A5074366934- Graphene research and applications
- 2D Materials and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- MXene and MAX Phase Materials
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Mechanical and Optical Resonators
- Quantum and electron transport phenomena
- Force Microscopy Techniques and Applications
- Crystallography and molecular interactions
- Boron and Carbon Nanomaterials Research
- Diamond and Carbon-based Materials Research
- Thermal properties of materials
- Carbon Nanotubes in Composites
- Topological Materials and Phenomena
- Supercapacitor Materials and Fabrication
- Adhesion, Friction, and Surface Interactions
- Advanced battery technologies research
- Advanced Condensed Matter Physics
- Thermal Expansion and Ionic Conductivity
- Advanced Fiber Laser Technologies
- Quantum Electrodynamics and Casimir Effect
- Molecular Junctions and Nanostructures
- Metal-Organic Frameworks: Synthesis and Applications
Nanjing University of Aeronautics and Astronautics
2016-2025
Jilin University
2020-2024
Beihang University
2023
Wuhan University of Technology
2023
Shandong University of Science and Technology
2021
Ocean University of China
2009-2021
Zero to Three
2021
Nanjing Library
2018-2020
Beijing University of Posts and Telecommunications
2020
Fritz Haber Institute of the Max Planck Society
2016
Tuning band energies of semiconductors through strain engineering can significantly enhance their electronic, photonic, and spintronic performances. Although low-dimensional nanostructures are relatively flexible, the reported tunability gap is within 100 meV per 1% strain. It also challenging to control strains in atomically thin precisely monitor optical phonon properties simultaneously. Here, we developed an electromechanical device that apply biaxial compressive trilayer MoS2 supported...
Developments in semiconductor technology are propelling the dimensions of devices down to 10 nm, but facing great challenges manufacture at sub-10 nm scale. Nanotechnology can fabricate nanoribbons from two-dimensional atomic crystals, such as graphene, with widths below threshold, their geometries and properties have been hard control this Here we find that robust ultrafine molybdenum-sulfide ribbons a uniform width 0.35 be widely formed between holes created MoS2 sheet under electron...
We report a two-dimensional tetragonal Titanium Carbide (TiC) monolayer sheet with distinguished structure and properties based on comprehensive first-principles calculations. The TiC exhibits novel zigzag-shaped buckling all atoms being quasiplanar tetracoordinate, as favored by strong in-plane C2p-Ti3d bonding synergetic out-of-plane electronic delocalization. This unique endows the high kinetic stability anisotropic mechanical properties. Moreover, displays orientation-dependent derived...
Boron, as a unique element nearest to carbon in the periodic table, has been predicted form many distinctive two‐dimensional (2D) structures that significantly differ from other well‐studied 2D materials, owning its exceptional ability strong covalent two‐center‐two‐electron bonds well stable electron‐deficient multi‐center‐two‐electron bonds. Until recently, successful syntheses of atomically thin crystalline boron sheets (i.e., borophenes) provoked growing passion crystals. In this feature...
Polymer nanocomposites with nanoparticles dispersed in polymer matrices have attracted extensive attention due to their significantly improved overall performance, which the nanoparticle-polymer interface plays a key role. Understanding structures and properties of interfacial region, however, remains major challenge for nanocomposites. Here, we directly observe presence two layers around nanoparticle polar polymers, i.e., an inner bound layer (~10 nm thick) aligned dipoles outer (over 100...
Reactions of lanthanide nitrate, 1,3,5-benzenetrisbenzoic acid (H3BTB) and [RMI]Br ionic liquids (RMI = 1-alkyl-3-methylimidazolium; R ethyl, propyl, butyl, amyl, or hexyl), gave rise to two novel metal-organic frameworks (Ln-MOFs) [Ln(BTB)H2O], where Ln Eu , Tb . In addition helping solubilise the starting materials under reaction conditions there is evidence that itself can play a structure directing role intimately involved in template ordering even though neither [RMI](+) cation nor...
Hexagonal boron nitride (h‐BN), a wide band gap monolayer crystal with structure similar to graphene, is optically transparent exceptionally high thermal and chemical stability, should be ideal serve as an atomically thin coating. However, limited by the challenges in fabricating h‐BN of quality large area, wetting performance has seldom been studied. Here, it shown that water contact angle freshly grown film nearly independent underlying materials well layer number, but increases gradually...
A hexagonal boron nitride monolayer with aligned orientations is grown on reusable semiconducting germanium. The number of primary the h-BN domains depends symmetry underlying crystal face, and Ge (110) gives rise to only two opposite orientations. structures electrical properties grain boundaries between are also systematically analyzed. As a service our authors readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may be re-organized for...
Two dimensional crystals, befitting nanoscale electronics and spintronics, can benefit strain-tunable applications due to their ultrathin flexible nature. We show by first-principles calculations that tensile strain enhance the exchange splitting of spins in NbSe2 NbS2 single layers. Particularly, a switch from antiferro- ferro-magnetism is realized engineering. Under strains lower than 4%, an antiferromagnetic state with opposite aligned on next-nearest-neighbor rows Nb atoms favored energy...
Targeting high-energy-density batteries, lithium-rich manganese oxide (LMO), with its merits of high working voltage (∼4.8 V vs Li/Li+) and capacity (∼250 mAh g–1), was considered a promising cathode for 500 Wh kg–1 project. However, the practical application LMO hindered by parasitic reaction between electrolyte electrode, such as dissolution surface lattice oxygen. Herein, N-methyl-N-trimethylsilyl trifluoroacetamide (MSTFA) is introduced an additive in common carbonate ester to modify...
To develop poly(amino acid)s with temperature-sensitivity, a series of polyaspartamides isopropylamide and hydroxyalkylamide pendant groups were synthesized by successive aminolysis reaction polysuccinimide. The structure the resulting polymers was examined 1H NMR FT-IR. polyaspartamide derivatives self-assembled into nanoparticles in water showed sharp temperature-responsive phase transition behaviour. temperature (Tp) could be modulated hydrophilic–hydrophobic balance copolymer controlled...
Ga-based two-dimensional transition-metal trichalcogenides with tunable ferromagnetic semiconducting properties are explored by first-principles calculations.
Abstract Graphene with periodically patterned antidots has attracted intense research attention as it represents a facile route to open bandgap for graphene electronics. However, not all antidot lattices (GALs) can and guiding rule is missing. Here, through systematic first‐principles calculations, found that bandgaps in triangular GALs are surprisingly well defined by chirality vector R = n 1 + m 2 connecting two neighboring antidots, where the basis vectors of graphene. The opens ( ‐ )mod3...
As the Poisson effect formulates, lateral strains in a material can be caused by uniaxial stress perpendicular direction, but no net strain should induced thin homogeneous elastic plate subjected to pure bending load. Here, we demonstrated ab initio simulations that significant exotic two-dimensional crystals, which components of chemical bonds respond curvature directly. The ratio, defined as ratio curvature, is function depending on constitution, bonding structure, and atomic interaction...
The inertness of graphene toward reaction with ambient molecules is essential for realizing durable devices stable performance. Many device applications require to contact substrates, but whose impact on the chemical property has been largely overlooked. Here, we combine comprehensive first-principles analyses experiments show that oxidation highly sensitive substrates. Graphene remains inert SiO2 and hexagonal boron nitride becomes increasingly weak against metal substrates because enhanced...