A5007922418- Surface Chemistry and Catalysis
- Graphene research and applications
- Molecular Junctions and Nanostructures
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Machine Learning in Materials Science
- Catalytic Processes in Materials Science
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Surface and Thin Film Phenomena
- Carbon Nanotubes in Composites
- Quantum and electron transport phenomena
- Advanced Image Fusion Techniques
- Advanced Condensed Matter Physics
- Machine Learning and ELM
- Magnetic properties of thin films
- Catalysis and Hydrodesulfurization Studies
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
- Magnetic and transport properties of perovskites and related materials
- Topological Materials and Phenomena
- Remote-Sensing Image Classification
National University of Singapore
2021-2022
Shenzhen University
2021
Sun Yat-sen University
2018-2020
Guangdong University of Technology
2020
Atomic defects, being the most prevalent zero-dimensional topological are ubiquitous in a wide range of 2D transition-metal dichalcogenides (TMDs). They could be intrinsic, formed during initial sample growth, or created by postprocessing. Despite majority TMDs largely unaffected after losing chalcogen atoms outermost layer, spectrum properties, including optical, electrical, and chemical can significantly modulated, potentially invoke applicable functionalities utilized many applications....
The realization of long-range magnetic ordering in 2D systems can potentially revolutionize next-generation information technology. Here, the successful fabrication crystalline Cr3 Te4 monolayers with room temperature (RT) ferromagnetism is reported. Using molecular beam epitaxy, growth films monolayer thickness demonstrated at low substrate temperatures (≈100 °C), compatible Si complementary metal oxide semiconductor X-ray circular dichroism measurements reveal a Curie (Tc ) v344 K for an...
Surface-assisted polymerization of alkanes is a remarkable reaction for which the surface reconstruction Au(110) crucial. The (1×2)-Au(110) precovered with molecules can be completely transformed into (1×3)-Au(110) by introducing branched methylidene groups on both sides aliphatic chain (18, 19-dimethylidenehexatriacontane) or locally shifted under exposure to low-energy electrons (beam energy from 3.5 33.6 eV, alkane dotriacontane). Scanning tunneling microscopy investigations demonstrate...
Thickness-dependent magnetic behavior has previously been observed in chemical vapor deposition-grown chromium selenide. However, the low-dimensional structure nonlayered selenide, which plays a crucial role determining order, needs further study. Here, we report structure-dependent properties monolayer CrSe2 and Cr2Se3 grown by molecular beam epitaxy. In CrSe2, 1T-CrSe2 with lattice constant of 3.3 Å metallic character, coexisting 1T″ phase 2 × surface periodicity. Monolayer can be...
Exploring the structural transformation of nonhexagonal rings is fundamental importance for understanding thermal stability and revealing structure–property relationships. Here, we report on thermally induced from fused tetragon-hexagon (4–6) carbon to a pair pentagon (5–5) in graphene-like nanoribbons periodically embedded with tetragon octagon (4–8–4) rings. A distinct contrast among tetragon, pentagon, hexagon, provided by noncontact atomic force microscopy resolution. The activated bond...
Lowering the oxygen content in biofuels is of vital importance, since high level leads to low stability, heat value, and corruption engines. Here we report on thermally activated decarboxylation fatty acids, raw materials for biofuel production, an anisotropic Au(110) surface. Due one-dimensional (1D) geometrical constraint surface reconstruction, linear acid molecules (C30H60O2) are decarboxylated polymerized at their terminal ends mild temperatures, resulting formation oxygen-free...
The kagome lattice has attracted intense interest with the promise of realizing topological phases built from strongly interacting electrons. However, fabricating two-dimensional (2D) materials nontrivial topology is still a key challenge. Here, we report growth single-layer iron germanide nanoflakes by molecular beam epitaxy. Using scanning tunneling microscopy/spectroscopy, unravel real-space electronic localization flat bands. First-principles calculations demonstrate band inversion,...
Efficiently utilizing alkanes as the precursors to realize various chemical reaction processes is challenging due inertness of alkane C–H bonds. We report here selective activation and C–C coupling linear on Au-covered Ag(110) surfaces. Based density functional theory calculations, thin gold films with a thickness several atomic layers deposited resemble bulk Au(110) surface for bond activation. By using scanning tunneling microscopy (STM) we have observed that, instead unalloyed Au(110),...
On-surface synthesis has been widely used for the precise fabrication of surface-supported covalently bonded nanostructures. Here, we report on tuning on-surface graphene nanoribbons by noncovalent intermolecular interactions Au(111) surfaces. By introducing with companion molecules (dianhydride derivative), intramolecular cyclodehydrogenation nonplanar precursor (bianthryl derivative) are promoted at 200 °C, monomers interlinked gold atoms instead formation polyanthrylene. adjusting...
Recently, extended multi-attribute profiles (EMAPs) have attracted much attention due to its good performance while applied remote sensing images feature extraction and classification. Since the EMAPs connect multiple attribute features without considering pixel-based Hyperspectral Image (HSI) classification, homogeneous regions may become unsmooth noise be introduced. To tackle this problem, we propose weighted (WEMAPs) reduce smoothen based on mean filter (WMF). Then, construct multiscale...
Perchlorocoronene undergoes random dehalogenation at elevated temperatures, resulting in the formation of a disordered gold-coronene complex on Au(111) surfaces. The can be guided by introducing intermolecular constraint from accompanying molecules coexisting surface. Owing to electrostatic interactions, wires are intercalated between polyphenylene chains, which hinders transverse and results an improved tendency toward linear molecular wires.
Perpendicular magnetic anisotropy (PMA) of magnets is paramount for electrically controlled spintronics due to their intrinsic potentials higher memory density, scalability, thermal stability and endurance, surpassing an in-plane (IMA). Nickel film a long-lived fundamental element ferromagnet, yet its electrical transport behavior associated with magnetism has not been comprehensively studied, hindering corresponding spintronic applications exploiting nickel-based compounds. Here, we...