Ziqun Wang

ORCID: 0000-0003-4411-191X
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About
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Research Areas
  • Plasmonic and Surface Plasmon Research
  • Metamaterials and Metasurfaces Applications
  • Terahertz technology and applications
  • Advanced Photocatalysis Techniques
  • Molecular Junctions and Nanostructures
  • Graphene research and applications
  • Quantum and electron transport phenomena
  • Photonic and Optical Devices
  • Advanced biosensing and bioanalysis techniques
  • Copper-based nanomaterials and applications
  • Millimeter-Wave Propagation and Modeling
  • Photonic Crystals and Applications
  • Antenna Design and Analysis
  • Electrocatalysts for Energy Conversion
  • Nanocluster Synthesis and Applications
  • MXene and MAX Phase Materials
  • Nanowire Synthesis and Applications
  • Ammonia Synthesis and Nitrogen Reduction
  • Thermal Radiation and Cooling Technologies
  • Quantum Dots Synthesis And Properties
  • 2D Materials and Applications
  • Orbital Angular Momentum in Optics
  • Boron and Carbon Nanomaterials Research
  • Molecular Communication and Nanonetworks
  • Surface and Thin Film Phenomena

Zaozhuang University
2022-2025

Nanjing Tech University
2022-2023

Huaibei Normal University
2018-2023

Shandong Normal University
2018-2020

Huaibei Mining (China)
2018

Tarim University
2016

Biosensors based on terahertz (THz) metasurfaces have recently attracted widespread attention. However, few been reported so far because it is a challenge to achieve ultrasensitive multidimensional detection in the THz spectrum. Here, we propose novel biosensor that consists of and metal oxide semiconductor-like structure (MOSLS), which patterned graphene-polyimide-perovskite. We varied photoconductivity MOSLS via electrostatic doping effect. The could detect whey protein down concentration...

10.1515/nanoph-2021-0816 article EN cc-by Nanophotonics 2022-02-02

Integrating novel materials is critical for the ultrasensitive, multi-dimensional detection of biomolecules in terahertz (THz) range. Few studies on THz biosensors have used semiconductive active layers with tunable energy band structures. In this study, we demonstrate three detecting casein molecules based hybridization metasurface graphitic carbon nitride, graphene, and heterojunction. We achieved low-concentration a 3.54 ng/mL limit sensing by observing degrees variations (frequency...

10.1364/prj.482256 article EN Photonics Research 2023-03-08

Food safety is an important consideration for the food industry and daily life, additives are essential in modern industry. Graphene-based metamaterial sensors of great value have potential applications detection additives, due to their ultra-sensitivity. This paper proposes a metasurface sensor consisting graphene dual elliptical ring resonators (Gr-DERRs) two common additives. The limit (LOD) Sudan I solution 581.43 fg/ml and, taurine, 52.86 fg/ml. ultra-sensitive achieved by exploiting...

10.1364/oe.498639 article EN cc-by Optics Express 2023-08-21

Although terahertz metasurface-enabled biosensors focus on current research, reports of multidimensional ultra-sensitive detection in the (THz) regime are rare. Here, we present a novel flexible THz biosensor that consists electromagnetic-induced transparency-like metasurfaces and patterned graphene, which is used for plant protein. Based changes frequencies amplitude, proposed could detect protein molecules with 42.3 pg/ml limit. The internal mechanism can be explained by positive impact...

10.1016/j.rinp.2022.105884 article EN cc-by-nc-nd Results in Physics 2022-08-11

Abstract The strong‐coupling microcavity between excitons and photons facilitates efficient modulation control of light, as well precise manipulation photon propagation properties. This phenomenon demonstrates significant potential for diverse applications in quantum information processing, optical sensing, nonlinear optics. anapole, a specific type captured state, allows effective over the electromagnetic field through appropriate distributions current charge, generating substantial...

10.1002/advs.202416951 article EN cc-by Advanced Science 2025-02-28

Although the CdS photocatalyst has been extensively investigated, a rational hydrothermal synthesis route is still required to prepare highly active for H2 evolution reaction (HER). To optimize precursor of sulfur source, three prevalent organic sources thiourea (TA), thioacetamide (TAA) and l-cysteine (l-Cys) were used CdS. Their effects on crystallographic structure, morphology, optical property, band photocatalytic HER performance products then investigated systematically. The results...

10.1039/c8ra00250a article EN cc-by RSC Advances 2018-01-01

Protein is an essential substance for human growth and development. Here, a graphene composite metal metamaterial sensor (GM) multidimensional ultrasensitive detection of whey protein presented. Its terahertz (THz) transmission spectrum features transparent peak at frequency 1.14 THz due to hybridization. The amplitude this shows obvious change with the increasing whey-protein concentration. Based on in resonant peak, solutions trace amounts 207 fg/mL can be detected. In addition, dimension...

10.1109/jsen.2024.3374703 article EN IEEE Sensors Journal 2024-03-18

In this paper, a terahertz metamaterial structure with multiple physical features such as EIT-like resonance, Fano and wave absorption, is implemented. The device consists of metal GaAs layer. conductivity can be adjusted by optical pump. When the 10 S/m, TE polarization incenting, resonance formed, when TM was formed. Modulation achieved adjusting GaAs, maximum modulation depth 96.5% obtained. 2 × 5 double narrow-band absorption obtained exciting. sensitivity reaches 513 GHz/RIU FOM value...

10.1364/ome.477441 article EN cc-by Optical Materials Express 2023-01-04

Terahertz (THz) metamaterial (MM) biosensors are a potential method of biomolecule detection. However, there have been few reports on the detection trace proteins. In this study, we designed novel THz biosensor consisting graphene, polyimide (PI), and electromagnetically induced transparency-like (EIT-like) MMs for ultra-sensitive ovalbumin (OVA). The doping analyte can influence Fermi level electrical conductivity as well coupling resonators in MMs. These changes reflected magnitude, phase,...

10.3390/photonics10010067 article EN cc-by Photonics 2023-01-07

The combined application of metasurface and terahertz (THz) time-domain spectroscopy techniques has received considerable attention in the fields sensing detection. However, to detect trace samples, THz wave must still be enhanced locally using certain methods improve detection sensitivity. In this study, we proposed experimentally demonstrated a fano resonance metasurface-based silver nanoparticles (FaMs-AgNPs) sensor. AgNPs can enhance sensitivity sensor by generating charge accumulation...

10.1364/oe.507681 article EN cc-by Optics Express 2023-12-13

Molecular switches, as one of the functional molecular components, play a vital role in nanoscale logic circuits. Here, effect intramolecular proton transfer on current single-molecule devices consisting keto or enol molecule sandwiched between two magnetic zigzag graphene nanoribbon (zGNR) electrodes is theoretically investigated. The and tautomers interconvert into each other by transfer. results show that device hardly observed, whereas significantly enhanced, demonstrating highly...

10.1021/acs.jpcc.8b03761 article EN The Journal of Physical Chemistry C 2018-07-19

Modulating the electronic and magnetic properties of phosphorene is important for fabricating multi-functional spintronic devices.

10.1039/c9cp00072k article EN Physical Chemistry Chemical Physics 2019-01-01

Terahertz logic gates play a vital role in optical signal processing and terahertz digitization. Herein, strategy to design an all-optical gate device composed of metamaterials with semiconductor-metal hybrid is proposed; accordingly, concrete Ge embedded-in Au stripe supported by Si board presented theoretically. Simulation results reveal the dependence transmission spectra on different illuminations device. Based illumination-transmission response, designed can realize NOR or OR Boolean...

10.1364/oe.473601 article EN cc-by Optics Express 2022-10-07
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