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  1. No Access

    Article

    Spacesuit Textiles from Extreme Fabric Materials: Aromatic Amide Polymer and Boron Nitride Nanotube Composite Fiber for Neutron Shielding and Thermal Management

    Space exploration provides unparalleled opportunities for unraveling the mysteries of our origins and exploring planetary systems beyond Earth. Long-distance space missions require successful protection agains...

    Ki-Hyun Ryu, Minsung Kang, Jungwon Kim, Nam-Ho You, Se Gyu Jang in Advanced Fiber 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)

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    Reference Work Entry In depth

    Anisotropic Liquid Crystal Networks from Reactive Mesogens

    Anisotropic liquid crystal (LC) networks prepared from reactive mesogens (RMs) have numerous advantages in optoelectronic devices especially because of the excellent processability. To fabricate the robust thi...

    Dae-Yoon Kim, Namil Kim, Kwang-Un Jeong in Liquid Crystalline Polymers (2020)

  4. No Access

    Living Reference Work Entry In depth

    Anisotropic Liquid Crystal Networks from Reactive Mesogens

    Anisotropic liquid crystal (LC) networks prepared from reactive mesogens (RMs) have numerous advantages in optoelectronic devices especially because of the excellent processability. To fabricate the robust thi...

    Dae-Yoon Kim, Namil Kim, Kwang-Un Jeong in Polymers and Polymeric Composites: A Refer…

  5. Article

    Open Access

    Cholesteric liquid crystal paints: in situ photopolymerization of helicoidally stacked multilayer nanostructures for flexible broadband mirrors

    Utilizing sequential layer-by-layer (LBL) coating and subsequent photopolymerization, we developed circular-polarizing and free-standing mirrors with a broad reflection bandwidth. Photopolymerizable cholesteri...

    Dae-Yoon Kim, Kyung Min Lee, Timothy J. White, Kwang-Un Jeong in NPG Asia Materials (2018)

  6. Article

    Open Access

    Flower-Like Internal Emission Distribution of LEDs with Monolithic Integration of InGaN-based Quantum Wells Emitting Narrow Blue, Green, and Red Spectra

    We report a phosphor-free white light-emitting diodes (LED) realized by the monolithic integration of In0.18Ga0.82N/GaN (438 nm, blue), In0.26Ga0.74N/GaN (513 nm, green), and In0.45Ga0.55N/In0.13Ga0.87N (602 nm, ...

    Kwanjae Lee, Ilgyu Choi, Cheul-Ro Lee, Tae-Hoon Chung, Yoon Seok Kim in Scientific Reports (2017)

  7. Article

    Open Access

    Multifunctional Optical Thin Films Fabricated by the Photopolymerization of Uniaxially Oriented Lyotropic Liquid Crystal Monomers for Electro-Optical Devices

    A multifunctional optical thin film (MOTF) is fabricated by coating the newly synthesized perylene-based reactive mesogen (PBRM) and stabilized by the subsequent photopolymerization. Based on the spectroscopic...

    Pureun Im, Yu-** Choi, Won-** Yoon, Dong-Gue Kang, Minwook Park in Scientific Reports (2016)

  8. Article

    Open Access

    Improvement of Terahertz Wave Radiation for InAs Nanowires by Simple Dip** into Tap Water

    We report improvement of terahertz (THz) wave radiation for Si-based catalyst-free InAs nanowires (NWs) by simple dip** into tap water (DTW). In addition, the possibility of using InAs NWs as a cost-effectiv...

    Dong Woo Park, Young Bin Ji, Jehwan Hwang, Cheul-Ro Lee, Sang Jun Lee in Scientific Reports (2016)

  9. Article

    Open Access

    Hydrogen Generation using non-polar coaxial InGaN/GaN Multiple Quantum Well Structure Formed on Hollow n-GaN Nanowires

    This article demonstrates for the first time to the best of our knowledge, the merits of InGaN/GaN multiple quantum wells (MQWs) grown on hollow n-GaN nanowires (NWs) as a plausible alternative for stable phot...

    Ji-Hyeon Park, Arjun Mandal, San Kang, Uddipta Chatterjee in Scientific Reports (2016)

  10. Article

    Open Access

    Photochemical Isomerization and Topochemical Polymerization of the Programmed Asymmetric Amphiphiles

    For the advancement in multi-stimuli responsive optical devices, we report the elaborate molecular engineering of the dual photo-functionalized amphiphile (abbreviated as AZ1DA) containing both a photo-isomerizab...

    Dae-Yoon Kim, Sang-A Lee, Daseal Jung, Kwang-Un Jeong in Scientific Reports (2016)

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    Article

    Enhanced thermomechanical properties of long and short glass fiber-reinforced polyamide 6,6/polypropylene mixtures by tuning the processing procedures

    Long and short glass fibers (GF) were incorporated into the polyamide 6,6 (PA66)/polypropylene (PP) mixtures in order to enhance the thermomechanical properties. The effect of fiber length and processing proc...

    Namil Kim, Dae-Yoon Kim, Young-** Kim, Kwang-Un Jeong in Journal of Materials Science (2014)

  12. No Access

    Article

    Self-assembled nanostructure of polybenzoxazine resins from reaction-induced microphase separation with poly(styrene-b-4-vinylpyridine) copolymer

    In this study, we synthesized the diblock copolymer poly(styrene-b-4-vinylpyridine) through nitroxide-mediated radical polymerization and then blended it with the monomer (3-phenyl-3,4-dihydro-2H-1,3-benzoxazin-6...

    Wei-Cheng Chu, Jheng-Guang Li, Chih-Feng Wang in Journal of Polymer Research (2013)

  13. No Access

    Article

    TiO2 nanofibers embedding single crystalline TiO2 nanowires

    Epitaxially grown titanium dioxide (TiO2) nanofibers embedding single crystalline TiO2 nanowires (NWs) were successfully fabricated by electropinning poly(vinyl pyrrolidone)/ethanol solutions mixed with hydrother...

    So-Eun Kim, Youngjong Kang, Shiao-Wei Kuo in Journal of Sol-Gel Science and Technology (2011)

  14. No Access

    Article

    Mechanical properties of titania nanofiber mats fabricated by electrospinning of sol–gel precursor

    Flexible mats of titania fibers are prepared by calcination of electrospun polyvinylpyrrolidone fibers containing titanium isopropoxide precursor. Structural investigation of the calcinated nanofibers by X-ray...

    Soo-** Park, George G. Chase, Kwang-Un Jeong in Journal of Sol-Gel Science and Technology (2010)

  15. No Access

    Article

    Poly(allylamine) Stabilized Iron Oxide Magnetic Nanoparticles

    This paper describes a new method for the dispersing and surface-functionalization of metal oxide magnetic nanoparticles (10 nm) with poly(allylamine) (PAA). In this approach, Fe3O4 nanoparticles, prepared with d...

    Jouliana M. El Khoury, Daniela Caruntu in Journal of Nanoparticle Research (2007)