Han-Chan Lee

ORCID: 0000-0002-8699-846X
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About
Contact & Profiles
Research Areas
  • Advanced Sensor and Energy Harvesting Materials
  • Conducting polymers and applications
  • Horticultural and Viticultural Research
  • Supercapacitor Materials and Fabrication
  • Plant Physiology and Cultivation Studies
  • Food Quality and Safety Studies
  • Plant Reproductive Biology
  • Postharvest Quality and Shelf Life Management
  • Advanced battery technologies research
  • Phytochemicals and Antioxidant Activities
  • Fermentation and Sensory Analysis
  • Plant Pathogens and Fungal Diseases
  • Ecology and Conservation Studies
  • Metal and Thin Film Mechanics
  • Agriculture, Soil, Plant Science
  • Advanced materials and composites
  • Tactile and Sensory Interactions
  • Polydiacetylene-based materials and applications
  • Flowering Plant Growth and Cultivation
  • Advanced ceramic materials synthesis
  • Diamond and Carbon-based Materials Research
  • Plant and animal studies
  • Powder Metallurgy Techniques and Materials
  • Fungal Plant Pathogen Control
  • Powdery Mildew Fungal Diseases

Korea University
2017-2024

Korea Institute of Industrial Technology
2017-2019

Pear Therapeutics (United States)
2013-2019

Rural Development Administration
2012-2017

Seoul National University
2013

As part of increased efforts to develop wearable healthcare devices for monitoring and managing physiological metabolic information, stretchable electrochemical sweat sensors have been investigated. In this study, we report on the fabrication a skin-attachable sensor detecting glucose pH in sweat. A patterned electrode was fabricated via layer-by-layer deposition carbon nanotubes (CNTs) top Au nanosheets (AuNS) prepared by filtration onto substrate. For detection pH, CoWO4/CNT...

10.1021/acsami.8b03342 article EN ACS Applied Materials & Interfaces 2018-04-06

In this study, we demonstrate the fabrication of a highly sensitive flexible temperature sensor with bioinspired octopus-mimicking adhesive. A resistor-type consisting composite poly(N-isopropylacrylamide) (pNIPAM)-temperature hydrogel, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate, and carbon nanotubes exhibits very high thermal sensitivity 2.6%·°C-1 between 25 40 °C so that change in skin 0.5 can be accurately detected. At same time, polydimethylsiloxane adhesive layer rim...

10.1021/acsami.7b17727 article EN ACS Applied Materials & Interfaces 2018-02-05

Textile-based electronics have attracted much attention as they can perfectly combine the functionality of wearable devices with soft and comfortable properties flexible textile fibers. In this work, we report a dynamically stretchable high-performance supercapacitor for powering an integrated sensor in all-in-one system to detect various biosignals. The fabricated MWCNT/MoO3 nanocomposite electrodes nonaqueous gel electrolyte, along course direction fabric, exhibits stable high...

10.1021/acsnano.9b04340 article EN ACS Nano 2019-08-28

A foldable array of patterned graphene/ZnO nanoparticle UV sensor and asymmetric micro‐supercapacitors (AMSCs) integrated on a paper substrate with liquid metal interconnections is reported. The resistor type based nanoparticles to be driven by the stored energy AMSCs. AMSC consists MnO 2 nanoball deposited multiwalled carbon nanotubes (MWNTs) V O 5 wrapped MWNTs as positive negative electrodes, respectively. As an electrolyte, propylene carbonate‐poly(methyl methacrylate)‐LiClO 4 , organic...

10.1002/adfm.201700135 article EN Advanced Functional Materials 2017-05-23

For practical applications of high-performance supercapacitors as wearable energy storage devices attached to skin or clothes, the are recommended have stable mechanical and electrochemical performances during dynamic deformations, including stretching, due real-time movements human body. In this work, we demonstrate a skin-like, dynamically stretchable, planar supercapacitor (SPS). The SPS consists buckled manganese/molybdenum (Mn/Mo) mixed oxide@multiwalled carbon nanotube (MWCNT)...

10.1021/acsnano.8b08645 article EN ACS Nano 2018-12-28

Abstract Among the extensive development of wearable electronics, which can be implanted onto bodies or embedded in clothes, textile‐based devices have gained significant attention. For daily basis applications, energy storage are required to stable under harsh environmental conditions and different deformational conditions. In this study, a stretchable supercapacitor with high electrochemical performance, mechanical stability, temperature tolerance over wide range is reported. It exhibits...

10.1002/adfm.202106491 article EN Advanced Functional Materials 2021-09-12

Abstract A high‐voltage supercapacitor with shape memory for driving an integrated NO 2 gas sensor is fabricated using a Norland Optical Adhesive 63 polymer substrate, which can recover the original after deformation by short‐time heating. The consists of multiwalled carbon nanotube electrodes and organic electrolyte. By electrolyte consisting adiponitrile, acetonitrile, dimethyl carbonate in optimized volume ratio 1:1:1, high operation voltage V obtained. Furthermore, asymmetric...

10.1002/adfm.201901996 article EN Advanced Functional Materials 2019-04-12

A wire-shaped supercapacitor (WSS) has structural advantages of high flexibility and ease incorporation into conventional textile substrates. In this work, we report a thin reproducible WSS fabricated via layer-by-layer (LbL) assembly multiwalled carbon nanotubes (MWCNTs), combined with an organic electrolyte propylene carbonate (PC)-acetonitrile (ACN)-lithium perchlorate (LiClO4)-poly(methyl methacrylate) (PMMA) that extends the voltage window to 1.6 V. The MWCNTs were uniformly deposited...

10.1021/acsami.8b07113 article EN ACS Applied Materials & Interfaces 2018-07-13
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