A5043571740- Topological Materials and Phenomena
- Plasmonic and Surface Plasmon Research
- Terahertz technology and applications
- Metamaterials and Metasurfaces Applications
- Piezoelectric Actuators and Control
- Photonic and Optical Devices
- Optical Coatings and Gratings
- 2D Materials and Applications
- Advanced MEMS and NEMS Technologies
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Analytical Chemistry and Sensors
- Graphene research and applications
- Advanced Surface Polishing Techniques
China Academy of Engineering Physics
2024
Abstract The discovery of twisted bilayer graphene with tunable superconductivity has diverted great focus at the world van der Waals heterostructures. Here we propose a paradigm for materials, where covalent bonding replaces interaction between layers. On example germanene-stanene bilayer, show that such systems demonstrate fascinating topological properties and manifest giant capacitance effects order C = 10 2 μ F as well dipole-like charge densities q 1 − × −4 cm −2 , showing promise 2D...
The piezoelectric thin-film traveling-wave micro-motor based on the microelectromechanical systems (MEMS) process has advantages of compact size, easy integration and batch production. However, still exits a serious shortcoming very small output torque. This paper proposes novel lead zirconate titanate (PZT) motor with stator teeth to improve Firstly, theoretical analysis finite element simulations were performed determine design parameters teeth. device preparation is completed by combining...
The terahertz (THz) frequency range is incredibly important as it covers electromagnetic emissions typical for biological and molecular processes. All molecules emit THz waves in a unique fingerprint pattern, although the intensity of such signals usually too weak to be detected. To address efficiency gap existing devices extremely create surfaces with perfect anti-reflection properties. Although metals are absolutely reflective, here we show both theoretically experimentally that by...
Metals, renowned for their high reflectivity, find extensive use in various technological applications, from mirrors to optical coatings radars, telescopes, and mobile communications. However, potential antireflective has remained largely untapped. In this study, we demonstrate that by applying an ultrathin metallic film onto oxide layer, can achieve a flawless surface with zero reflectivity. This phenomenon been successfully observed across metals, including Sn, Ag, Au, Pt, Bi, Nb,...
We have fabricated α-Sn/Ge quantum well heterostructures by sandwiching nano-films of α-Sn between Ge nanolayers. The samples were grown via e-beam deposition and characterized Raman spectroscopy, atomic force microscopy, temperature dependence electrical resistivity THz time-resolved spectroscopy. established the presence phase in polycrystalline layers together with a high electron mobility μ = 2500 ± 100 cm2 V-1 s-1. Here, behavior magnetic field is distinct from semiconducting films...
In article number 1900641, Yi Luo and co-workers successfully fabricate angstrom-scale nanogap electrodes (NGEs) with micrometer-scale pads. NGEs conducting, semiconducting insulating materials are fabricated low-cost direct-deposition technology which is totally lithography-free CMOS-compatible. The macroscopically measurable material-independent could bring scientists from various research areas to explore the molecular even atomic worlds.