Kyoungho Kim

ORCID: 0000-0003-2427-9934
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About
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Research Areas
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Advanced battery technologies research
  • Advanced Polymer Synthesis and Characterization
  • Supercapacitor Materials and Fabrication
  • Conducting polymers and applications
  • Advanced Sensor and Energy Harvesting Materials
  • Semiconductor materials and devices
  • Photonic and Optical Devices
  • Electrocatalysts for Energy Conversion
  • 3D IC and TSV technologies
  • Luminescence and Fluorescent Materials
  • Fuel Cells and Related Materials
  • Gas Sensing Nanomaterials and Sensors
  • Mass Spectrometry Techniques and Applications
  • Radio Frequency Integrated Circuit Design
  • Antenna Design and Optimization
  • Geological and Geochemical Analysis
  • Geological Formations and Processes Exploration
  • Advanced Battery Technologies Research
  • Polymer Surface Interaction Studies
  • Antenna Design and Analysis
  • Carbon Nanotubes in Composites
  • Ionic liquids properties and applications
  • Innovative Microfluidic and Catalytic Techniques Innovation

Dong-Eui University
2017-2024

Seoul National University
2024

Samsung (South Korea)
2017-2021

Pusan National University
2015-2021

Government of the Republic of Korea
2015-2017

Cheongju University
2016-2017

Ulsan National Institute of Science and Technology
2015-2016

Ulsan College
2016

Seoul National University of Science and Technology
2012

Chung-Ang University
2006

A high energy hybrid capacitor fabricated from highly porous graphitic carbon and novel electrode material Ni<sub>2</sub>P<sub>2</sub>O<sub>7</sub>delivers a maximum density of 65 W h kg<sup>−1</sup>at power 800 kg<sup>−1</sup>, good rate capability cycling stability in an aqueous Na-ion based electrolyte.

10.1039/c5ta04737d article EN Journal of Materials Chemistry A 2015-01-01

Abstract The authors report the fabrication of highly sensitive, rapidly responding flexible force sensors using ZnO/ZnMgO coaxial nanotubes grown on graphene layers and their applications in sleep apnea monitoring. Flexible are fabricated by forming Schottky contacts to nanotube array, followed mechanical release entire structure from host substrate. electrical characteristics ZnO nanotube‐based thoroughly investigated compared. Importantly, sensor applications, results significantly higher...

10.1002/adhm.202304140 article EN Advanced Healthcare Materials 2024-03-06

Cheap, familiar saltwater (NaCl solution) was utilized to build low-cost, safe rechargeable batteries for large-scale electrical energy storage applications.

10.1039/c6ta01274d article EN Journal of Materials Chemistry A 2016-01-01

With growing demand for low-power mobile applications, such as wearable devices, smart phones and tablet PCs, DRAM has been identified a mandatory requirement system designs. The recently developed LPDDR4 [1] is still power efficient solution because of its architectural approaches low-voltage-swing terminated logic (LVSTL). However, enhanced power-efficiency beyond increasing applications. In this work, 5.0Gbp/s/pin 8Gb LPDDR4X memory with power-isolated (PI-LVSTL) split-die architecture...

10.1109/isscc.2017.7870425 article EN 2022 IEEE International Solid- State Circuits Conference (ISSCC) 2017-02-01

We report on the chromatographic separation and characterization of living chains in polystyrene prepared by reversible addition–fragmentation chain-transfer (RAFT) polymerization. To achieve full resolution different dead chains, a with distinctive end groups was RAFT polymerization using specially designed agent (R–S–(C═S)–S–Z) polar hydroxyl at both R Z thermal initiator without group, 2,2′-azobis(isobutyronitrile). The structures separated derived from were characterized 1H nuclear...

10.1021/acs.macromol.9b01331 article EN Macromolecules 2019-09-26

The demand for mobile DRAM has increased, with a requirement high density, data rates, and low-power consumption to support applications such as 5G communication, multiple cameras, automotive. Thus, density increased from 2Gb [1] 16Gb [2] in LPDDR4 LPDDR4X, but the maximum LPDDR5 is only 12Gb [3] due limited package size specification: 496-ball FBGA. In this work, mosaic architecture introduced increase 16Gb, even size. Additionally, I/O performance improved by shortening length top metal,...

10.1109/isscc42613.2021.9366050 article EN 2022 IEEE International Solid- State Circuits Conference (ISSCC) 2021-02-13

Poly((furfuryl methacrylate)-<italic>co</italic>-(2-(dimethylamino)ethyl methacrylate)) was synthesized and quaternized. Single-walled carbon nanotubes dispersed well in polar solvents using the polymeric dispersant.

10.1039/c5ra10350a article EN RSC Advances 2015-01-01

Our MPC-based hybrid Li–air battery exhibits a good round-trip efficiency (MPC: 70.0% <italic>vs.</italic> Vulcan: 58.9%) and cycling performance over 20 cycles.

10.1039/c7nj00863e article EN New Journal of Chemistry 2017-01-01

A polypyrrole/carbon nanocomposite-based battery showed charge/discharge reversibility over 20 cycles and a round-trip efficiency as high 92.9%.

10.1039/c6nj03402k article EN New Journal of Chemistry 2016-12-26

This paper presents a dual-loop 2-step ZQ calibration scheme with 20nm DRAM process to support dedicated supply voltage (VDD, VDDQ). The proposed maintains target value of on-die termination (ODT) in DQ/CA regardless the supply-voltage variations which are caused by dynamic frequency switching (DVFS) and alleviates time is increased insertion additional CA calibration. offset comparator averaged out fraction-referred input switching-then-averaging (FISA). And code-referred periodic update...

10.1109/asscc.2017.8240239 article EN 2022 IEEE Asian Solid-State Circuits Conference (A-SSCC) 2017-11-01

Abstract not Available.

10.1149/ma2006-02/3/135 article EN Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) 2006-06-30

Three-dimensional integrated packaging has been generally acknowledged as the next generation semiconductor technology with advantages of small form factor, high-performance, low power consumption, and high density integration [1,2]. Through silicon via (TSV) stacked bonding are core technologies to perform vertical interconnect for 3D packaging. One most important topics in is alignment accuracy. It reported that diameters will continue shrink over couple years [3]. Shrinking have a direct...

10.1109/3dic.2012.6263000 article EN 2012-01-01

Abstract Different types of polymer chains generated during the nitroxide‐mediated polymerization styrene are separated for first time, and their molecular weight distribution (MWD) is investigated. Living dead monitored reaction; specifically, two living derived from initiation alkoxyamine (RT) self‐initiation present in as‐prepared polystyrene (PS). To distinguish between each species, different numbers hydroxyl groups introduced onto T R (one groups, respectively). Each resolved...

10.1002/marc.202000624 article EN Macromolecular Rapid Communications 2021-02-04

Abstract A glasses‐shaped triblock copolymer of poly(ε‐caprolactone)‐ b ‐polystyrene‐ ‐poly(ε‐caprolactone) (PCL‐ ‐PS‐ ‐PCL) is prepared by combining atom transfer radical polymerization (ATRP) and ring opening (ROP). Polystyrene (PS) star polymers are via ATRP using a tetra‐functional initiator, followed azidation to yield azide end‐functionalized polymers. An alkyne‐functionalized coupling agent, 2,2‐bis[(2‐propyn‐1‐yloxy)methyl]‐1‐propanol employed produce hydroxy 8‐shaped PS...

10.1002/pol.20210717 article EN Journal of Polymer Science 2021-11-29
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