A5100399276- Advanced Fiber Laser Technologies
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Photonic Crystal and Fiber Optics
- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Photonic and Optical Devices
- Laser-Matter Interactions and Applications
- Nanoplatforms for cancer theranostics
- Graphene research and applications
- Advanced biosensing and bioanalysis techniques
- Solid State Laser Technologies
- Advancements in Battery Materials
- Functional Brain Connectivity Studies
- Quantum Dots Synthesis And Properties
- Advanced Fiber Optic Sensors
- Gas Sensing Nanomaterials and Sensors
- Advanced Battery Materials and Technologies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Supercapacitor Materials and Fabrication
- Chalcogenide Semiconductor Thin Films
- Electrocatalysts for Energy Conversion
- Luminescence and Fluorescent Materials
- Advanced Nanomaterials in Catalysis
Shenzhen University
2016-2025
Shandong University
2016-2025
Chinese Academy of Sciences
2016-2025
Nankai University
2008-2025
Nanjing Tech University
2018-2025
State Key Laboratory of Crystal Materials
2014-2025
Hebei University
2016-2025
The First Affiliated Hospital, Sun Yat-sen University
2022-2025
Zhongshan Hospital
2013-2025
Fudan University
2016-2025
Defect-rich MoS2 ultrathin nanosheets are synthesized on a gram scale for electrocatalytic hydrogen evolution. The novel defect-rich structure introduces additional active edge sites into the nanosheets, which significantly improves their performance. Low onset overpotential and small Tafel slope, along with large cathodic current density excellent durability, all achieved hydrogen-evolution-reaction electrocatalyst.
Abstract The optical conductance of monolayer graphene is defined solely by the fine structure constant, α = $e^2 /\hbar c$ (where e electron charge, $\hbar $ Dirac's constant and c speed light). absorbance has been predicted to be independent frequency. In principle, interband absorption in zero‐gap could saturated readily under strong excitation due Pauli blocking. Here, use atomic layer as saturable absorber a mode‐locked fiber laser for generation ultrashort soliton pulses (756 fs) at...
The nonlinear optical property of few-layered MoS 2 nanoplatelets synthesized by the hydrothermal exfoliation method was investigated from visible to near-infrared band using lasers.Both open-aperture Z-scan and balanced-detector measurement techniques were used demonstrate broadband saturable absorption fewlayered .To explore its potential applications in ultrafast photonics, we fabricated a passive mode locker for ytterbium-doped fibre laser depositing onto end facet fiber means an...
Although phosphorene has attracted much attention in electronics and optoelectronics as a new type of two‐dimensional material, in‐depth investigations applications have been limited by the current synthesis techniques. Herein, basic N ‐methyl‐2‐pyrrolidone (NMP) liquid exfoliation method is described to produce with excellent water stability, controllable size layer number, well high yield. Phosphorene samples composed one four layers exhibit layer‐dependent Raman scattering characteristics...
Black phosphorus (BP), an emerging narrow direct band-gap two-dimensional (2D) layered material that can fill the gap between semi-metallic graphene and wide-bandgap transition metal dichalcogenides (TMDs), had been experimentally found to exhibit saturation of optical absorption if under strong light illumination. By taking advantage this saturable property, we could fabricate a new type absorber (SA) based on mechanically exfoliated BPs, further demonstrate applications for ultra-fast...
Abstract Black phosphorus quantum dots (BPQDs) were synthesized using a liquid exfoliation method that combined probe sonication and bath sonication. With lateral size of approximately 2.6 nm thickness about 1.5 nm, the ultrasmall BPQDs exhibited an excellent NIR photothermal performance with large extinction coefficient 14.8 Lg −1 cm at 808 conversion efficiency 28.4 %, as well good photostability. After PEG conjugation, showed enhanced stability in physiological medium, there was no...
2D black phosphorus (BP) nanomaterials are presented as a delivery platform. The endocytosis pathways and biological activities of PEGylated BP nanosheets in cancer cells revealed for the first time. Finally, triple-response combined therapy strategy is achieved by nanosheets, showing promising enhanced antitumor effect. As service to our authors readers, this journal provides supporting information supplied authors. Such materials peer reviewed may be re-organized online delivery, but not...
MXenes, generally referring to two-dimensional (2D) transition-metal carbides, nitrides, and carbonitrides, have received tremendous attention since the first report in 2011. Extensive experimental theoretical studies unveiled their enormous potential for applications optoelectronics, photonics, catalysis, many other areas. Because of intriguing mechanical electronic properties, together with richness elemental composition chemical decoration, MXenes are poised provide a new 2D nanoplatform...
Significance Precision delivery of cancer drugs to tumor site is crucial for improving therapeutic efficacy and minimizing adverse effects. Despite tremendous efforts, current drug systems remain an unmet clinical need therapy. Herein, we propose a unique concept applying external light control in tissues. In preclinical models, demonstrate that the near-infrared light-induced decomposition black phosphorus hydrogel accurately releases tissues eradicate subcutaneous breast melanoma cancers...
The technological evolution has been progressing for centuries and will possibly increase at a higher rate in the 21st century.
By adopting the differential age method, we select 17 832 luminous red galaxies from Sloan Digital Sky Survey Data Release Seven covering redshift 0 < z 0.4 to measure Hubble parameter. Using full spectrum fitting package UlySS, these spectra are reduced with single stellar population models and optimal information our selected sample is derived. With decreasing age-redshift relation, four new observational H(z) data (OHD) points obtained, which = 69.0 ± 19.6 km s−1 Mpc−1 at 0.07, 68.6...
We describe a graphene and single-walled carbon nanotube (SWCNT) composite film prepared by blending process for use as electrodes in high energy density supercapacitors. Specific capacitances of 290.6 F g−1 201.0 have been obtained single electrode aqueous organic electrolytes, respectively, using more practical two-electrode testing system. In the electrolyte reached 62.8 Wh kg−1 power 58.5 kW kg−1. The addition nanotubes raised 23% 31% than electrodes. graphene/CNT exhibited an ultra-high...
Abstract Studies of the nonlinear optical phenomena that describe light‐matter interactions in 2D crystalline materials have promoted a diverse range photonic applications. MXene, as recently developed new material, has attracted considerable attention because its graphene‐like but highly tunable and tailorable electronic/optical properties. In this study, we systematically characterize response MXene Ti 3 C 2 T x nanosheets over spectral 800 nm to 1800 nm. A large effective absorption...
Black phosphorous (BP), the most thermodynamically stable allotrope of phosphorus, is a high-mobility layered semiconductor with direct band-gap determined by number layers from 0.3 eV (bulk) to 2.0 (single layer). Therefore, BP considered as natural candidate for broadband optical applications, particularly in infrared (IR) and mid-IR part spectrum. The strong light-matter interaction, narrow band-gap, wide range tunable response make promising nonlinear material, great potentials...
In this paper, we focus on how to boost the multi-view clustering by exploring complementary information among features. A framework, called Diversity-induced Multi-view Subspace Clustering (DiMSC), is proposed for task. our method, extend existing subspace into domain, and utilize Hilbert Schmidt Independence Criterion (HSIC) as a diversity term explore complementarity of representations, which could be solved efficiently using alternating minimizing optimization. Compared other methods,...
MicroRNA exhibits differential expression levels in cancer and can affect cellular transformation, carcinogenesis metastasis. Although fluorescence techniques using dye molecule labels have been studied, label-free molecular-level quantification of miRNA is extremely challenging. We developed a surface plasmon resonance sensor based on two-dimensional nanomaterial antimonene for the specific detection clinically relevant biomarkers such as miRNA-21 miRNA-155. First-principles energetic...
Under strong laser illumination, few-layer graphene exhibits both a transmittance increase due to saturable absorption and nonlinear phase shift. Here, we unambiguously distinguish these two optical effects identify real imaginary parts of the complex refractive index graphene. We show that possesses giant n2=10-7cm2W-1, almost nine orders magnitude larger than bulk dielectrics. find decreases with increasing excitation flux but slower absorption. This suggests may be very promising medium,...
Under strong laser radiation, a Dirac material, the topological insulator (TI) Bi2Te3, exhibits an optical transmittance increase as result of saturable absorption. Based on open-aperture Z-scan measurement at 1550 nm, we clearly show that TI, Bi2Te3 under our investigation, is indeed very-high-modulation-depth (up to 95%) absorber. Furthermore, TI based absorber device was fabricated and used passive mode locker for ultrafast pulse formation telecommunication band. This contribution...
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...