crystals fabricated from aqueous solutions demonstrated sensitivity 1307 μC Gy air −1 cm −2 detectable dose rate 152 nGy s , highest reported hybrid perovskite detectors. This work positions PREDPs as promising candidates next generation eco‐friendly optoelectronic materials also offers substantial insights into interaction between structure, composition, functionality in materials.

Language: Английский

Citations

High-Performance Oxide Crystal BaTeW₂O₉ X-ray Detector with High Stability, Low Detection Limit, and Ultralow Dark Current Drift DOI

Feifei Guo,

Fuai Hu,

Yu‐Fei Song

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

X-ray detection materials and devices have received widespread attention due to their irreplaceable role in the medical, industrial, military fields. In this paper, BaTeW2O9 (BTW) crystal containing lone pairs of electrons with large atomic numbers high density is reported as a new type oxide material. The anisotropic performance BTW single (SC) systematically studied. At 120 keV hard photon energy, SC detectors along crystallographic a-, b-, c-axes directions achieved sensitivities 371, 404, 368 μC Gyair-1 cm-2 respectively. More importantly, no dark current drift phenomenon was observed detectors. drifts are low 7.81 × 10-9, 8.61 7.71 10-9 nA cm-1 s-1 V-1, addition, detector has an ultralow limit 21.9 nGyair s-1. Our research provides material potential application value design strategy for field radiation detection.

Language: Английский

Citations

Ultra‐stable and Sensitive X‐ray Detectors Using 3D Hybrid Perovskitoid Single Crystals DOI

XU Li-jun,

Daohua Wang,

Huang Ye

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Organic–inorganic hybrid perovskites (OIHPs) have shown great potential for direct X‐ray detection in security screening and medical diagnostics. However, their humidity stability is compromised due to the susceptibility of structural components water molecules, thereby limiting practical application. In this work, stable sensitive achieved using high‐quality bulk single crystals 3D perovskitoid (DMPZ)Pb 2 Br 6 ( DPB , DMPZ = N ′‐dimethyl‐pyrazinium), wherein ‐acid protons are replaced with hydrophobic alkyl groups. Notably, maintain phase after 60 days immersion at room temperature, demonstrating significant moisture‐stable detectors. Based on detectors successfully fabricated, achieving a high sensitivity 6437.2 µC Gy air −1 cm −2 70 V bias limit low 46.7 nGy s outperforming most low‐dimensional perovskite Most strikingly, retain 79.6% initial 14 immersion, highlighting exceptional moisture stability. This work first construct high‐performance crystals, advancing development detection.

Language: Английский

Citations

Unveiling the Role of Cesium in Halide Perovskite Single Crystal for Stable and Ultrasensitive X‐Ray Detection DOI

Naiming Liu, Depeng Chu, Xiaofei Xin

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Abstract Metal halide perovskites have been demonstrated to be the promising X‐ray detection materials, among which MAPbI 3 is expected for high‐performance large‐area detector integration due its strong absorption and solution processible at low temperature industrial‐grade large‐size single crystal (SC). However, commercial viability of SC detectors remains challenging poor intrinsic stability, large dark current, significant ion migration. Herein, inorganic Cs + ions are designed incorporate into effects on structure, defect state, band migration, carrier transport in SCs systematically unveiled. The experimental results show that incorporation reduces density, inhibits improves mobility, increases resistivity. Therefore, fabricated with high sensitivity 49847 µC Gy −1 cm −2 , limit 3.1 nGy s short response raise time 150 µs, superior long‐term operating stability under continuous irradiation bias. rare combination these figure merits enables achieve high‐definition imaging, confirming this work provides a new strategy designing stable sensitive detectors.

Language: Английский

Citations

Green Fabrication of Sulfonium‐Containing Bismuth Materials for High‐Sensitivity X‐Ray Detection DOI

Allan Starkholm, Dominik Al‐Sabbagh, Sema Sarisözen

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract Organic–inorganic hybrid materials based on lead and bismuth have recently been proposed as novel X‐ gamma‐ray detectors for medical imaging, non‐destructive testing, security, due to their high atomic numbers facile preparation compared traditional like amorphous selenium Cd(Zn)Te. However, challenges related device operation, excessively dark currents, long‐term stability delayed commercialization. Here, two semiconductors incorporating stable sulfonium cations are presented, [(CH 3 CH 2 ) S] 6 Bi 8 I 30 S]AgBiI 5 , synthesized via solvent‐free ball milling fabricated into dense polycrystalline pellets using cold isostatic compression, techniques that can easily be upscaled, X‐ray detection application. The exhibit exceptional sensitivities (14 100–15 190 µC Gy air −1 cm −2 low limits (90 nGy s 78 ), far surpassing current commercial detectors. Notably, they maintain performance after 9 months of ambient storage. findings highlight scalable, cost‐effective highly alternatives semiconductor materials, offering great potential in security applications.

Language: Английский

Citations