Xin Dong

McGill University

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Vijaya Raghavan

McGill University

Zhao‐Hui Zhou

Xiamen University

Hongkun Tian

Chinese Academy of Sciences

Huajie Wu

Chinese Academy of Sciences

Zhijin Xu

Chinese Academy of Sciences

Yanhou Geng

Tianjin University

Lei Wang

Xinxiang Medical University

Zhiyuan Xie

Energy Foundation

Tianqi Chen

Kanazawa University

Fosong Wang

Changchun Institute of Applied Chemistry

Cooperative Institutions

Chinese Academy of Sciences

Zhejiang University

University of Chinese Academy of Sciences

Peking University

Fujian Institute of Research on the Structure of Matter

University of Science and Technology of China

Fuzhou University

Second Affiliated Hospital of Zhejiang University

Xiamen University

Sun Yat-sen University

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Realization of High‐Performance Self‐Powered Polarized Photodetection with Large Temperature Window in a 2D Polar Perovskite

Small (2023)

Lei Wang Chenhua Wu Zhijin Xu Huajie Wu Xin Dong

Abstract Polarization photodetection taking advantage of the anisotropy of 2D materials shines brilliantly in optoelectronic fields owing to differentiating optical information. However, the previously reported polarization detections are mostly dependent on external power sources, which is not conducive to device integration and energy conservation. Herein, a 2D polar perovskite (CBA) 2 CsPb 2 Br 7 ( CCPB , CBA = 4‐chlorobenzyllamine) has been successfully synthesized, which shows anticipated bulk photovoltaic effect (BPVE) with an open‐circuited photovoltage up to ≈0.2 V. Devices based on CCPB monomorph fulfill a fascinating self‐powered polarized photodetection with a large polarization ratio of 2.7 at room temperature. Moreover, CCPB features a high phase‐transition temperature (≈475 K) which prompts such self‐powered polarized photodetection in a large temperature window of device operation, since BPVE generated by spontaneous polarization can only exist in the polar structure prior to the phase transition. Further computational investigation reveals the introduction of CBA + with a large dipole moment contributes to quite large polarization (17.5 µC cm −2 ) and further super high phase transition temperature of CCPB . This study will promote the application of 2D perovskite materials for self‐powered polarized photodetection in high‐temperature conditions.

Photodetection

10.1002/smll.202310166

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Citations (1)

High-intensity ultrasound treatment of Atlantic cod: Impact on nutrients, structure, sensory quality, bioactivity, and in-vitro digestibility

Food Research International (2024)

Xin Dong Vijaya Raghavan

Protein digestibility

Whey protein isolate

10.1016/j.foodres.2024.114363

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Citations (4)

Effects of ultrasound and microwave processing on physiochemical and allergenic properties of shrimp

Xin Dong

Source

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Citations (0)

Impact of microwave processing on the secondary structure, in-vitro protein digestibility and allergenicity of shrimp (Litopenaeus vannamei) proteins

Food Chemistry (2020)

Xin Dong Jin Wang Vijaya Raghavan

Tropomyosin

Litopenaeus

Protein digestibility

10.1016/j.foodchem.2020.127811

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Citations (116)

CCDC 2096804: Experimental Crystal Structure Determination

The Cambridge Structural Database (2022)

Yan-Ru Shi Rong-Yan Lin Mao‐Long Chen Xin Dong Haiyan Li

10.5517/ccdc.csd.cc28cwvd

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Precise design of chiral-polar hybrid perovskites toward efficient self-powered full-stokes photodetection

The Innovation Materials (2024)

Huajie Wu Zhijin Xu Xin Dong Lei Wang Jing Liang

Full-Stokes polarimeters can efficiently discriminate the multipolarization of lights, showing great potential in fields of medical science, military and optoelectronics. However, most of the current full-Stokes polarimeters are limited by complex optical devices and low detection accuracy of Stokes vectors, which impeded their practical optoelectronic application. In this work, we successfully designed two novel chiral-polar hybrid perovskites, ((R)-β-MPA)PAPbI4 and ((S)-β-MPA)PAPbI4 (R-1 and S-1, MPA = methylphenethylamine and PA = propylamine), which show distinctive bulk photovoltaic effect (BPVE). The BPVE enables efficient self-driven detection of linearly and circularly polarized light (LPL and CPL, respectively) in a single-crystal device of R-1. Such detection possesses high LPL sensitivity with a polarization ratio reaching 1.52 and CPL distinguishability reaching 0.4, achieving highly accurate full-Stokes polarization detection with the Stokes parameter averaging error of less than 0.08. To the best of our knowledge, this is the first report on chiral hybrid perovskite realizing self-powered full-Stokes photodetection based on BPVE. These results provide new insights into the design of chiral materials for high-performance multipolarization photodetection.

Photodetection

10.59717/j.xinn-mater.2024.100084

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Citations (1)

Pioneering Two-Dimensional Perovskites Featuring Four-Layer Organic Spacers for Polarization-Sensitive Photodetection

ACS Applied Materials & Interfaces (2023)

Huajie Wu Zhijin Xu Xin Dong Lei Wang Liang Jing

Hybrid perovskites have great potential in photovoltaics and photodetection. Specially, two-dimensional (2D) hybrid perovskites have been discovered to show distinctive applications in polarization-sensitive photodetection due to their intrinsic anisotropy. Herein, we designed a new type of 2D perovskite by introducing bifunctional alkylammonium as an organic spacer, (β-Ala)4PbBr4 (1, where β-Ala+ is 3-aminopropanoic), which has four organic spacers in adjacent inorganic layers and adjacent organic layers are linked by hydrogen bonding. The pioneering structure with four organic spacers enables an intrinsic high strong anisotropy, facilitating polarization-sensitive detection. The analysis of the crystal structure and optical properties further elucidates the natural anisotropic properties of 1. Strikingly, 1 has a strong optical dichroism (αc/αb ≈ 7.4 in 405 nm), and the polarization-sensitive detector on single crystals of 1 exhibits a large polarization ratio (Imax/Imin ≈ 2.0). This result highlights that the employment of bifunctional cations is efficient to explore new type 2D perovskites for potentially high-performance polarization-sensitive detection.

Photodetection

10.1021/acsami.3c13650

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Citations (1)

CCDC 2237219: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Rong-Yan Lin Ru-Dan Dai Xin Dong Zhao‐Hui Zhou

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc2f30cy

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Citations (0)

CCDC 2033398: Experimental Crystal Structure Determination

The Cambridge Structural Database (2020)

Xi Chen Xin Dong Zhao‐Hui Zhou

10.5517/ccdc.csd.cc267xhw

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Critical reviews and recent advances of novel non-thermal processing techniques on the modification of food allergens

Critical Reviews in Food Science and Nutrition (2020)

Xin Dong Jin Wang Vijaya Raghavan

Nowadays, the increasing prevalence of food allergy has become a public concern related to human health worldwide. Thus, it is imperative and necessary to provide some efficient methods for the management of food allergy. Some conventional processing methods (e.g., boiling and steaming) have been applied in the reduction of food immunoreactivity, while these treatments significantly destroy nutritional components present in food sources. Several studies have shown that novel processing techniques generally have better performance in retaining original characteristics of food and improving the efficiency of eliminating allergens. This review has focused on the recent advances of novel non-thermal processing techniques including high-pressure processing, ultrasound, pulsed light, cold plasma, fermentation, pulsed electric field, enzymatic hydrolysis, and the combination processing of them. Meanwhile, general information on global food allergy prevalence and food allergy pathology are also described. Hopefully, these findings regarding the modifications on the food allergens through various novel food processing techniques can provide an in-depth understanding in the mechanism of food allergy, which in turn possibly provides a strategy to adapt in the reduction of food immunoreactivity for the food industries.

Steaming

Food Products

10.1080/10408398.2020.1722942

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Citations (140)