K
Kyu Hwan Oh
Researcher at Seoul National University
Publications - 432
Citations - 17196
Kyu Hwan Oh is an academic researcher from Seoul National University. The author has contributed to research in topics: Microstructure & Electron backscatter diffraction. The author has an hindex of 53, co-authored 430 publications receiving 14341 citations. Previous affiliations of Kyu Hwan Oh include Korea University & KAIST.
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Journal ArticleDOI
Highly stretchable and tough hydrogels
Jeong-Yun Sun,Xuanhe Zhao,Widusha R. K. Illeperuma,Ovijit Chaudhuri,Kyu Hwan Oh,David J. Mooney,David J. Mooney,Joost J. Vlassak,Zhigang Suo +8 more
TL;DR: The synthesis of hydrogels from polymers forming ionically and covalently crosslinked networks is reported, finding that these gels’ toughness is attributed to the synergy of two mechanisms: crack bridging by the network of covalent crosslinks, and hysteresis by unzipping thenetwork of ionic crosslinks.
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Highly stretchable, transparent ionic touch panel
TL;DR: An ionic touch panel based on a polyacrylamide hydrogel containing lithium chloride salts is demonstrated, which can be operated under more than 1000% areal strain without sacrificing its functionalities.
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Microscale spherical carbon-coated Li4Ti5O12 as ultra high power anode material for lithium batteries
Hun-Gi Jung,Seung-Taek Myung,Chong Seung Yoon,Seoung-Bum Son,Kyu Hwan Oh,Khalil Amine,Bruno Scrosati,Bruno Scrosati,Yang-Kook Sun +8 more
TL;DR: In this paper, the effect of the carbon content on the physicochemical and electrochemical properties of C-Li4Ti5O12 particles was extensively studied, and it was shown that uniformly coated carbon layer from pitch inhibited the growth of primary particles, maintaining the spherical morphology, similar to the TiO2 precursor in size and shape, and also enabling partial reduction of the starting Ti4+ to Ti3+.
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Double Carbon Coating of LiFePO4 as High Rate Electrode for Rechargeable Lithium Batteries
Sung Woo Oh,Seung-Taek Myung,Seung-Min Oh,Kyu Hwan Oh,Khalil Amine,Bruno Scrosati,Yang-Kook Sun +6 more
TL;DR: A double coating process is reported that greatly improves the uniformity of the carbon coating on both the primary and secondary LiFePO particles, resulting in electrodes having high volumetric energy density and rate capability.
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The characterization of telephone cord buckling of compressed thin films on substrates
Myoung-Woon Moon,Myoung-Woon Moon,Henrik Jeldtoft Jensen,John W. Hutchinson,Kyu Hwan Oh,Anthony G. Evans +5 more
TL;DR: In this paper, the topology of the telephone cord buckling of compressed diamond-like carbon (DLC) on glass substrates has been characterized with atomic force microscopy (AFM) and with the focused ion beam (FIB) imaging system.