Highly resistive lead-free perovskite ferroelectric enables self-driven X-ray detection with ultralow dose DOI
Huawei Yang, Jianbo Wu,

Zeng‐Kui Zhu

et al.

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 110682 - 110682

Published: Nov. 1, 2024

Language: Английский

X‐ray‐ultraviolet–visible‐near‐infrared photoresponses realized in a lead‐free hybrid perovskite ferroelectric through light‐induced ferro‐pyro‐phototronic effect DOI Creative Commons
Dongying Fu, Yanli Ma, Shufang Wu

et al.

InfoMat, Journal Year: 2024, Volume and Issue: 6(10)

Published: July 1, 2024

Abstract Due to the built‐in electric field induced by spontaneous polarization in hybrid perovskite (HP) ferroelectrics, devices based on them exhibit excellent performance self‐powered photodetection. However, most of photodetector are made lead‐based HP ferroelectrics and have a relatively narrow photoresponse waveband. Although lead‐free HPs solve problem lead toxicity, their optoelectronic is inferior that waveband limited its optical band gap, which hinders further application. To this problem, herein, ferroelectric (HDA)BiI 5 (HDA hexane‐1,6‐diammonium) with large shows an enhanced photocurrent achieves x‐ray‐ultraviolet–visible‐near‐infrared (x‐ray‐UV–Vis–NIR) through ferro‐pyro‐phototronic (FPP) effect. The ferroelectric, pyroelectric, photovoltaic characteristics coupled together single‐phase effective way improve devices. What particularly attractive FPP effect not only improves , but also broadband photoresponses beyond absorption range. Especially, current boosting exceptional contrast ~1100% 2400% under 520 637 nm, respectively, associated Meanwhile, single crystal significant effects even high‐energy x‐ray, owns outstanding sensitivity 170.7 μC Gy −1 cm −2 lower detection limit 266 nGy s at 0 V bias. Therefore, it great significance study coupling multiple physical device ferroelectrics. image

Language: Английский

Citations

5
Manganese-Based Halogen Regulation Enhances Photoluminescence Efficiency Engineering DOI
Han Yan,

Lei Pan,

Ming Zhu

et al.

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(9), P. 3918 - 3924

Published: April 15, 2024

Organic–inorganic hybrid halides flourish due to their thermal stability, plasticity, and optical properties. However, performance optimization through reasonable regulation has always been a challenge. Diverse anions offer broad range of possibilities options for the development stimulus-responsive materials, thereby facilitating optimization. Here, we have successfully synthesized two organic–inorganic photoluminescent halides, (NNDP)2MnX4 (NNDP = N,N-dimethylpiperidinium chloride; X Cl, Br), with significant enhancement in photoluminescence quantum yield (4.38% → 39.91%) via halogen modulation. The increase is attributed distortion [MnX4]2– tetrahedron. Furthermore, phase-transition temperatures (NNDP)2MnCl4 (NNDP)2MnBr4 were determined as 347 335 K, respectively, thermodynamic measurement. Meanwhile, intermolecular forces analyzed using Hirshfeld surface two-dimensional (2D) fingerprint. This study injects new innovative ideas design novel materials.

Language: Английский

Citations

3
A one-dimensional organic-inorganic hybrid ferroelectric exhibiting dielectric-optical duple switch DOI
Qian Gu,

Yu-Qiao Tong,

Shoulai Yin

et al.

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A one-dimensional organic – inorganic hybrid ferroelectric, (C 4 H 8 NH 2 ) [BiCl 5 ], exhibiting a dielectric-optical duple switch is reported. Theoretical study discloses that the ferroelectricity originates from both cations and anions.

Language: Английский

Citations

0
Switchable Photovoltaic Effect and Robust Nonlinear Optical Response in a High-Temperature Molecular Ferroelectric [C8N2H22][PbI4] DOI
Zhibo Chen, Ganghua Zhang,

Jinrong Wen

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(44), P. 21275 - 21282

Published: Oct. 20, 2024

Hybrid organic-inorganic molecular ferroelectrics (HOIMFs) have garnered significant attention for their potential applications in nonvolatile memory and spintronic devices. However, few efforts been devoted to the photoelectric properties of lead halide ferroelectrics, despite fact that robust ferroelectricity flexibility are desirable thin-film Herein, we present a novel ferroelectric [C

Language: Английский

Citations

2
Regulating the Stereoisomerism of Diammonium Cations to Construct Polar Dion-Jacobson Hybrid Perovskites for Self-Powered X-ray Detection DOI
Dongying Fu, Zhuo Chen, Shufang Wu

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(10), P. 5284 - 5292

Published: May 6, 2024

Dion-Jacobson (DJ) hybrid perovskite (HP) single-crystal photodetectors often require operation under external bias due to the centrosymmetric structure of material, which is not conducive intelligence and lightweight devices. To solve this problem, key issue how regulate noncovalent interaction between interlayer diammonium cations inorganic frameworks successfully induce polarity. However, there a lack research on relationship configuration symmetry DJ HPs. Herein, we constructed series polar HPs (1,3-BMACH)PbX4 (X = Cl, Br, I; 1,3-BMACH 1,3-bis(aminomethyl)cyclohexane) by changing organic cations. It was found that hydrogen bonding strength 1,3-BMACH2+ bilateral framework different, it causes layer be more twisted, resulting in deviation positive negative charge centers I) inducing Subsequently, achieved efficient self-powered X-ray detection device (1,3-BMACH)PbBr4 through polarity-induced bulk photovoltaic effect, owns outstanding sensitivity (157.3 μC Gy–1 cm–2, 0 V bias) stability radiation. Studying crystal can help us design optoelectronic

Language: Английский

Citations

1
Bulk Photovoltaic Effect in High-Temperature Lead-Halide Molecular Ferroelectric [C4N2H14][PbI4] DOI
Ganghua Zhang, Zhibo Chen,

Jinrong Wen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(40), P. 53873 - 53880

Published: Sept. 26, 2024

Hybrid organic-inorganic molecular ferroelectrics (HOIMFs) have garnered significant attention owing to their potential applications in optoelectronic and spintronic devices. However, HOIMFs with high Curie temperature (

Language: Английский

Citations

1
Pyro-phototronic Effect Enhanced Self-Powered Photoresponse in Lead-Free Hybrid Perovskite DOI
Dongying Fu, Yanli Ma, Shufang Wu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(44), P. 60616 - 60624

Published: Oct. 25, 2024

Pyro-phototronic effect (PPE) can significantly boost the performance of hybrid perovskite (HPs) photodetectors due to effective modulation photogenerated charge carrier separations, transportation, and extraction. However, there are few reports on application PPE in lead-free HPs. Herein, a polar HP (1,3-BMACH)BiBr5 [1,3-BMACH = 1,3-bis(aminomethyl)cyclohexane] is synthesized realized broadband self-powered photoresponse from X-rays near-infrared (NIR) through PPE. Particularly, this light-induced HPs breaks limitation optical band gap, making them suitable for photodetection. Under 405 nm illumination, compared with purely photovoltaic system, Iphoto+pyro boosted by 3100%, R D* both enhanced 260% after coupled It particularly interesting that an obvious X-ray-induced phenomenon also observed, which endows high sensitivity 154 μC Gy–1 cm–2 low detection limit 307 nGy s–1 under mode. The implementation NIR provides new approach constructing environmentally friendly, broadband, optoelectronic devices future.

Language: Английский

Citations

1
Highly resistive lead-free perovskite ferroelectric enables self-driven X-ray detection with ultralow dose DOI
Huawei Yang, Jianbo Wu,

Zeng‐Kui Zhu

et al.

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 110682 - 110682

Published: Nov. 1, 2024

Language: Английский

Citations

0