Publications by authors named "Pei-Yan Zhao"

Achieving multi-spectrum compatible stealth in radar-terahertz-infrared bands with robust performance has great prospects for both military and civilian applications. However, the progress of materials encounters substantial challenges due to the significant variability in frequency coupling properties across different electromagnetic wave bands. Here, this work presents the design of a multi-scale structure and fabricates a lightweight aerogel (silver nanowire@carbon, AgNW@C) consisting of a regular coaxial nano-cable, with silver nanowire as the core and amorphous-graphitized hybrid carbon as the outer-layer.

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By manipulating their asymmetric electronic spin states, the unique electronic structures and unsaturated coordination environments of single atoms can be effectively harnessed to control their magnetic properties. In this research, the first investigation is presented into the regulation of magnetic properties through the electronic spin states of single atoms. Magnetic single-atom one-dimensional materials, M-N-C/ZrO (M = Fe, Co, Ni), with varying electronic spin states, are design and synthesize based on the electronic orbital structure model.

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Improving the absorption of electromagnetic waves at low-frequency bands (2-8 GHz) is crucial for the increasing electromagnetic (EM) pollution brought about by the innovation of the fifth generation (5G) communication technology. However, the poor impedance matching and intrinsic attenuation of material in low-frequency bands hinders the development of low-frequency electromagnetic wave absorbing (EMWA) materials. Here we propose an interface-induced dual-pinning mechanism and establish a magnetoelectric bias interface by constructing bilayer core-shell structures of NiFeO (NFO)@BiFeO (BFO)@polypyrrole (PPy).

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The 3D hollow hierarchical architectures tend to be designed for inhibiting stack of MXene flakes to obtain satisfactory lightweight, high-efficient and broadband absorbers. Herein, the hollow NiCo compound@MXene networks were prepared by etching the ZIF 67 template and subsequently anchoring the TiCT nanosheets through electrostatic self-assembly. The electromagnetic parameters and microwave absorption property can be distinctly or slightly regulated by adjusting the filler loading and decoration of TiCT nanoflakes.

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Article Synopsis
  • - The study describes the creation of a Ni/MWCNTs (Nickel/Multiwalled Carbon Nanotubes) absorber, focusing on optimizing its properties by adjusting the amount of filler in a PVDF (Polyvinylidene Fluoride) matrix.
  • - It was found that increasing the Ni/MWCNTs content enhances the dielectric properties, with 20 wt% yielding the best impedance matching, which is crucial for effective electromagnetic wave absorption.
  • - Notably, the optimal configuration attained a minimum reflection loss of -46.85 dB at 6.56 GHz and a broad effective bandwidth of 14.0 GHz, suggesting the potential for efficient and scalable production of microwave-absorbing materials for industrial
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In the present study, we developed a multi-functional guanine derivative, G, as a G-quadruplex stabilizer, a fluorescent probe for the detection of G-quadruplex formation, and a F sensor for the observation of the G-quadruplex. We demonstrate that the functional nucleoside bearing a 3,5-bis(trifluoromethyl)benzene group at the 8-position of guanine stabilizes the DNA G-quadruplex structure and fluoresces following the G-quadruplex formation. Furthermore, we show that the functional sensor can be used to directly observe DNA G-quadruplexes by F-NMR in living cells.

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