D
Dalsu Choi
Researcher at Korea Institute of Science and Technology
Publications - 26
Citations - 1225
Dalsu Choi is an academic researcher from Korea Institute of Science and Technology. The author has contributed to research in topics: Polymer & Carbon. The author has an hindex of 17, co-authored 26 publications receiving 882 citations. Previous affiliations of Dalsu Choi include The Wallace H. Coulter Department of Biomedical Engineering & Georgia Institute of Technology.
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Fabrication of low-cost carbon fibers using economical precursors and advanced processing technologies
TL;DR: In this paper, a series of previous achievements which incorporated low-cost precursors into CFs fabrication including novel acrylic polymers, polyethylene (PE), lignin, and pitch are reviewed.
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Elastomer-Polymer Semiconductor Blends for High-Performance Stretchable Charge Transport Networks
Dalsu Choi,Hyungchul Kim,Nils Persson,Ping-Hsun Chu,Mincheol Chang,Ji-Hwan Kang,Samuel Graham,Elsa Reichmanis +7 more
TL;DR: In this article, an inverse relationship between mechanical ductility and mobility/molecular ordering in conjugated polymer systems was determined definitively through systematic interrogation of poly(3-hexylthiophene) (P3HT) films with varied degrees of molecular ordering and associated charge transport performance.
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Ordering of Poly(3-hexylthiophene) in Solutions and Films: Effects of Fiber Length and Grain Boundaries on Anisotropy and Mobility
Nabil Kleinhenz,Nils Persson,Zongzhe Xue,Ping-Hsun Chu,Gang Wang,Zhibo Yuan,Michael McBride,Dalsu Choi,Martha A. Grover,Elsa Reichmanis +9 more
TL;DR: In this article, the impact of fiber length and anisotropy on macroscopic charge transport performance was evaluated using an organic field effect transistor (OFET) architecture, and both aged and sonicated solutions exhibited charge carrier mobilities that were an order of magnitude higher than that obtained for pristine samples.
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Fluidic Processing of High-Performance ZIF-8 Membranes on Polymeric Hollow Fibers: Mechanistic Insights and Microstructure Control
Kiwon Eum,Ali A. Rownaghi,Ali A. Rownaghi,Dalsu Choi,Ramesh R. Bhave,Christopher W. Jones,Sankar Nair +6 more
TL;DR: In this article, a detailed mechanistic understanding of polycrystalline metal-organic framework (ZIF-8) membrane growth under microfluidic conditions in polyamide-imide hollow fibers is reported.
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Solvent Based Hydrogen Bonding: Impact on Poly(3-hexylthiophene) Nanoscale Morphology and Charge Transport Characteristics
TL;DR: It is demonstrated that supramolecular assembly and subsequent enhancement of charge transport characteristics of conjugated polymers can be facilitated simply by adding small amounts of a more volatile poor solvent, which can hydrogen bond with the majority solvent.