Functional Nanomaterials & Devices

기능성 나노소재 및 소자 연구실

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기능성 나노소재 및 소자 연구실

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.

관심분야

Polymers, Nanomaterials

희망분야

Flexible sensors, Wearable devices, Bio￾inspired materials, Smart materials

Research Keywords and Topics

• Functional nanomaterials: hybrid structures of polymers and nanomaterials (metallic and semiconducting nanoparticles, nanotubes, nanowires, graphenes, 2D materials, etc.)
• Flexible and wearable electronic devices: electronic skin sensors, flexible/stretchable electrodes, transistors, and diodes
• Bio-inspired materials: functional micro/nanomaterials micking the multifunctional micro/nanostructures of biological systems
• Smart materials: stimuli (light, pressure, pH, temperature, etc.) responsive materials

Research Publications
MORE

• SCIENCE ADVANCES / Soft and ion-conducting hydrogel artificial tongue for astringency perception / Yeom, Jeonghee; Choe, Ayoung; Lim, Seongdong; Lee, Youngsu; Na, Sangyun; Ko, Hyunhyub / 2020-06
• SCIENCE ADVANCES / Transparent and conductive nanomembranes with orthogonal silver nanowire arrays for skin-attachable loudspeakers and microphones / Kang, Saewon; Cho, Seungse; Shanker, Ravi; Lee, Hochan; Park, Jonghwa; Um, Doo￾Seung; Lee, Youngoh; Ko, Hyunhyub / 2018-08
• SCIENCE ADVANCES / Fingertip skin-inspired microstructured ferroelectric skins discriminate static/dynamic pressure and temperature stimuli / Park, Jonghwa; Kim, Marie; Lee, Youngoh; Lee, Heon Sang; Ko, Hyunhyub / 2015-10

Patents

• 강유전성 복합 소재 기반 인공 전자 피부 / 고현협, 박종화, 이헌상 / 2015-09
• 은나노와이어 기반의 고효율 투명전극 제조장치 및 투명전극 제조방법 / 고현협 / 2015-06

국가과학기술표준분류

  • EC. 화공
  • EC02. 나노화학공정기술
  • EC0202. 나노소재 가공기술

국가기술지도분류

  • 기반주력산업 가치창출

녹색기술분류

  • 에너지원기술

6T분류

  • NT 분야
  • 나노소재
  • 030211. 나노소재기술 (나노분말소재, 광학용 나노소재, 고기능 시너지 소재, 촉매/환경/기능소재에 중점)