A5043759424- Spectroscopy and Quantum Chemical Studies
- Force Microscopy Techniques and Applications
- Nanopore and Nanochannel Transport Studies
- Molecular Junctions and Nanostructures
- Methane Hydrates and Related Phenomena
- Underwater Vehicles and Communication Systems
- Electrostatics and Colloid Interactions
- Particle accelerators and beam dynamics
- Surface Chemistry and Catalysis
- Surface and Thin Film Phenomena
- High-pressure geophysics and materials
- Graphene research and applications
- AI and HR Technologies
- Quantum and electron transport phenomena
- Advanced Chemical Physics Studies
- Electrochemical Analysis and Applications
Peking University
2018-2024
The nature of hydrated proton on solid surfaces is vital importance in electrochemistry, channels, and hydrogen fuel cells but remains unclear because the lack atomic-scale characterization. We directly visualized Eigen- Zundel-type protons within bonding water network Au(111) Pt(111) surfaces, using cryogenic qPlus-based atomic force microscopy under ultrahigh vacuum. found that Eigen cations self-assembled into monolayer structures with local order, Zundel formed long-range ordered...
Abstract Scanning probe microscopy has been extensively applied to interfacial water in many interdisciplinary fields but the disturbance of probes on hydrogen-bonding structure remained an intractable problem. Here, we report submolecular-resolution imaging clusters a NaCl(001) surface within nearly noninvasive region by qPlus-based noncontact atomic force microscopy. Comparison with theoretical simulations reveals that key lies probing weak high-order electrostatic between quadrupole-like...
Low-dimensional water transport can be drastically enhanced under atomic-scale confinement. However, its microscopic origin is still debate. In this work, we directly imaged the atomic structure and of two-dimensional islands on graphene hexagonal boron nitride surfaces using qPlus-based force microscopy. The lattice island was incommensurate with surface but commensurate owing to different electrostatics. area-normalized static friction diminished as area increased by a power ~-0.58,...
Scanning probe microscopy (SPM) has been extensively applied to interfacial water in many interdisciplinary fields but the disturbance of probes on hydrogen-bonding structure remained an intractable problem. Here we report submolecular-resolution imaging clusters a NaCl(001) surface within nearly non-invasive region by qPlus-based noncontact atomic force microscopy. Comparison with theoretical simulations reveals that key lies probing weak high-order electrostatic between quadrupole-like...
We design and develop a scanning probe microscope (SPM) system based on the qPlus sensor for atomic-scale optical experiments. The operates under ultrahigh vacuum low temperature (6.2 K). In order to obtain high efficiency of light excitation collection, two front lenses with numerical apertures (N.A. = 0.38) driven by compact nano-positioners are directly integrated scanner head without degrading its mechanical thermal stability. electric noise floor background current is 5 fA/Hz1/2,...
There are multiple factors influencing the income level of public, such as education, gender, race. To investigate this issue, an adult census dataset was analyzed. The data collected by United States Census Bureau [1]. research primarily focuses on influence years age, race, and sex public income. result from statistical analysis shows strong relationships between sex, education. Age affects income; senior people tend to get higher than junior people. Sex men women. Race also white Asian...