Center for Applied Electromagnetic Research
| Principal Researcher | Sangyoon Park |
|---|---|
| Tel | 031-888-9044 / 031-888-9947 |
| yoonpark77@snu.ac.kr |
Research Areas
- 1) Terahertz reasearch
We are exploring the role of water in biological systems and further down the road to understand the secrets of life in picosecond dynamics. In particular, we discovered the ways of selective control of the biomolecules, cells and tissues using pulsed and continuous terahertz waves and provided a wide portfolio of industrialized products and services of RF, microwave, millimeter, terahertz and optical waves.
- 2) Wave fusion technology research
We are developing various fusion technologies based on wave controlling. It is a voice recognition-based hands-free device attached to a fire-fighting helmet, electromagnetic wave shielding/absorption and transparent materials based on metamaterials, fabric-type light emitting devices, and 2D material based electroluminescence materials/devices. In particular, we are researching to develop and investigate materials/devices capable of controlling/sensing various waves such as sound waves, radio waves, and UV to IR areas.
- 3) Nano-Energy/Bio research
We are researching on graphene-based functional electronic fabrics and organic-based eco-friendly polymer nanomaterials. In particular, improved nanocomposites are applied to non-contact biosignal detection, electrochemical battery, and eco-friendly polymer coating.
Research fields
- 1. Terahertz reasearch
- Tera hertz wave source
1) Theory of tera hertz wave source
2) High power terahertz wave vacuum device
3) Graphene based cold cathode- Tera hertz metamaterials
1) Refractive index controllable metamaterials
2) High-Q metamaerials
3) Phase-sensitive metamaterials- Biomedical Tera hertz wave
1) Tera hertz wave spectroscopy
2) Hydration dynamics of ion & cell membrane
3) Skin hydration - 2) Wave fusion technology research
- Frequency-selective transparent metamaterials
- EM wave perfect absorber
- Application of metamaterials such as hyper-dome
- Voice recognition-based hands-free device attached to a fire-fighting helmet
- Fabric-type sensor and materials/devices
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3) Nano-Energy/Bio research
- High functional graphene fiber material
- Electromagnetic shielding material
- Non-contact bio-signal detection and sensor
- PM / VOC filter and reduction technology
- Electrochemical battery / luminescent material
- Eco-friendly polymer coating material
Content of Research
- 1) Terahertz reasearch
- Tera hertz wave spectroscopy
- Cell membrane hydration dynamics
- Skin hydration dynamics
- Ion hydration dynamics
- Graphene based Tera hertz wave source
- Metamaterials for sensing or active electronic devices
- 2) Wave fusion technology research
- Array patch antenna & beamforming technology for 5G
- Beamforming & noise canceling technology for acoustic wave
- 2D materials fabrications such as MXene
- Quantum dots fabrications based on MXene
- Applications of metamaterials based on fiber
- Thermal metamaterials
-
3) Nano-Energy/Bio research
- High functional flexible battery system
- Electromagnetic wave shield
- PM / VOC filter
- Eco-friendly polymer synthesis
- Two-dimensional inorganic compounds : MXene, graphene
- Large-scale manufacturing process of graphene based fiber
- High performance inorganic catalyst
Recent publications
- 1) Terahertz reasearch
- S. Kim & G. Park et. al., High‐Q Metallic Fano Metamaterial for Highly Efficient Cerenkov Lasing, Adv. Opt. Mater. 6 (12), 1800041 (2018). (IF : 7.430)
- H. Son & G. Park et. al., Improved thickness estimation of liquid water using Kramers–Kronig relations for determination of precise optical parameters in terahertz transmission spectroscopy, Opt. Express, 25, (4), 4509-4518 (2017). (IF : 3.561)
- I. Baek & G. Park et. al., Uniform high current and current density field emission from the chiseled edge of a vertically aligned graphene-based thin film, J. Electromagnet. Wave, 31 (18), 2064–2073 (2017). (IF : 0.91)
- K. Lee & G. Park et. al., Microwave Funneling through Sub-10 nm Nanogaps, ACS photonics, 3 (4), 537-542 (2016). (IF : 6.880)
- 2) Wave fusion technology research
- Y. J. Yoo & S. Y. Park et. al., Distance Effect of Heat Flux Based on Thermal Metamaterials, J. Korean Phys. Soc. 75 (12), 1028-1032 (2019). (IF : 0.493)
- Y. J. Yoo & S. Y. Park et. al., Heat flux effect of thermal metamaterials, AIP Adv. 8 (10), 105231 (2018). (IF : 1.579)
- J. Kim & S. Y. Park et al., PDMS-based Screw-wall Microfluidic Channel Forming a Turbulent Flow at Low Reynold Number, J. Korean Phys. Soc. 73, 60–64(2018). (IF : 0.418)
- Y. J. Yoo, et. al., Flexible perfect metamaterial absorbers for electromagnetic wave (review paper), J. Electromagnet. Wave. 31 (7), 663-715 (2017). (IF : 1.531)
- Y. J. Yoo & S. Y. Park et. al., Experimental realization of tunable metamaterial hyper-transmitter, Sci. Rep. 6, 33416 (2016). (IF : 4.122)
- Y. J. Yoo & S. Y. Park et. al., Metamaterial absorber for electromagnetic waves in periodic water droplets, Sci. Rep. 5, 14018 (2015). (IF : 4.122)
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3) Nano-Energy/Bio research
- O. S. Jeon & S. Y. Park et. al., Proliferating nearby oxygen vacancies to Ni on ceria for enhanced dry reforming of methane, Appl. Catal. B. Under review (2020). (IF : 14.229)
- E J. Yang & S. Y. Park et. al., Room temperature manufacturing photoluminescent graphene quantum dots based on MXene, Carbon, 2020, Under review (2020) (IF : 7.466)
- Y. S. Choi & S. Y. Park et. al., Multifunctional reduced graphene oxide-CVD graphene core–shell fibers. Nanoscale, 11 (26), 12637-12642 (2019). (IF : 6.970)
- T. Q. Trung & S. Y. Park et al., A Stretchable Strain-Insensitive Temperature Sensor Based on Free-Standing Elastomeric Composite Fibers for On-Body Monitoring of Skin Temperature, ACS Appl. Mater. Interfaces, 11 (2), 2317-2327 (2019). (IF : 8.456)
- J. Ahan & S. Y. Park et al., Infrared Invisibility Cloak Based on Polyurethane–Tin Oxide Composite Microtubes, ACS Appl. Mater. Interfaces, 11 (15), 14296-14304 (2019). (IF : 8.456)
- W. Jeong & S. Y. Park et al., Self-Emitting Artificial Cilia Produced by Field Effect Spinning, ACS Appl. Mater. Interfaces, 11 (38), 35286-35293 (2019). (IF : 8.456)
- T. Lim & S. Y. Park et al., Human sweat monitoring using polymer-based fiber, Sci. Rep. 9, 17294 (2019). (IF : 4.122)
- N. Kim & S. Y. Park et al., Sensitivity and Stability Enhancement of Surface Plasmon Resonance Biosensors based on a Large-Area Ag/MoS2 Substrate, Sensors, 19 (8), 1894 (2019). (IF : 3.031)
- Y. Heo & S. Y. Park et. al., Large‐Scale Conductive Yarns Based on Twistable Korean Traditional Paper (Hanji) for Supercapacitor Applications: Toward High‐Performance Paper Supercapacitors. Adv. Energy Mater. 8 (27), 1801854 (2018). (IF : 24.884)
- T. Q. Trung & S. Y. Park et. al., Freestanding, Fiber‐Based, Wearable Temperature Sensor with Tunable Thermal Index for Healthcare Monitoring. Adv. healthc. mater. 7 (12), 1800074 (2018). (IF : 6.270)
- Y. Kim & S. Y. Park et. al., Organic electrochemical transistor-based channel dimension-independent single-strand wearable sweat sensors, NPG Asia Mater. 10, 1086–1095 (2018). (IF : 9.157)
- C. S. Yeo & S. Y. Park et. al., Copper-embedded reduced graphene oxide fibers for multi-sensors. J. Mater. Chem. C., 5 (48), 12825-12832 (2017). (IF : 6.641)
- J. Lee & S. Y. Park et. al., Observation of a water droplet motion by using an oxide nanowire transistor covered by a nanofiber mesh. Nanotechnology, 27 (50), 505203 (2016). (IF : 3.399)
Recent patents & book
- 1) Terahertz reasearch
- G. Park et. al., Electromagnetic wave interaction circuit structure using sinusoidal waveguide, 2018. patent application.
- 2) Wave fusion technology research
- Y. J. Yoo et. al.,, Wide angle object detecting radar dome electromagnetic material. 2019. patent application.
- S. Y. Park et. al., Acoustic metamaterial and speaker module containing meta atoms. 2019. granted patent.
- S. Y. Park et. al., Acoustic metamaterial and lens containing meta atoms. 2018. patent application.
- Y. J. Yoo et. al., Metamaterials for Perfect Absorption, Springer (2017).
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3) Nano-Energy/Bio research
- S. Y. Park et. al., Manufacturing method of graphene oxide fiber, graphene fiber, graphene or graphene (oxide) composite fiber using electric field induction wet spinning process. 2018. patent application.
- S. Y. Park et. al., Method of patterning metal on the surface of graphene oxide or graphene oxide composite material. 2018. patent application.
- S. Y. Park et. al., Manufacturing method of graphene fiber and multi-sensor containing metal nanoparticles. 2019. granted patent.
