A5036423779- 2D Materials and Applications
- Perovskite Materials and Applications
- Graphene research and applications
- Chalcogenide Semiconductor Thin Films
- Electronic and Structural Properties of Oxides
- Neonatal Health and Biochemistry
- MXene and MAX Phase Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Drug Delivery Systems
- Topological Materials and Phenomena
- Quantum and electron transport phenomena
- Plasmonic and Surface Plasmon Research
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetic and transport properties of perovskites and related materials
- Molecular Junctions and Nanostructures
- ZnO doping and properties
- Conducting polymers and applications
- Protein purification and stability
- Quantum Dots Synthesis And Properties
- Advanced Condensed Matter Physics
- RNA Interference and Gene Delivery
- Solid-state spectroscopy and crystallography
- Antimicrobial Peptides and Activities
- Metal and Thin Film Mechanics
Union Hospital
2024
University of Science and Technology of China
2001-2024
Jilin University
2024
Tohoku University
2021-2024
Union Hospital
2024
Hong Kong University of Science and Technology
2018-2023
University of Hong Kong
2018-2023
Purdue University West Lafayette
2021-2023
Advanced Institute of Materials Science
2021-2022
Nankai University
2016-2019
We demonstrate the type-II staggered band alignment in MoTe2/MoS2 van der Waals (vdW) heterostructures and an interlayer optical transition at ∼1.55 μm. The photoinduced charge separation between vdW heterostructure is verified by Kelvin probe force microscopy (KPFM) under illumination, density function theory (DFT) simulations photoluminescence (PL) spectroscopy. Photoelectrical measurements of show a distinct photocurrent response infrared regime (1550 nm). creation with strong coupling...
Large-scale transparent and flexible electronic devices have been pursued for potential applications such as those in touch sensors display technologies. These require that the power source of these must also comply with features. Here we present supercapacitors assembled from polyaniline (PANI)/single-walled carbon nanotube (SWNT) composite thin film electrodes. The ultrathin, optically homogeneous transparent, electrically conducting films PANI/SWNT show a large specific capacitance due to...
Hybrid perovskite thin films are prone to producing surface vacancies during the film formation, which degrade stability and photovoltaic performance. Passivation via post-treatment can heal these defects, but present methods slightly destructive bulk of 3D due solvent effect, hinders fabrication reproducibility. Herein, nondestructive surface/interface passivation using 4-fluoroaniline (FAL) is established. FAL not only an effective antisolvent candidate for modification, also a large...
Transition metal diselenides (MSe2, M=Ni, Co, Fe) were synthesized successfully through a simple solvothermal-reduction reaction at low temperatures. EDXA and XPS techniques confirmed that the compositions of these in good agreement with their stoichiometries. With increasing temperature, obtained NiSe2 transformed from initial filament nanocrystallites to final octahedral crystals. The studies on thermal stability as-prepared showed NiSe acted an intermediate role pyrolysis process. Raman...
Strong base anion exchange resin (e.g., BL-300) is currently used to eliminate bilirubin from blood in clinical hemoperfusion. However, there a potential weakness of the remove heparin and activation coagulation. To overcome this weakness, we prepared novel non-ionic macroporous polystyrene adsorbent (SZ-9) with rich mesopores high surface area by suspension polymerization. Test results indicated that SZ-9 performed better adsorption capacity for than BL-300. In addition, compatibility was...
Spin–orbit coupling (SOC) plays a crucial role for spintronics applications. Here we present the first demonstration that Rashba SOC at SrTiO3-based interfaces is highly tunable by photoinduced charge doping, is, optical gating. Such manipulation nonvolatile after removal of illumination in contrast to conventional electrostatic gating and also erasable via warming–cooling cycle. Moreover, evolutions tuned illuminations with different wavelengths various gate voltages coincide each other...
A multi-functional polystyrene based adsorbent (NKU-9) with a unique mesoporous and high surface area was prepared by suspension polymerization for removal of therapeutic toxins in blood purification. The produced had an almost equal amount mesopore distribution the range from 2 to 50 nm. adsorption serum different molecular weights were examined vitro assays compared some clinical currently used adsorbents such as HA-330, Cytosorb BL-300 which are China, America Japan, respectively. Test...
Monolayer transition metal dichalcogenides (ML-TMDCs) are a versatile platform to explore the transport dynamics of tightly bound excitonic states. The diffusion neutral excitons in various ML-TMDCs has been observed. However, charged (trions), which can be driven by an in-plane electric field and facilitate formation current, yet well investigated. Here, we report direct observation drift trions ML-WS2 through spatially time-resolved photoluminescence. An effective coefficient 0.47 cm2/s...
Van der Waals (vdW) magnet heterostructures have emerged as new platforms to explore exotic magnetic orders and quantum phenomena. Here, we study of layered antiferromagnets, CrI3 CrCl3, with perpendicular in-plane anisotropy, respectively. Using magneto-optical Kerr effect microscopy, demonstrate out-of-plane order in the CrCl3 layer proximal CrI3, ferromagnetic interfacial coupling between two. Such an interlayer exchange field leads higher critical temperature than that either or alone....
Chitosan-carbon nanotube composite beads combines the advantages of chitosan in forming a stable biocompatible framework and carbon that provide nanometer effects (high strength high specific surface area etc.). In this study, chitosan/amino multiwalled nanotubes (CS/AMWCNT) was prepared by phase-inversion method, which CS AMWCNT crosslinked ethylene glycol diglycidyl ether (EGDE). The CS/AMWCNT nanocomposite produced has been characterized BET, SEM, TGA, Raman spectroscopy exhibited...
Gallium nitride (GaN)-based light-emitting diodes (LEDs) are important for lighting and display applications. In this paper, we demonstrate green-emission (512 nm) InGaN quantum dot (QD) LEDs grown on a c -plane sapphire substrate by metal-organic chemical vapor deposition. A radiative lifetime of 707 ps the uniform self-assembled QDs is obtained time-resolved photoluminescence measurement at 18 K. The screening built-in fields in effectively improves performance QD LEDs. These high...
van der Waals heterostructures that are usually formed using atomically thin transition-metal dichalcogenides (TMDCs) with a direct band gap in the near-infrared to visible range promising candidates for low-dimension optoelectronic applications. The interlayer interaction or coupling between two-dimensional (2D) layer and substrate adjacent 2D layers plays an important role modifying properties of individual material device performances through Coulomb forming excitons. Here, we report...
Abstract In recent years, lightwave has stood out as an ultrafast, non-contact control knob for developing compact superconducting circuitry. However, the modulation efficiency is limited by low photoresponse of superconductors. Plasmons, with advantages strong light-matter interaction, present a promising route to overcome limitations. Here we achieve effective superconductivity in thin-film NbSe 2 via near-field coupling plasmons gold nanoparticles. Upon resonant plasmon excitation,...
Highly stable excited-state biexcitons are found in graphene/WS<sub>2</sub>/BN heterostructures, which is attributed to the charge transfer and exciton dissociation at hetero-interface.
A novel polyvinyl alcohol-amino multi-walled carbon nanotube (PVA-AMWCNT) nanocomposite microsphere was prepared successfully for the first time and used endotoxin removal. The resulting AMWCNT modified PVA characterized by SEM, Raman spectrum fluorescence image, which indicated dispersed into macropores of uniformly. PVA-AMWCNT microspheres showed better adsorption capability faster equilibrium in aqueous solution when compared to with polymyxin B (PMB) as ligand. More noteworthy, based had...
Bandgap engineering offers opportunities for tailoring the properties of semiconductor materials desired applications in microelectronics and optoelectronics. Alloys different can lead to continuously tuning bandgap. Here, we report bandgap layered InSe single crystals by substituting Se atoms with S atoms. The formation InSxSe1–x crystal alloy x ≤ 0.3 is evidenced X-ray diffraction resonant Raman spectra. photoluminescence (PL) spectra peak position blue shifts from ∼1.27 ∼1.42 eV as...
The linear positive magnetoresistance (MR) and negative MR are emerging as intriguing phenomena in topological materials. Here, we report the magnetotransport properties of insulator Bi2Se3 flakes with different thicknesses grown by chemical vapor deposition. A non-saturating is observed perpendicular fields (B⊥I), while an evident parallel (B//I). Both show a magnetic field dependence at high (B &gt; 8 T). In addition, two types carriers extracted from nonlinear Hall resistance...
A folded bilayer graphene device as an experimentally realizable platform to produce one-dimensional topological zero-line modes is proposed. The new scheme has the advantage that it completely obviates conventional approach, which relies on precise alignment of split gates, and supported by experimental fabrication with a well-controlled folding angle. These findings open up field for application graphene, pave way realize low-power-consuming quantum devices.
Proximity to functional substrates may enhance the coupling between quantum degrees of freedom and thus develop nontrivial effects in graphene. Here, we demonstrate successful fabrication graphene proximity atomically flat magnetic insulating LaMnO3 films. The nature films not only ensures electronic transport occur layers but also allow them serve as dielectric for gating. Transport measurements reveal anomalous behaviors, including asymmetrical longitudinal magnetoresistivity nonlinear...
PS-DVB/nano-CaCO3, a novel abundant mesoporous structured polymer nano-composite, was successfully synthesized via suspension polymerization. Characterization of this type bead nano-composite demonstrated that it exhibits significantly enhanced TNF-α adsorption from blood plasma and possesses good mechanical strength.
A novel nano-CaCO<sub>3</sub>(nCaCO<sub>3</sub>) particle composite-derived polystyrene (PS) resin can show high adsorption capacity for interleukin-6 from human plasma.
Multicomponent quasi-two-dimensional perovskites (Q-2DPs) have efficient luminescence and improved stability, which are highly desirable for light-emitting diode perovskite solar cell (PSC). However, the lack of radiative recombination at room temperature is still not well understood performance PSC good enough as well. The open-circuit voltage (VOC) even lower than that three-dimensional (3D) with a narrower band gap. In this work, we study energy transfer excitons between their multiple...