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  1. Article

    Open Access

    Molecular-level hybridization of single-walled carbon nanotubes and a copper complex with counterbalanced electrostatic interactions

    Hybridization and wet processibility are highly desired development strategies for next-generation nanomaterials. In particular, the hybridization of carbon nanotubes (CNTs) and transition metals has been inve...

    Mi-Jeong Kim, Hyeonbeom Kim, Jungmo Kim, Yeo ** Lee, Wonki Lee in Communications Materials (2024)

  2. Article

    Open Access

    Boost Up the Mechanical and Electrical Property of CNT Fibers by Governing Lyotropic Liquid Crystalline Mesophases with Aramid Polymers for Robust Lightweight Wiring Applications

    Monofilament type of polyaromatic amide (PA) and carbon nanotube (CNT) composite fibers is presented. A concept of a lyotropic liquid crystal (LLC) constructed via a spontaneous self-assembly is introduced to ...

    Ki-Hyun Ryu, Jeong-Gil Kim, Dongju Lee, Seo Gyun Kim in Advanced Fiber Materials (2023)

  3. Article

    Open Access

    Copper-graphene heterostructure for back-end-of-line compatible high-performance interconnects

    Here, we demonstrate the fabrication of a Cu-graphene heterostructure interconnect by the direct synthesis of graphene on a Cu interconnect with an enhanced performance. Multilayer graphene films were synthesi...

    Myungwoo Son, Jaewon Jang, Yongsu Lee, Jungtae Nam in npj 2D Materials and Applications (2021)

  4. No Access

    Article

    Deformation behavior of nanocrystalline and ultrafine-grained CoCrCuFeNi high-entropy alloys

    Nanocrystalline (NC) and ultrafine-grained (UFG) CoCrCuFeNi high-entropy alloy (HEA) with grain size ranging between 59 and 386 nm was produced via powder metallurgy and heat treatment. The as-sintered HEA exh...

    Seung** Nam, Jun Yeon Hwang, Jonggyu Jeon, Jihye Park in Journal of Materials Research (2019)

  5. No Access

    Article

    Revealing molecular-level surface redox sites of controllably oxidized black phosphorus nanosheets

    Bulk and two-dimensional black phosphorus are considered to be promising battery materials due to their high theoretical capacities of 2,600 mAh g−1. However, their rate and cycling capabilities are limited by th...

    Puritut Nakhanivej, Xu Yu, Sul Ki Park, Soo Kim, **-Yong Hong in Nature Materials (2019)

  6. Article

    Open Access

    Ultimate limit in size and performance of WSe2 vertical diodes

    Precise do**-profile engineering in van der Waals heterostructures is a key element to promote optimal device performance in various electrical and optical applications with two-dimensional layered materials...

    Ghazanfar Nazir, Hakseong Kim, Jihwan Kim, Kyoung Soo Kim in Nature Communications (2018)

  7. Article

    Open Access

    Publisher Correction: Synthesis of nanobelt-like 1-dimensional silver/nanocarbon hybrid materials for flexible and wearable electronics

    A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.

    Joong Tark Han, Jeong In Jang, Joon Young Cho, Jun Yeon Hwang in Scientific Reports (2018)

  8. Article

    Open Access

    Structural effect of two-dimensional BNNS on grain growth suppressing behaviors in Al-matrix nanocomposites

    While nanocrystalline (NC) metals exhibit superior strength to conventional microcrystalline metals, their thermal instability has hampered their application at high temperatures. Herein, two-dimensional (2D) ...

    Seung** Nam, Kunok Chang, Woonki Lee, Moon J. Kim, Jun Yeon Hwang in Scientific Reports (2018)

  9. No Access

    Article

    Structure and properties of graphene oxide/cellulose hybrid fibers via divalent metal ions treatment

    Cellulose hybrid fibers (CeHFs), hybridized via graphene oxide (GO) and metal ions (Ca2+), are synthesized by dry-jet wet spinning. The synthesized GO–Ca2+-CeHFs exhibit the tensile strength and the breaking elon...

    Jisu Ryu, ** Seong Lim, Seokhoon Ahn, Seong Mu Jo, Frank K. Ko, Joong Hee Lee in Cellulose (2018)

  10. No Access

    Article

    Directly-prelithiated carbon nanotube film for high-performance flexible lithium-ion battery electrodes

    Carbon nanotube (CNT) films are very flexible and serve as active materials for lithium-ion batteries (LIBs). Hence, they have high potential as flexible free-standing electrodes for wearable batteries. Howeve...

    Sehyun Lee, Hyeonjun Song, Jun Yeon Hwang, Young** Jeong in Fibers and Polymers (2017)

  11. Article

    Open Access

    Synthesis of nanobelt-like 1-dimensional silver/nanocarbon hybrid materials for flexible and wearable electronics

    Most synthetic processes of metallic nanostructures were assisted by organic/inorganic or polymeric materials to control their shapes to one-dimension or two-dimension. However, these additives have to be remo...

    Joong Tark Han, Jeong In Jang, Joon Young Cho, Jun Yeon Hwang in Scientific Reports (2017)

  12. Article

    Open Access

    Flexible Indium–Tin Oxide Crystal on Plastic Substrates Supported by Graphene Monolayer

    Flexible and crystallized indium–tin oxide (ITO) thin films were successfully obtained on plastic polyethylene terephthalate (PET) films with monolayered graphene as a platform. The highly crystalline ITO (c-I...

    Sang ** Lee, Yekyung Kim, Jun-Yeon Hwang, Ju-Ho Lee, Seungon Jung in Scientific Reports (2017)

  13. Article

    Open Access

    Centimeter Scale Patterned Growth of Vertically Stacked Few Layer Only 2D MoS2/WS2 van der Waals Heterostructure

    Two-dimensional (2D) van der Waal (vdW) heterostructures composed of vertically-stacked multiple transition metal dichalcogenides (TMDs) such as molybdenum disulfide (MoS2) and tungsten disulfide (WS2) are envisi...

    Nitin Choudhary, Juhong Park, Jun Yeon Hwang, Hee-Suk Chung in Scientific Reports (2016)

  14. Article

    Open Access

    Three-Dimensional Porous Copper-Graphene Heterostructures with Durability and High Heat Dissipation Performance

    Porous materials have historically been of interest for a wide range of applications in thermal management, for example, in heat exchangers and thermal barriers. Rapid progress in electronic and optoelectronic...

    Hokyun Rho, Seungmin Lee, Sukang Bae, Tae-Wook Kim, Dong Su Lee in Scientific Reports (2015)

  15. No Access

    Article

    Laser-Deposited In Situ TiC-Reinforced Nickel Matrix Composites: 3D Microstructure and Tribological Properties

    A new class of Ni-Ti-C-based metal-matrix composites has been developed using the laser-engineered net sha**™ process. These composites consist of an in situ formed and homogeneously distributed titanium carbid...

    Tushar Borkar, John Sosa, Jun Yeon Hwang, Thomas W. Scharf, Jaimie Tiley in JOM (2014)

  16. Article

    Open Access

    Extremely Efficient Liquid Exfoliation and Dispersion of Layered Materials by Unusual Acoustic Cavitation

    Layered materials must be exfoliated and dispersed in solvents for diverse applications. Usually, highly energetic probe sonication may be considered to be an unfavourable method for the less defective exfolia...

    Joong Tark Han, Jeong In Jang, Haena Kim, Jun Yeon Hwang in Scientific Reports (2014)

  17. No Access

    Article

    Strength versus ductility in carbon nanotube reinforced nickel matrix nanocomposites

    Two types of carbon nanotube reinforced nickel (CNT/Ni) nanocomposites were processed, both involving spark plasma sintering (SPS) of precursor powders consisting of nickel and carbon nanotubes. The first type...

    Tushar Borkar, Jaewon Hwang, Jun Yeon Hwang in Journal of Materials Research (2014)