A5100319995- 2D Materials and Applications
- Perovskite Materials and Applications
- Graphene research and applications
- Strong Light-Matter Interactions
- Topological Materials and Phenomena
- Advancements in Battery Materials
- Semiconductor Quantum Structures and Devices
- Advanced Battery Materials and Technologies
- MXene and MAX Phase Materials
- ZnO doping and properties
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Quantum Dots Synthesis And Properties
- Quantum optics and atomic interactions
- Thermal Radiation and Cooling Technologies
- Photonic and Optical Devices
- Advanced Photocatalysis Techniques
- Magnetic properties of thin films
- Nanowire Synthesis and Applications
- Social Media and Politics
- Physics of Superconductivity and Magnetism
- Advanced Thermoelectric Materials and Devices
- Mechanical and Optical Resonators
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
Collaborative Innovation Center of Chemistry for Energy Materials
2023-2025
Xiamen University
2023-2025
Wuhan University
2024-2025
Chengdu University of Technology
2023-2024
Okinawa Institute of Science and Technology Graduate University
2022-2024
Tan Kah Kee Innovation Laboratory
2023
Nanyang Technological University
2017-2022
Zhongyuan University of Technology
2022
Okinawa Prefecture
2022
Fujian University of Technology
2021
Polariton lasing is the coherent emission arising from a macroscopic polariton condensate first proposed in 1996. Over past two decades, has been demonstrated few inorganic and organic semiconductors both low room temperatures. materials significantly relies on sophisticated epitaxial growth of crystalline gain medium layers sandwiched by distributed Bragg reflectors which combating built-in strain mismatched thermal properties nontrivial. On other hand, active media usually suffer large...
Abstract Metallic tungsten disulfide (WS 2 ) monolayers have been demonstrated as promising electrocatalysts for hydrogen evolution reaction (HER) induced by the high intrinsic conductivity, however, key challenges to maximize catalytic activity are achieving metallic WS with concentration and increasing density of active sites. In this work, single-atom-V catalysts (V SACs) substitutions in 1T-WS (91% phase purity) fabricated significantly enhance HER performance via a one-step chemical...
Tunable PL emission of 2D halide perovskites occurs when pressure-induced anisotropic deformation modifies quantum confinement.
We report the direct observation of strong coupling between magnons and phonons in a two-dimensional antiferromagnetic semiconductor ${\mathrm{FePS}}_{3}$, via magneto-Raman spectroscopy at magnetic fields up to 30 Tesla. A Raman-active magnon $121\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}1}$ is identified through Zeeman splitting an applied field. At field-driven resonance with nearby phonon mode, hybridized magnon-phonon quasiparticle formed due two modes. develop microscopic model...
Two-dimensional (2D) organic-inorganic perovskite semiconductors with natural multiquantum well structures and confined 2D excitons are intriguing for the study of strong exciton-photon coupling, due to their large exciton binding energy oscillation strength. This coupling leads a formation half-light half-matter bosonic quasiparticle called exciton-polariton, consisting linear superposition state between photonic excitonic states. Here, we demonstrate room temperature in exfoliated...
The "Zeeman effect" offers unique opportunities for magnetic manipulation of the spin degree freedom (DOF). Recently, valley Zeeman splitting, referring to lifting degeneracy, has been demonstrated in two-dimensional transition metal dichalcogenides (TMDs) at liquid helium temperature. However, realize practical applications pseudospins, DOF must be controllable by a field room temperature, which remains significant challenge. Magnetic doping TMDs can enhance splitting; however, achieve this...
The fast-growing field of atomically thin semiconductors urges a new understanding two-dimensional excitons, which entirely determine their optical responses. Here, taking layered lead halide perovskites as an example unconventional semiconductors, by means versatile spectroscopy measurements, we resolve fine-structure splitting bright excitons up to ∼2 meV, is among the largest values in semiconducting systems. large attributed strong electron-hole exchange interaction perovskites, proven...
Magnetic van der Waals (vdW) materials possess versatile spin configurations stabilized in reduced dimensions. One magnetic order is the interlayer antiferromagnetism A-type vdW antiferromagnet, which may be effectively modified by field, stacking order, and thickness scaling. However, atomically revealing orientation antiferromagnet highly challenging, because most of material candidates exhibit an insulating ground state or instability ambient conditions. Here, we report layer-dependent...
Two-dimensional (2D) van der Waals heterostructures have attracted enormous research interests due to their emergent electrical and optical properties. The comprehensive understanding efficient control of interlayer couplings in such devices are crucial for realizing functionalities, as well improving performance. Here, we report a successful manipulation charge transfer between 2D materials by varying different stacking layers consisting graphene, hexagonal boron nitride, tungsten...
Abstract Phonons with chirality determine the optical helicity of inelastic light scattering processes due to their nonzero angular momentum. Here it is shown that 2D magnetic CrBr 3 hosts chiral phonons at Brillouin‐zone center. These are linear combinations doubly‐degenerate E g phonons, and phonon eigenmodes exhibit clockwise counterclockwise rotational vibrations corresponding momenta l = ± 1. Such completely switch polarization incident circularly polarized light. On other hand,...
Long valley polarization lifetime and tunable photoluminescence have been realized for interlayer excitons by layer engineering.
Abstract Distinct from conventional 2H‐MoS 2 , recently synthesized 3R‐MoS exhibits a noncentrosymmetric atomic structure of the trigonal “building blocks” and, thus, remarkable piezoelectric characteristics ultrathin flakes are predicated theoretically. This paper reveals, for first time, very high piezoelectricity in experimentally. Through applying mechanical stress to 48 nm flake, output power density 65 mW m ‐2 is obtained and at least one order larger than those corresponding monolayer...
Abstract Garnet‐type solid‐state electrolytes with exceptional stability are believed to promote the commercialization of all lithium metal batteries. However, extensive application garnet‐type is greatly impeded on account their low ionic conductivity. Herein, a high‐entropy fast lithium‐ion conductor Li 7 (La,Nd,Sr) 3 (Zr,Ta) 2 O 12 (LLNSZTO) high lattice distortion designed. It found that enhanced conductivity entropy electrolyte LLNSZTO achieved by introducing disorder in lattice, which...
Abstract 2D Td‐WTe 2 has attracted increasing attention due to its promising applications in spintronic, field‐effect chiral, and high‐efficiency thermoelectric devices. It is known that thermal conductivity plays a crucial role condensed matter devices, especially systems where phonons, electrons, magnons are highly confined coupled. This work reports the first experimental evidence of in‐plane anisotropic conductivities suspended samples different thicknesses, also demonstration such...
Graphene nanobubbles are of significant interest due to their ability trap mesoscopic volumes gas for various applications in nanoscale engineering. However, conventional protocols produce such bubbles relatively elaborate and require specialized equipment subject graphite samples high temperatures or pressures. Here, we demonstrate the formation graphene between layers highly oriented pyrolytic (HOPG) with electrolysis. Although this process can also lead gaseous surface on top substrate,...
Abstract Organic–inorganic hybrid perovskites have been considered as promising gain materials for lasing. Despite previous reports of lasing from nanocrystals, thin films and single crystals, the stability perovskite lasers has a challenge its practical applications. Herein, scalable strategy to prepare ultrastable perovskite@polymer fibers by employing facile emulsion electrospinning approach is demonstrated. During process, polymethyl methacrylate (PMMA) first solidifies into an outer...
Moiré superlattices of van der Waals structures offer a powerful platform for engineering band structure and quantum states. For instance, in magic-angle twisted bilayer graphene, ABC trilayer graphene have been shown to harbor correlated insulating superconducting states, while transition metal dichalcogenide (TMD) bilayers, excitons identified. Here we show that the effects superlattice on are general: In TMD exciton complexes can be trapped manner analogous ultracold bosonic or Fermionic...
Abstract Semiconducting piezoelectric α-In 2 Se 3 and 3R MoS have attracted tremendous attention due to their unique electronic properties. Artificial van der Waals (vdWs) heterostructures constructed with flakes shown promising applications in optoelectronics photocatalysis. Here, we present the first flexible /3R vdWs p-n heterojunction devices for photodetection from visible near infrared region. These exhibit an ultrahigh photoresponsivity of 2.9 × 10 A W −1 a substantial specific...
Bilayer WSe<sub>2</sub> nuclei were initially grown along the atomic steps of a sapphire substrate, resembling “graphoepitaxial mechanism” and gradually formed into overlapped 2H stacked bilayers.