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Ko, Hyunhyub (고현협)

Department
School of Energy and Chemical Engineering(에너지화학공학과)
Website
http://hko.unist.ac.kr/
Lab
Functional Nanomaterials & Devices Lab. (기능성 나노소재 및 소자 연구실)
Research Keywords
나노소재, 기능성 나노소재, 플렉서블 전자소자, 전자피부, 웨어러블 센서, Polymers, Nanomaterials, Flexible sensors, Wearable devices, Bio-inspired materials, Smart materials
Research Interests
Our research interests are centered on the development of functional nanomaterials and devices based on the assembly of organic/inorganic materials into micro- and nanostructures. We are interested in exploiting the fabrication strategies combining “bottom-up” assembly and “top-down” lithography to hierarchically organize organic and inorganic nanomaterials on multiple length scales. For the solution-based “bottom-up” assembly of nanomaterials (carbon nanotubes, graphenes, nanowires, nanoparticles, etc.), we engineer the surface properties of nanomaterials and substrates for the controlled molecular interactions between nanomaterials, solvents, and substrates. For the “top-down” lithography, we exploit various unconventional lithography methods (soft-lithography, colloids assembly, polymer self-assembly, etc.) in addition to the conventional photolithography and e-beam lithography. By controlling the surface chemistry of nanomaterials and physical confinement of lithographic templates, we understand the principles of nanomaterials assembly and find exact strategies for the specific design of hierarchical structures. We also seek to understand the fundamental physical properties of individual nanomaterials and the collective behavior of the organized micro- and nanostructures, which is central to the rational development of functional devices. Ultimately, we intend to use these micro- and nanostructures in electronics, optics, sensors, and biomedical devices.
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Issue DateTitleAuthor(s)TypeViewAltmetrics
2023-03Low-Voltage Stretchable Electroluminescent Loudspeakers with Synchronous Sound and Light GenerationLee, Hyejin; Kang, Dong-hee; Cho, Seungse, et alARTICLE57 Low-Voltage Stretchable Electroluminescent Loudspeakers with Synchronous Sound and Light Generation
2023-01Stretchable skin hydration sensor based on hygroscopic and ion conductive polymer compositesNa, Sangyun; Yeom, Jeonghee; Chang, Yoojin, et alARTICLE56 Stretchable skin hydration sensor based on hygroscopic and ion conductive polymer composites
2023-01Femtosecond-Resolved Imaging of a Single-Particle Phase Transition in Energy-Filtered Ultrafast Electron MicroscopyKim, Ye-Jin; Nho, Hak-Won; Ji, Shaozheng, et alARTICLE145 Femtosecond-Resolved Imaging of a Single-Particle Phase Transition in Energy-Filtered Ultrafast Electron Microscopy
2023-01Tape-Free, Digital Wearable Band for Exercise Sweat Rate MonitoringDautta, Manik; Ayala-Cardona, Luis Fernando; Davis, Noelle, et alARTICLE54 Tape-Free, Digital Wearable Band for Exercise Sweat Rate Monitoring
2022-11Adaptive IR- and Water-Gating Textiles Based on Shape Memory FibersChoe, Ayoung; Kwon, Yeju; Shin, Young-Eun, et alARTICLE96 Adaptive IR- and Water-Gating Textiles Based on Shape Memory Fibers
2022-09Ultra-stretchable yet tough, healable, and biodegradable triboelectric devices with microstructured and ionically crosslinked biogelGhosh, Sujoy Kumar; Kim, Minsoo P.; Na, Sangyun, et alARTICLE422 Ultra-stretchable yet tough, healable, and biodegradable triboelectric devices with microstructured and ionically crosslinked biogel
2022-07Self-healable triboelectric nanogenerators based on ionic poly(hindered urea) network materials cross-linked with fluorinated block copolymersNellepalli, Pothanagandhi; Patel, Twinkal; Kim, Minsoo P., et alARTICLE166 Self-healable triboelectric nanogenerators based on ionic poly(hindered urea) network materials cross-linked with fluorinated block copolymers
2022-07Ferroelectricity-Coupled 2D-MXene-Based Hierarchically Designed High-Performance Stretchable Triboelectric NanogeneratorGhosh, Sujoy Kumar; Kim, Jinyoung; Kim, Minsoo P., et alARTICLE335 Ferroelectricity-Coupled 2D-MXene-Based Hierarchically Designed High-Performance Stretchable Triboelectric Nanogenerator
2022-04Dynamic and Reprocessable Fluorinated Poly(hindered urea) Network Materials Containing Ionic Liquids to Enhance Triboelectric PerformanceNellepalli, Pothanagandhi; Kim, Minsoo P.; Park, Junyoung, et alARTICLE190 Dynamic and Reprocessable Fluorinated Poly(hindered urea) Network Materials Containing Ionic Liquids to Enhance Triboelectric Performance
2022-03Ultrasensitive Multimodal Tactile Sensors with Skin-Inspired Microstructures through Localized Ferroelectric PolarizationShin, Young-Eun; Park, Yong-Jin; Ghosh, Sujoy Kumar, et alARTICLE314 Ultrasensitive Multimodal Tactile Sensors with Skin-Inspired Microstructures through Localized Ferroelectric Polarization
2022-03Frequency-selective acoustic and haptic smart skin for dual-mode dynamic/static human-machine interfacePark, Jonghwa; Kang, Dong-hee; Chae, Heeyoung, et alARTICLE388 Frequency-selective acoustic and haptic smart skin for dual-mode dynamic/static human-machine interface
2022-02Anisotropic silver nanowire dielectric composites for self-healable triboelectric sensors with multi-directional tactile sensitivityKim, Minsoo P.; Kim, Young-Ryul; Ko, HyunhyubARTICLE280 Anisotropic silver nanowire dielectric composites for self-healable triboelectric sensors with multi-directional tactile sensitivity
2022-01Spatiotemporal Measurement of Arterial Pulse Waves Enabled by Wearable Active-Matrix Pressure Sensor ArraysBaek, Sanghoon; Lee, Youngoh; Baek, JinHyeok, et alARTICLE299 Spatiotemporal Measurement of Arterial Pulse Waves Enabled by Wearable Active-Matrix Pressure Sensor Arrays
2022-01Flexible Pyroresistive Graphene Composites for Artificial Thermosensation Differentiating Materials and Solvent TypesLee, Youngoh; Park, Jonghwa; Choe, Ayoung, et alARTICLE321 Flexible Pyroresistive Graphene Composites for Artificial Thermosensation Differentiating Materials and Solvent Types
2022-01Interdigitated Three-Dimensional Heterogeneous Nanocomposites for High-Performance Mechanochromic Smart MembranesChen, Haomin; Cho, Donghwi; Ko, Kwonhwan, et alARTICLE218 Interdigitated Three-Dimensional Heterogeneous Nanocomposites for High-Performance Mechanochromic Smart Membranes
2021-11MXene-enhanced beta-phase crystallization in ferroelectric porous composites for highly-sensitive dynamic force sensorsKim, Jinyoung; Jang, Moonjeong; Jeong, Geonyoung, et alARTICLE378 MXene-enhanced beta-phase crystallization in ferroelectric porous composites for highly-sensitive dynamic force sensors
2021-10Engineering crystal phase of Nylon-11 films for ferroelectric device and piezoelectric sensorEom, Kijoo; Na, Sangyun; Kim, Joong-Kwon, et alARTICLE549 Engineering crystal phase of Nylon-11 films for ferroelectric device and piezoelectric sensor
2021-08Fully stretchable self-charging power unit with micro-supercapacitor and triboelectric nanogenerator based on oxidized single-walled carbon nanotube/polymer electrodesYang, Hye Jin; Lee, Jae-Won; Seo, Seon Hee, et alARTICLE448 Fully stretchable self-charging power unit with micro-supercapacitor and triboelectric nanogenerator based on oxidized single-walled carbon nanotube/polymer electrodes
2021-07A Fully Biodegradable Ferroelectric Skin Sensor from Edible Porcine Skin GelatineGhosh, Sujoy Kumar; Park, Jonghwa; Na, Sangyun, et alARTICLE448 A Fully Biodegradable Ferroelectric Skin Sensor from Edible Porcine Skin Gelatine
2021-07Electronic Textiles Based on Highly Conducting Poly(vinyl alcohol)/Carbon Nanotube/Silver Nanobelt Hybrid FibersShin, Young-Eun; Cho, Joon Young; Yeom, Jeonghee, et alARTICLE311 Electronic Textiles Based on Highly Conducting Poly(vinyl alcohol)/Carbon Nanotube/Silver Nanobelt Hybrid Fibers

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