Search Results - "Chung, Hee‐Suk"
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High-Performance One-Body Core/Shell Nanowire Supercapacitor Enabled by Conformal Growth of Capacitive 2D WS2 Layers
Published in ACS nano (27-12-2016)“…Two-dimensional (2D) transition-metal dichalcogenides (TMDs) have emerged as promising capacitive materials for supercapacitor devices owing to their…”
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2D MoS2-Based Threshold Switching Memristor for Artificial Neuron
Published in IEEE electron device letters (01-06-2020)“…In this work, we use a two-terminal 2D MoS 2 -based memristive device to emulate an artificial neuron. The Au/MoS 2 /Ag device exhibits volatile resistance…”
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Artificial Neuron using Vertical MoS2/Graphene Threshold Switching Memristors
Published in Scientific reports (10-01-2019)“…With the ever-increasing demand for low power electronics, neuromorphic computing has garnered huge interest in recent times. Implementing neuromorphic…”
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Electronic synapses with near-linear weight update using MoS2/graphene memristors
Published in Applied physics letters (02-09-2019)“…Emulating the human brain's circuitry composed of neurons and synapses is an emerging area of research in mitigating the “von Neumann bottleneck” in present…”
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5
Crystal Phase Transition Creates a Highly Active and Stable RuCX Nanosurface for Hydrogen Evolution Reaction in Alkaline Media
Published in Advanced materials (Weinheim) (01-12-2021)“…Although metastable crystal structures have received much attention owing to their utilization in various fields, their phase‐transition to a thermodynamic…”
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Thermodynamically Stable Synthesis of Large‐Scale and Highly Crystalline Transition Metal Dichalcogenide Monolayers and their Unipolar n–n Heterojunction Devices
Published in Advanced materials (Weinheim) (01-09-2017)“…Transition metal dichalcogenide (TMDC) monolayers are considered to be potential materials for atomically thin electronics due to their unique electronic and…”
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Atomic‐Scale Observation of LiFePO4 and LiCoO2 Dissolution Behavior in Aqueous Solutions
Published in Advanced functional materials (07-11-2018)“…Understanding the atomic structure variation at the surface of electrode materials in contact with an electrolyte is an essential step toward achieving better…”
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8
Electrical Wind Force-Driven and Dislocation-Templated Amorphization in Phase-Change Nanowires
Published in Science (American Association for the Advancement of Science) (22-06-2012)“…Phase-change materials undergo rapid and reversible crystalline-to-amorphous structural transformation and are being used for nonvolatile memory devices…”
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Noble metal-coated MoS2 nanofilms with vertically-aligned 2D layers for visible light-driven photocatalytic degradation of emerging water contaminants
Published in Scientific reports (02-11-2017)“…Two-dimensional molybdenum disulfide (2D MoS 2 ) presents extraordinary optical, electrical, and chemical properties which are highly tunable by engineering…”
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CdS/Zr:Fe2O3 Nanorod Arrays with Al2O3 Passivation Layer for Photoelectrochemical Solar Hydrogen Generation
Published in ChemSusChem (09-05-2017)“…CdS‐sensitized 1 D Zr:Fe2O3 nanorod arrays were synthesized on fluorine‐doped tin oxide substrates by a two‐step hydrothermal method. The photoelectrochemical…”
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Probing dopant segregation in distinct cation sites at perovskite oxide polycrystal interfaces
Published in Nature communications (10-11-2017)“…Although theoretical studies and experimental investigations have demonstrated the presence of space-charge-induced dopant segregation, most work has been…”
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Centimeter-scale Green Integration of Layer-by-Layer 2D TMD vdW Heterostructures on Arbitrary Substrates by Water-Assisted Layer Transfer
Published in Scientific reports (07-02-2019)“…Two-dimensional (2D) transition metal dichalcogenide (2D TMD) layers present an unusually ideal combination of excellent opto-electrical properties and…”
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Strain‐Driven and Layer‐Number‐Dependent Crossover of Growth Mode in van der Waals Heterostructures: 2D/2D Layer‐By‐Layer Horizontal Epitaxy to 2D/3D Vertical Reorientation
Published in Advanced materials interfaces (23-07-2018)“…Heterogeneously integrated 2D van der Waals (vdW) solids composed of compositionally distinct atomic layers are envisioned to exhibit exotic electrical/optical…”
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14
Defect Passivation of 2D Semiconductors by Fixating Chemisorbed Oxygen Molecules via h‐BN Encapsulations
Published in Advanced science (01-06-2024)“…Hexagonal boron nitride (h‐BN) is a key ingredient for various 2D van der Waals heterostructure devices, but the exact role of h‐BN encapsulation in relation…”
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15
In situ observation of nanoparticle formation in nickel-based mechanical alloyed powders
Published in Journal of materials science (01-12-2018)“…Nickel alloy powders with additions of Gd 2 O 3 and Ti were mechanically alloyed (MA) using a high-energy ball mill. The formation behaviors of nanoparticles…”
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Boosting Photocatalytic Performance of Inactive Rutile TiO2 Nanorods under Solar Light Irradiation: Synergistic Effect of Acid Treatment and Metal Oxide Co-catalysts
Published in ACS applied materials & interfaces (19-07-2017)“…In the present work, we accomplish the boosting of photocatalytic performance by the synergistic effect of acid treatment and transition metal oxide…”
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In situ synthesis of hierarchically-assembled three-dimensional ZnS nanostructures and 3D printed visualization
Published in Scientific reports (10-10-2022)“…Nanomaterials have gained enormous interest in improving the performance of energy harvest systems, biomedical devices, and high-strength composites. Many…”
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Vertically Aligned Titanate Nanotubes Hydrothermally Synthesized from Anodized TiO2 Nanotube Arrays: An Efficient Adsorbent for the Repeatable Recovery of Sr Ions
Published in ACS sustainable chemistry & engineering (03-12-2018)“…Vertically aligned titanate nanotubes (VA-TNTs) are prepared for the repeated and effective recovery of Sr ions. Two-electrode electrochemical anodization with…”
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PT-BI Co-Deposit Shell on AU Nanoparticle Core: High Performance and Long Durability for Formic Acid Oxidation
Published in Catalysts (01-09-2021)“…This work presents the catalysts of Pt-Bi shells on Au nanoparticle cores and Pt overlayers on the Pt-Bi shells toward formic acid oxidation (FAO). Pt and Bi…”
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Humidity‐Driven High‐Performance Electrothermal Actuation of Vertically Stacked 2D PtTe2 Layers/Cellulose Nanofibers
Published in Advanced intelligent systems (01-03-2023)“…A new type of soft actuators based on a vertical stack of nanoporous 2,2,6,6‐tetramethylpiperidine‐1‐oxyl‐oxidized cellulose nanofibers (TOCNs) and atomically…”
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