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  1. Article

    Open Access

    Rapid mold-free fabrication of long functional PDMS fibers

    Polydimethylsiloxane (PDMS), an optically transparent and inert material, is widely used in biological and semiconductor applications owing to its excellent chemical stability and moldability. This study propo...

    Jeong Hui Lee, Taekyung Lim, Keumyoung Seo, Jeeyin Park, Jonguk Yang in NPG Asia Materials (2022)

  2. Article

    Open Access

    Development of multi-angle fiber array for accurate measurement of flexion and rotation in human joints

    Herein, we have proposed a method that uses a highly stretchable and conductive fiber-based multi-angle fiber array, which precisely measures human joint motion in various degrees of freedom (flexion and rotat...

    Sang-Mi Jeong, Minkyun Son, Youngsoo Kang, Jonguk Yang in npj Flexible Electronics (2021)

  3. No Access

    Article

    Metamaterial’s Acceptable Level of Wrecked Meta-pattern

    The periodic arrangement in metamaterial (MM) should be maintained to ensure the extraordinary properties, but how much periodic irregularity is allowed generally without degrading the properties is not only i...

    Yunju La, Ok Sung Jeon, Young Jun Lee in Journal of the Korean Physical Society (2020)

  4. No Access

    Article

    A-site Do** Effect of Multiferroic BiFeO3 Ceramics

    The structural, magnetic and ferroelectric properties of polycrystalline A-site (A = Ho, Pr and Ce of 10%) doped BiFeO3, which were prepared by the solid-state and rapid sintering methods, have been investigated....

    Taekyung Lim, Ok Sung Jeon, Yunju La in Journal of the Korean Physical Society (2020)

  5. No Access

    Article

    Tunable Metamaterial Absorber Using Ferromagnetic Resonance

    We simulated a study on a tunable metamaterial absorber using ferrite rubber as a dielectric substrate with ferromagnetic properties. The proposed structure employs ferromagnetic resonance, which utilizes the ...

    Yunju La, Ok Sung Jeon, Young Jun Lee in Journal of the Korean Physical Society (2020)

  6. No Access

    Article

    Pore Structure Analysis to Adsorb NOx Gas based on Porous Materials

    We studied the adsorption of nitrogen oxides according to various porous materials room temperature, which can effectively to adsorb the nitrogen oxides. Based on results of measuring NOx concentration, the activ...

    Taekyung Lim, Yunju La, Ok Sung Jeon in Journal of the Korean Physical Society (2020)

  7. Article

    Open Access

    Development of a wearable infrared shield based on a polyurethane–antimony tin oxide composite fiber

    Here, we investigate a wearable-based IR and thermal stealth structure that effectively blocks IR and thermal radiation from a human body or device using a polyurethane–antimony tin oxide (PU–ATO) composite fi...

    Sang-Mi Jeong, Jihun Ahn, Yong Kyu Choi, Taekyung Lim, Keumyoung Seo in NPG Asia Materials (2020)

  8. No Access

    Article

    Distance Effect of Heat Flux Based on Thermal Metamaterials

    In this paper, we studied the heat flux effect of thermal metamaterials according to the distance of each layer, which can effectively suppress heat propagation and improve an adiabatic property, through the t...

    Taekyung Lim, Sang-Mi Jeong, Sanghyun Ju in Journal of the Korean Physical Society (2019)

  9. Article

    Open Access

    Human sweat monitoring using polymer-based fiber

    Lightweight nano/microscale wearable devices that are directly attached to or worn on the human body require enhanced flexibility so that they can facilitate body movement and overall improved wearability. In ...

    Taekyung Lim, Youngseok Kim, Sang-Mi Jeong, Chi-Hyeong Kim in Scientific Reports (2019)

  10. Article

    Open Access

    Pen drawing display

    As advancements in science and technology, such as the Internet of things, smart home systems, and automobile displays, become increasingly embedded in daily life, there is a growing demand for displays with c...

    Sang-Mi Jeong, Taekyung Lim, Jeeyin Park, Chang-Yeol Han in Nature Communications (2019)

  11. Article

    Open Access

    Organic electrochemical transistor-based channel dimension-independent single-strand wearable sweat sensors

    Despite the great potential of polymer microfibers in human-friendly wearable electronics, most previous polymeric electronics have been limited to thin-film-based devices due to practical difficulties in fabr...

    Youngseok Kim, Taekyung Lim, Chi-Hyeong Kim, Chang Su Yeo in NPG Asia Materials (2018)

  12. No Access

    Article

    Detection of chemicals in water using an oxide nanowire transistor covered with an aerogel microsphere thin film as a liquid-vapor separation filter

    In this study, we developed a method to detect small amounts of chemical substances contained in water by using a SnO2 nanowire transistor covered with an aerogel microsphere thin film. The aerogel microsphere th...

    Taekyung Lim, Youngsoo Kang, Sanghyun Ju in Journal of the Korean Physical Society (2018)

  13. No Access

    Article

    Detection of chemicals in water using a three-dimensional graphene porous structure as liquid-vapor separation filter

    In this study, we report the utilization of a three-dimensional (3D) porous graphene structure as liquid–vapor separation filter, which allows the passage of chemical vapors while blocking liquid chemicals and...

    Taekyung Lim, Jaejun Lee, Jonghun Lee, Sanghyun Ju in Nano Research (2017)

  14. Article

    Open Access

    Dynamic graphene filters for selective gas-water-oil separation

    Selective filtration of gas, water and liquid or gaseous oil is essential to prevent possible environmental pollution and machine/facility malfunction in oil-based industries. Novel materials and structures ab...

    Jihye Bong, Taekyung Lim, Keumyoung Seo, Cho-Ah Kwon, Ju Hyun Park in Scientific Reports (2015)

  15. Article

    Open Access

    Metamaterial Absorber for Electromagnetic Waves in Periodic Water Droplets

    Perfect metamaterial absorber (PMA) can intercept electromagnetic wave harmful for body in Wi-Fi, cell phones and home appliances that we are daily using and provide stealth function that military fighter, tan...

    Young Joon Yoo, Sanghyun Ju, Sang Yoon Park, Young Ju Kim, Jihye Bong in Scientific Reports (2015)