Seungbae Oh
Sungkyunkwan University
35 Papers
74 Citations
Seungbae Oh is an academic researcher from Sungkyunkwan University. The author has contributed to research in topics: van der Waals force & Exfoliation joint. The author has an hindex of 10, co-authored 34 publications.
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Papers
Inorganic Molecular Chain Nb 2 Se 9 : Synthesis of Bulk Crystal and One-Atom-Thick Level Exfoliation
Seungbae Oh,Sudong Chae,Bum Jun Kim,Akhtar J. Siddiqa,Kyung Hwan Choi,Woo-Sung Jang,Keun Ho Lee,Hyo Yeol Kim,Dong Kyu Lee,Young-Min Kim,Hak Ki Yu,Jae-Young Choi +11 more
Abstract: A novel one‐dimensional (1D) inorganic material, Nb2Se9, which can be separated into atomic‐level, is synthesized through chemical reaction between Nb and Se sources. Nb2Se9 and Se crystals are formed under an excess Se condition to avoid other phase such as NbSe3, and the residual Se can be removed by heat treatment; thus, high‐purity Nb2Se9 crystals can be obtained. The one‐atom‐thick level Nb2Se9 nanochains are successfully obtained by mechanical exfoliation and dispersion in a solvent. The covalently bonded Nb2Se9 chain, when isolated from its three‐dimensional bulk material, is expected to have unique physical properties based on electron confinement in the 1D chain structure and the absence of dangling bonds. In addition, it has excellent thermal stability (up to 500 °C) and can be widely used in various fields.
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Exceptional Mechanical Properties of Phase-Separation-Free Mo3Se3--Chain-Reinforced Hydrogel Prepared by Polymer Wrapping Process.
Si Hyun Kim,Seungbae Oh,Sudong Chae,Jin Woong Lee,Kyung Hwan Choi,Kyung Eun Lee,Jongwha Chang,Liyi Shi,Jae-Young Choi,Jung Heon Lee +9 more
TL;DR: The chemical compatibility of the Mo3Se3- nanowire with the gelatin matrix is significantly improved, which enables the fabrication of a phase-separation-free Mo3 Se3--reinforced gelatin hydrogel that exhibits improvements in the mechanical properties significantly larger than those for other reported composite hydrogels reinforced with one-dimensional materials.
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Exfoliation and Characterization of V₂Se₉ Atomic Crystals.
Bum Jun Kim,Byung Joo Jeong,Seungbae Oh,Sudong Chae,Kyung Hwan Choi,Tuqeer Nasir,Sang Hoon Lee,Kwan-Woo Kim,Hyung Kyu Lim,Ik Jun Choi,Ji-Yun Moon,Hak Ki Yu,Jae-Hyun Lee,Jae-Young Choi +13 more
TL;DR: Mass production of one-dimensional, V2Se9 crystals, was successfully synthesized using the solid-state reaction of vanadium and selenium and through the mechanical exfoliation method, the bulk V2 Se9 crystal was easily separated to nanoribbon structure and it was confirmed that as-grown V2Sem9 crystals consist of innumerable single V2se9 chains linked by van der Waals interaction.
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Isolation of Nb₂Se₉ Molecular Chain from Bulk One-Dimensional Crystal by Liquid Exfoliation.
Sudong Chae,Akhtar J. Siddiqa,Seungbae Oh,Bum Jun Kim,Kyung Hwan Choi,Woo-Sung Jang,Young-Min Kim,Hak Ki Yu,Jae-Young Choi +8 more
TL;DR: 1D Nb2Se9 chains, whose size is less than 10 nm, are well dispersed and it is possible to disperse mono-chains of 1 nm or less in a specific dispersion region, and the 1D unit chain with dangling bond free surface and high volume to area ratio is expected to be used in applications that utilize the surface of the material.
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Ternary Transition Metal Chalcogenide Nb2Pd3Se8: A New Candidate of 1D Van der Waals Materials for Field-Effect Transistors
Byung Joo Jeong,Kyung Hwan Choi,Jiho Jeon,Sang Ok Yoon,You Kyoung Chung,Dongchul Sung,Sudong Chae,Bum Jun Kim,Seungbae Oh,Sang Hoon Lee,Chaeheon Woo,Tae Yeong Kim,Jungyoon Ahn,Jae-Hyun Lee,Joonsuk Huh,Hak Ki Yu,Jae-Young Choi +16 more
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