A5005281382- 2D Materials and Applications
- MXene and MAX Phase Materials
- Graphene research and applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Electronic and Structural Properties of Oxides
- Inorganic Chemistry and Materials
- Electrospun Nanofibers in Biomedical Applications
- Innovative concrete reinforcement materials
- Boron and Carbon Nanomaterials Research
- Topological Materials and Phenomena
- Perovskite Materials and Applications
- Advanced Data Storage Technologies
- Engineering Applied Research
- Tissue Engineering and Regenerative Medicine
- Magnetic and transport properties of perovskites and related materials
- Cloud Computing and Resource Management
- Manufacturing Process and Optimization
- Parallel Computing and Optimization Techniques
- Process Optimization and Integration
- Advanced Control Systems Optimization
- Advanced Control Systems Design
- Quantum and electron transport phenomena
- ECG Monitoring and Analysis
- Heusler alloys: electronic and magnetic properties
Cornell University
2021-2024
Chonnam National University
2021-2023
Columbia University
2018-2022
University of Chicago
2022
University of Washington
2022
Hanyang University
2017-2019
Hyundai Motors (South Korea)
2019
Hyundai Pharm (South Korea)
2018
Sungkyunkwan University
2014-2016
Yonsei University
2014-2015
The recent discovery of two-dimensional (2D) magnets offers unique opportunities for the experimental exploration low-dimensional magnetism4 and magnetic proximity effects, development novel magnetoelectric, magnetooptic spintronic devices. These advancements call 2D materials with diverse structures as well effective probes their symmetries, which is key to understanding intralayer order interlayer coupling. Here we apply second harmonic generation (SHG), a technique acutely sensitive...
The recent discovery of magnetism within the family exfoliatable van der Waals (vdW) compounds has attracted considerable interest in these materials for both fundamental research and technological applications. However, current vdW magnets are limited by their extreme sensitivity to air, low ordering temperatures, poor charge transport properties. Here magnetic electronic properties CrSBr reported, an air-stable antiferromagnetic semiconductor that readily cleaves perpendicular stacking...
The design and development of metal-cluster-based heterogeneous catalysts with high activity, selectivity, stability under solution-phase reaction conditions will enable their applications as recyclable in large-scale fine chemicals production. To achieve these required catalytic properties, a catalyst must contain specific catalytically active species concentration, the be stabilized on solid support conditions. These requirements pose great challenge for catalysis research to processes....
A switchable water-adhesive, superhydrophobic nanowire surface is developed for the formation of functional stem cell spheroids. The sizes hADSC spheroids are readily controllable on surface. Our increases cell-cell and cell-matrix interaction, which improves viability paracrine secretion Accordingly, produced exhibit significantly enhanced angiogenic efficacy.
Structural complexity is of fundamental interest in materials science because it often results unique physical properties and functions. Founded on this idea, the field solid state chemistry has a long history continues to be highly active, with new compounds discovered daily. By contrast, area two-dimensional (2D) young, but its expansion, although rapid, limited by severe lack structural diversity complexity. Here, we report novel 2D semiconductor hierarchical structure composed covalently...
Superatomic crystals are composed of discrete modular clusters that emulate the role atoms in traditional atomic solids$^{1-4}$. Owing to their unique hierarchical structures, these materials promising candidates host exotic phenomena, such as superconductivity and magnetism can be revealed through doping$^{5-10}$. Low-dimensional superatomic hold great promise electronic components$^{11,12}$, enabling properties applied nanocircuits, but impact doping compounds remains unexplored. Here we...
Abstract Enhanced endothelialization of tissue‐engineered blood vessels is essential for vascular regeneration and function engineered vessels. In this study, mussel‐inspired surface chemistry polydopamine (pDA) coatings are applied to functionalize decellularized vein matrix (DVM) with extracellular matrix‐derived cell adhesion peptides (RGD YIGSR). DVMs pDA‐peptides enhance focal adhesion, metabolic activity, endothelial differentiation human progenitor cells (EPCs) derived from cord...
Twisted bilayer transition metal dichalcogenide semiconductors, which support flat Chern bands with enhanced interaction effects, realize a platform for fractional insulators and quantum spin Hall (FQSH) insulators. A recent experiment has reported the emergence of FQSH insulator protected by spin-Sz conservation at moir\'e lattice filling factor {\nu}=3 in 2.1-degree twisted MoTe2. Theoretical studies have proposed both time-reversal symmetric asymmetric ground states as possible candidates...
We demonstrate the integration of a thin BaTiO
The effects of aggregate and cement type on the properties steam-cured concrete were explored. Ordinary Portland (OPC) high early strength (HESC) used as binders, recycled natural aggregates inert mineral filler in concrete. developed concretes exhibited adequate levels compressive after steam curing. Depending coarse fine utilised, incorporating OPC 42–72% their design 1 d; range was 52–83% for made with HESC. At all ages, HESC had about 10% greater than concretes. Abrasion skid resistance...
Surfaces play a key role in determining material properties, and their importance is further magnified the two-dimensional (2D) limit. Though monolayers are entirely composed of surfaces, there no chemical approach to covalently address them without breaking intralayer bond. Here, we describe 2D semiconductor that offers two unique features among materials: structural hierarchy within monolayer surface reactive sites enable functionalization. The single layer strongly interconnected Re6Se8...
Structural phase transitions run in families of crystalline solids. Perovskites, for example, feature a remarkable number structural transformations that produce wealth exotic behaviors, including ferroelectricity, magnetoresistance, metal-insulator and superconductivity. In superatomic crystals other such materials assembled from programmable building blocks, offer pathways to new properties are both tunable switchable. Here we describe [Co6Te8(PEt3)6][C70]2, novel crystal with two separate...
The recent discovery of magnetism within the family exfoliatable van der Waals (vdW) compounds has attracted considerable interest in these materials for both fundamental research and technological applications. However current vdW magnets are limited by their extreme sensitivity to air, low ordering temperatures, poor charge transport properties. Here we report magnetic electronic properties CrSBr, an air-stable antiferromagnetic semiconductor that readily cleaves perpendicular stacking...
Abstract Two‐dimensional (2D) materials are commonly prepared by exfoliating bulk layered van der Waals crystals. The creation of synthetic 2D from bottom‐up methods is an important challenge as their structural flexibility will enable chemists to tune the properties. A material was assembled using C 60 a polymerizable monomer. building blocks first into solid molecular cluster structure director. resulting hierarchical crystal used template polymerize its monolayers, which can be exfoliated...
Vitamins are non‐toxic compounds that perform a variety of biological functions and also available in large quantity. Other than the usage as food supplements, few attempts have been made to use them functional materials. In this study, we report vitamin B6, pyridoxal 5′‐phosphate (PLP), is multi‐functional molecule for oxide surface chemistry. PLP‐immobilized surfaces exhibit superhydrophilicity even hemophilicity, enhancing proliferation, migration, differentiation mammalian cells. Unlike...
Abstract Two‐dimensional (2D) van der Waals materials with in‐plane anisotropy are of great interest for directional transport charge and energy, as exemplified by recent studies on black phosphorus α‐phase molybdenum trioxide (α‐MO 3 ). Here, a layered semiconductor built upon the superatomic units Mo 6 S Br is reported. This material possesses robust 2D characteristics direct gap 1.64 eV, determined scanning tunneling spectroscopy first‐principles calculations. Polarization‐dependent Raman...
The coupling of phonons to electrons and other plays a defining role in material properties, such as charge energy transport, light emission, superconductivity. In atomic solids, are delocalized over the 3D lattice, contrast molecular solids where localized vibrations dominate. Here, hierarchical semiconductor that expands phonon space by combining 0D modes with 2D is described. This consists superatomic building blocks (Re6 Se8 ) covalently linked into sheets stacked layered van der Waals...