A5100645040- Advanced Fiber Laser Technologies
- Laser-Matter Interactions and Applications
- 2D Materials and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanocluster Synthesis and Applications
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Diamond and Carbon-based Materials Research
- Photonic Crystal and Fiber Optics
- Solid State Laser Technologies
- Biosensors and Analytical Detection
- MXene and MAX Phase Materials
- Quantum Dots Synthesis And Properties
- Nanowire Synthesis and Applications
- Luminescence and Fluorescent Materials
- Nonlinear Optical Materials Studies
- Perovskite Materials and Applications
- Advanced biosensing and bioanalysis techniques
- Catalytic Processes in Materials Science
- Graphene research and applications
- Advanced Condensed Matter Physics
- Laser-induced spectroscopy and plasma
- Laser-Plasma Interactions and Diagnostics
- Carbon and Quantum Dots Applications
- Multiferroics and related materials
Fudan University
2012-2025
University of South China
2025
University of Macau
2024
Shandong University of Technology
2024
Shenzhen University
2019-2023
Institute of Physics
2021-2022
Chinese Academy of Sciences
2021-2022
Shandong Normal University
2016-2022
Hubei University of Medicine
2013-2022
National Laboratory for Superconductivity
2022
2D transition metal carbides or nitrides, known as MXenes, are a new family of materials with close to 30 members experimentally synthesized and dozens more theoretically investigated. Because the abundant surface terminations, MXenes have been compounded various by multi-interactions. In addition prevented aggregation oxidation MXene flakes, MXene/polymer membranes exhibit outstanding mechanical, thermal, electrical properties due synergistic effects. However, relatively little is currently...
Graphdiyne (GDY), a newly emerging 2D carbon allotrope, has been widely explored in various fields owing to its outstanding electronic properties such as the intrinsic bandgap and high carrier mobility. Herein, GDY-based photoelectrochemical-type photodetection is realized by spin-coating ultrathin GDY nanosheets onto flexible poly(ethylene terephthalate) (PET) substrates. The photodetectors (PDs) demonstrate excellent photo-responsive behaviors with photocurrent (Pph , 5.98 µA cm-2 ),...
Abstract Carbon dots (CDs) are a burgeoning star of luminescent carbon‐based nanomaterials with emerging interest for various applications. Luminescence from the sp 2 ‐conjugated domains in carbon cores is considered to be intrinsic bandgap emission CDs, whereas relationship between them remains poorly understood. Simultaneously, solvent relaxation water molecules will quench fluorescence thus, obtaining strong luminescence CDs aqueous solutions great challenge. Herein, facile one‐step...
Abstract Q‐switched fiber lasers are of great interest in industrial material processing, nonlinear frequency conversion, spectroscopy etc. However, passive Q‐switching possesses drawbacks degradation and failure the saturable absorber difficulty accurate modification repetition rate. To overcome these issues, active that can normally modulate cavity quality‐factor by an externally‐driven Q‐switcher is high demand. Herein, actively laser with antimonene‐based all‐optical modulator devised...
Highly active surface-enhanced Raman scattering (SERS) substrates of Ag nanoparticle (Ag-NP) modified Fe3O4@carbon core–shell microspheres were synthesized and characterized. The carbon coated Fe3O4 prepared via a one-pot solvothermal method served as the magnetic supporting substrates. Ag-NPs deposited by in situ reduction AgNO3 with butylamine thickness Ag-NP layer was variable controlling concentrations. structure integrity Fe3O4@C@Ag composite confirmed TEM, XRD, VSM UV-visible...
Abstract As a rising star of all‐carbon nanomaterial, graphdiyne (GDY) has direct natural bandgap and features strong light–matter interaction, large optical absorption, superior chemical stability, indicating its broad prospects in the field photonics optoelectronics. Herein, broadband nonlinear absorption transient characteristics GDY from visible to infrared region been studied for first time, promising application ultrafast explored. The coefficient (> −1 cm GW ), low saturation...
Tellurium (Te) exhibits many intriguing properties including thermoelectricity, photoelectricity, piezoelectricity, and photoconductivity, is widely used in detectors, sensors, transistors, energy devices. Herein, ultrathin two-dimensional (2D) Te nanosheets were fabricated using a facile cost-effective liquid-phase exfoliation method. Mixing the as-prepared 2D with polyvinylpyrrolidone (PVP) provided uniform Te/PVP membrane. The membrane exhibited excellent mechanical properties, thermal...
Abstract As one of the rising 2D materials, niobium‐carbide (Nb 2 C, well‐known as a member MXene family) has attracted considerable attention owing to its unique physical and chemical properties. In this work, few‐layer Nb C nanosheets (NSs) with large (≈255 nm) small (≈48 lateral dimensions are obtained via combination selective etching liquid cascade centrifugation. Their relaxation time photophysics process systematically investigated by transient absorption spectroscopy, size effect is...
Abstract A new member of the IV–V compounds, germanium–phosphorus (Ge–P) has been shown in experiment and theory to have a tunable bandgap ( E g ), excellent chemical stability, strong in‐plane anisotropy, wide‐range optical absorption, all indicating promising future electronic optoelectronic applications. In this work, application potential Ge–P compounds as nonlinear (NLO) materials ultrafast photonics is studied for first time. The light–matter interaction, broad p , broadband response...
Abstract Graphdiyne (GDY) is a novel 2D all‐carbon nanomaterial, which has an intransic band gap, strong light–matter interaction, and large optical absorption in the infrared region, indicating that it great potential field of mid‐infrared ultrafast photonics. Here, Z‐scan method used to demonstrate broadband nonlinear (NLO) response GDY, its performance application photonics explored for first time. The experimental results parameters are superior current mainstream materials. By using GDY...
MXenes, as an emerging group of two-dimensional materials, have attracted significant interest for diverse photoelectric applications by virtue their tunable terminated surface, excellent electrical conductivity, and strong nonlinear optical response. They are usually synthesized via strategies involving hydrofluoric acid, which may result in oxygenic hydrophilic termination groups on the MXene surface thus decrease stability air. Herein, a mild synthesis method based electrochemical...
Black arsenic phosphorus (b-AsP), as one kind of novel two-dimensional (2D) materials, bridges the band gap between black and graphene. Thanks to its great advantages, including high carrier mobility, excellent in-plane anisotropy, broad tunability gap, b-AsP has aroused interest in fields photonics photoelectronics. In this paper, ultrathin 2D nanomaterials were fabricated by liquid-phase exfoliation method, their strong broadband linear nonlinear absorptions characterized...
In this study, a class of surface enhanced Raman spectroscopy (SERS) encoded core–shell nanospheres was synthesized as nano-SERS-tags for detecting specific DNA targets based on the sandwich hybridization assays. These were by first depositing layer Ag-NPs (nanoparticles) onto poly(styrene-co-acrylic acid) core and then formation uniform silica outer shell. The served SERS substrates with active molecular probes adsorbed indicative barcodes, coating shell used protecting molecules from...
By combine the Ag nanoparticles, pyramidal silicon and molybdenum disulfide, MoS<sub>2</sub>@AgNPs@PSi substrate shows high performance in terms of sensitivity, uniformity, reproducibility stability.
As a two-dimensional material, MXene has accordion-like structures and possesses highly tunable tailorable electro-optical capabilities, which suggests that it can be extensively used for electro-photonics devices. Here, we investigate the performances of 2D Ti3C2Tx in nonlinear optical application ultrafast photonics spanning near-infrared (NIR) mid-infrared (MIR) ranges. Interestingly, by utilizing combined effects saturable absorption high nonlinearity properties photonic device based on...
Mode-locking lasers have not only produced huge economic benefits in industrial fields and scientific research, but also provided an excellent platform to study diverse soliton phenomena. However, the real-time characterization of ultrafast dynamics remains challenging for traditional electronic instruments due their relatively low response bandwidth slow scan rate. Consequently, it is urgent researchers directly observe these evolution processes, rather than just indirectly understand them...
2D MBenes, the latest derivatives of bulk ternary or quaternary transition metal boride (MAB) phases, have gradually attracted increasing research attention as novae in flatland. However, fabrication MBenes is still a great challenge at present, leading to lack reported MBene applications photonic field (e.g., ultrafast lasers). Hence, we successfully fabricated few-layer Mo4/3B2–xTz by selectively etching nanolaminated 3D parent (Mo2/3Y1/3)2AlB2. Density functional theory calculations were...
Abstract We present a novel surface-enhanced Raman scattering (SERS) substrate based on graphene oxide/silver nanoparticles/copper film covered silicon pyramid arrays (GO/AgNPs/PCu@Si) by low-cost and simple method. The GO/AgNPs/PCu@Si presents high sensitivity, good homogeneity well stability with R6G molecules as probe. detected concentration of Rhodamine 6 G (R6G) is low 10 −15 M. These sensitive SERS behaviors are also confirmed in theory via commercial COMSOL software, the electric...