A5017139944- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Fiber-reinforced polymer composites
- Graphene research and applications
- 2D Materials and Applications
- Advanced Battery Technologies Research
- Chalcogenide Semiconductor Thin Films
- Carbon Nanotubes in Composites
- Solid-state spectroscopy and crystallography
- Electronic Packaging and Soldering Technologies
- Smart Materials for Construction
- Thermal properties of materials
- Semiconductor materials and devices
- Phase-change materials and chalcogenides
- Fullerene Chemistry and Applications
- Advanced Physical and Chemical Molecular Interactions
- Quantum Dots Synthesis And Properties
- ZnO doping and properties
- Advanced Memory and Neural Computing
Sungkyunkwan University
2020-2024
Pohang University of Science and Technology
2022-2024
Pohang Accelerator Laboratory
2022-2024
Transition metal dichalcogenides (TMDs) benefit electrical devices with spin-orbit coupling and valley- topology-related properties. However, TMD-based suffer from traps arising defect sites inside the channel gate oxide interface. Deactivating them requires independent treatments, because origins are dissimilar. This study introduces a single treatment to passivate defects in multilayer MoS2 FET. By applying back-gate bias, protons an H-TFSI droplet injected into MoS2, penetrating deeply...
The two different light-matter interactions between visible and infrared light are not switchable because control mechanisms have been elucidated so far, which restricts the effective spectral range in light-sensing devices. In this study, modulation of is demonstrated using metal-insulator transition MoS2. Nondegenerate MoS2 exhibits a photoconductive effect detecting light. contrast, degenerate responds only to mid-infrared (not visible) by displaying photoinduced heating via free carrier...
Understanding and controlling the oxidation of layered materials remain critical issues in final stages their practical application devices. Layered achieve a band gap by removing inversion symmetry. However, process becomes complex, these is not yet fully understood. As representative example, InSe has attracted considerable attention due to its high charge mobility Si-like gap. conflicting observations such as Se In have been reported, including contrasting assessments susceptibility. this...
Although anionic-redox-based layered oxide materials have attracted great attention as promising cathodes for Na-ion batteries because of their high practical capacities, they suffer from undesirable structural degradation, resulting in the poor electrochemical behavior. Moreover, occurrence stable anionic-redox reaction without use expensive elements such Li, Co, and Ni is considered one most important issues high-energy low-cost batteries. Herein, using first-principles calculation various...
Based on surface charge states, the thermodynamics of pentacene molecules exhibit intriguing structural transitions with various temperatures.On an SiO 2 surface, mean tilt angle decreases increasing temperature, whereas three different regimes form Au surface.To understand these contrasting temperature dependencies molecular orientation two surfaces, a model wherein has stable states is proposed in this study.Consequently, crystals undergoes phase transition at relatively low 350 K, thus...
Recently, carbon materials have been employed for the core of metal wires, contributing to their weight reduction. Low is required characteristic cables used in air, water, and ground transportations, order maximize fuel efficiency. Nowadays, hybridization C with creation C-based wires achieved through different approaches. A thin layer Ni usually applied electroless plating on surface fibers (CFs; diameter = 7 μm). Transport studies conducted a single strand Ni-coated CFs (Ni-CF) indicated...
Although anionic-redox-based layered oxide materials have attracted great attention as promising cathodes for Na-ion batteries because of their high practical capacities, they suffer from undesirable structural degradation, resulting in the poor electrochemical behavior. Moreover, occurrence stable anionic-redox reaction without use expensive elements such Li, Co, and Ni is considered one most important issues high-energy low-cost batteries. Herein, using first-principles calculation various...