Molecular Design of Layered Hybrid Silver Bismuth Bromine Single Crystal for Ultra‐Stable X‐Ray Detection With Record Sensitivity

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(6)

Published: Nov. 28, 2023

Abstract Nowadays, weak interlayer coupling and unclear mechanism in layered hybrid silver bismuth bromine (LH‐AgBiBr) are the main reasons for limiting its further enhanced X‐ray detection sensitivity stability. Herein, design rules LH‐AgBiBr influence on performance reported first time. Although shortening amine size can enhance coupling, is severely hampered by easier defect formation caused enlarged micro strain. In contrast, an appropriate divalent endows material with improved released strain, which benefits crystal stability mechanical hardness. Another contribution to increase density dielectric constant; thus, enhancing absorption carrier transport. Consequently, optimized parallel device based BDA 2 AgBiBr 8 achieves a record of 2638 µC Gy air −1 cm −2 ultra‐low limit 7.4 nGy s , outperforming other detectors. Moreover, unencapsulated displays remarkable anti‐moisture, anti‐thermal (>150 °C), anti‐radiation (>1000 ) endurance. Eventually, high‐resolution hard imaging demonstrated linear detector arrays under benign dose rate (1.63 µGy low external bias (5 V). Hence, these findings provide guidelines future materials optimization.

Language: Английский

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Recent Advances of Lead-Free Halide Perovskites: From Synthesis to Applications

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(28), P. 10267 - 10329

Published: Jan. 1, 2024

The recent progress and development directions in lead-free perovskites are summarized from the perspective of device physics materials science.

Language: Английский

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Three‐Dimensional Polar Perovskites for Highly Sensitive Self‐Driven X‐Ray Detection

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(11)

Published: Jan. 10, 2024

Abstract Three‐dimensional (3D) organic–inorganic hybrid perovskites (OIHPs) have achieved tremendous success in direct X‐ray detection due to their high absorption coefficient and excellent carrier transport. However, owing the centrosymmetry of classic 3D structures, these reported detectors mostly require external electrical fields run, resulting bulky overall circuitry, energy consumption, operational instability. Herein, we first report unprecedented radiation photovoltage OIHP for efficient self‐driven detection. Specifically, polar MhyPbBr 3 ( 1 , Mhy=methylhydrazine) shows an intrinsic (0.47 V) large mobility‐lifetime product (1.1×10 −3 cm 2 V −1 ) under irradiation. Strikingly, physical characteristics endow with sensitive performance, showing a considerable sensitivity 220 μC Gy −2 which surpasses those most detectors. This work explores highly OIHPs, shedding light on future practical applications.

Language: Английский

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Achieving Effective Self-Driven X-ray Detection Sensitivity via Pyroelectric–Photovoltaic Coupling in a Layered Perovskite Pyroelectric

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(2), P. 381 - 387

Published: Jan. 8, 2024

X-ray detection plays a significant role in industry and medicine, while it remains challenging to implement highly sensitive without an external source. Here, we have successfully achieved strong X-ray-induced pyroelectric–photovoltaic coupling layered perovskite, (DFBZA)2PbCl4 (DFBZA = 2,4-difluorobenzylamine), serving as effective self-powered pathway. is room-temperature pyroelectric with photoexcited pyroelectricity, of which the detecting capacity (FD) reaches up ∼3.32 × 10–5 Pa–0.5 UV–NIR spectral region. Strikingly, its leads high sensitivity ∼293 μC Gy–1 cm–2, on par those highest-level detectors. This enhanced by surpasses individual photovoltaics 290%, creating brand-new pathway different from previous mechanism. As first study coupling, our work furnishes new pattern for self-driven detectors advances their potential smart device applications.

Language: Английский

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Ionizing Radiation Responsive Anomalous Photovoltage Drives Sensitive Self‐Powered X‐Ray Detection

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(16)

Published: Jan. 2, 2024

Abstract The anomalous photovoltaic (APV) effect in organic–inorganic hybrid perovskites (OIHPs) has attracted massive interest for developing high‐performance optoelectronic devices. However, exploring the ionizing radiation responsive APV remains blank, let alone its potential applications. Herein, unprecedented behavior a 1D lead‐free OIHP, (4‐AMP)BiI 5 ( ABI , 4‐AMP = 4‐(aminomethyl)pyridine) under X‐ray irradiation is reported, exhibiting large above‐bandgap bulk photovoltage of ≈10 V. Such strong closely related to intrinsic electric polarization polar which acts as driving force X‐ray‐generated carriers’ separation and transport, thus allowing it be self‐powered. As result, sensitive self‐powered detectors based on high‐quality single crystals are successfully fabricated, possessing high sensitivity 66.84 µC Gy −1 cm −2 low detection limit 482 nGy s superior operational stability. This work first demonstrates radiation‐responsive OIHPs, further enables passive detection.

Language: Английский

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Room-Temperature Photoferroelectrics Semiconductor Driven by the Interlayer Confinement Effect

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(2), P. 994 - 1003

Published: Jan. 3, 2024

With the assistance of ferroelectrochemistry theory, many multifunctional organic–inorganic hybrid perovskites (OIHPs) ferroelectrics have been designed and studied. However, research on regulating through interlayer confinement effect in two-dimensional (2D) OIHPs is still rare. Herein, we regulated strength by changing length alkyl chain organic cations, precisely constructed a lead bromide ferroelectric (IPA)2PbBr4 (IPA+ isopropylammonium) with high Curie temperature (Tc) 340.5 K spontaneous polarization (Ps) 3.16 μC/cm2 strong effect. Compared (Tp = 370.5 K), (IBA)2PbBr4 (IBA+ isobutylammonium, Tp 315 K) (IAA)2PbBr4 (IAA+ isoamylammonium, 271 crystallized centrosymmetric space group P21/c, Cmca at room (RT), respectively, while also having lower phase transition (Tp). More importantly, gradual decrease spacing from 10.47 Å (IAA)2PbBr4, 7.73 to 5.79 enhances effect, leading IBA+ IAA+ cations disordered state RT, IPA+ cation can be arranged an orderly directional manner. Due differences configuration, impacts degree distortion inorganic skeleton PbBr6 octahedra are different, ultimately reflected crystal structure. In short, arrangement order–disorder induce ferroelectricity skeleton. Additionally, single device based was assembled, which exhibits X-ray detection limit 102 nGy/s self-driven mode. This work provides effective strategy for designing high-temperature photoferroelectrics semiconductors.

Language: Английский

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Structure design of lead-free chiral-polar perovskites for sensitive self-powered X-ray detection

Chinese Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: 43(6), P. 100256 - 100256

Published: Feb. 28, 2024

Language: Английский

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Chiral‐Achiral Cations Intercalation Induced Lead‐Free Chiral‐Polar Hybrid Perovskites Enable Self‐Powered X‐Ray and Ultraviolet–Visible–Near‐Infrared Photo Detection

Small, Journal Year: 2023, Volume and Issue: 20(12)

Published: Nov. 10, 2023

Abstract Lead halide hybrid perovskites have made great progress in direct X‐ray detection and broadband photodetection, but the existence of toxic Pb demand for external operating voltage severely limited their further applications operational stability improvements. Therefore, exploring “green” lead‐free perovskite that can both achieve photodetection without is importance, remains challenging. Herein, using centrosymmetric (BZA) 3 BiI 6 ( 1 , BZA = benzylamine) as a template, pair chiral‐polar perovskites, 2 R / S ‐PPA)BiI 2‐ ‐PPA )‐1‐Phenylpropylamine) are successfully obtained by introducing chiral aryl cations )‐1‐Phenylpropylamine. Compared to presents significant irradiation‐responsive bulk photovoltaic effect (BPVE) with an open circuit photovoltage 0.4 V, which enables it self‐powered X‐ray, UV–vis‐NIR photodetection. Specifically, device exhibits ultralow limit 18.5 nGy s −1 excellent stability. Furthermore, first achieves broad‐spectrum (377–940 nm) via light‐induced pyroelectric effect. This work sheds light on rational crystal reconstruction engineering design toward high‐demanded radiation

Language: Английский

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The Effect of Air Ionization in Testing Perovskite-Based Direct Conversion X-ray Detectors

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 9(1), P. 271 - 274

Published: Dec. 27, 2023

ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTThe Effect of Air Ionization in Testing Perovskite-Based Direct Conversion X-ray DetectorsYuki HarutaYuki HarutaDepartment Chemistry, University Victoria, 3800 Finnerty Road, British Columbia V8P 5C2, CanadaMore by Yuki Harutahttps://orcid.org/0000-0001-8591-3850, Paul HuberPaul HuberDepartment Huber, Alexander HartAlexander HartDepartment Physics and Astronomy, Hart, Magdalena Bazalova-Carter*Magdalena Bazalova-CarterDepartment Canada*[email protected]More Bazalova-Carter, Makhsud I. Saidaminov*Makhsud SaidaminovDepartment CanadaDepartment Electrical Computer Engineering, CanadaCentre for Advanced Materials Related Technologies (CAMTEC), Saidaminovhttps://orcid.org/0000-0002-3850-666XCite this: ACS Energy Lett. 2024, 9, 1, 271–274Publication Date (Web):December 27, 2023Publication History Received8 November 2023Accepted12 December 2023Published online27 inissue 12 January 2024https://pubs.acs.org/doi/10.1021/acsenergylett.3c02399https://doi.org/10.1021/acsenergylett.3c02399article-commentaryACS PublicationsCopyright © 2023 American Chemical Society. This publication is available under these Terms Use. Request reuse permissions free to access through this site. Learn MoreArticle Views1493Altmetric-Citations1LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated reflect usage leading up last few days.Citations number other articles citing article, calculated Crossref daily. Find more information about citation counts.The Altmetric Attention Score a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InRedditEmail (5 MB) Get e-AlertscloseSupporting Info (1)»Supporting Information Supporting SUBJECTS:Atmospheric chemistry,Electrodes,Ionization,Perovskites,X-rays e-Alerts

Language: Английский

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Radiation Photovoltaics in a 2D Multilayered Chiral‐Polar Halide Perovskite toward Efficient Self‐Driven X‐Ray Detection

Small, Journal Year: 2023, Volume and Issue: 20(13)

Published: Nov. 15, 2023

Abstract 2D multilayered organic‐inorganic hybrid perovskites (OIHPs) have exhibited bright prospects for high‐performance self‐driven X‐ray detection due to their strong radiation absorption and long carrier transport. However, as an effective tool detection, photovoltaics remain rare, underdeveloped in OIHPs. Herein, chirality induce chiral OIHPs is first utilized efficient detection. Specifically, under irradiation, a chiral‐polar (S‐BPEA) 2 FAPb I 7 ( 1‐S , S‐BPEA = S )‐1‐4‐Bromophenylethylammonium, FA formamidinium) shows remarkable of 0.85 V, which endows excellent performance with considerable sensitivity 87.8 µC Gy air −1 cm −2 limit low 161 nGy s . Moreover, the high up 1985.9 80 V bias, higher than most those These results demonstrate that chirality‐induced strategy

Language: Английский

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