O
O Ok Park
Researcher at KAIST
Publications - 374
Citations - 12361
O Ok Park is an academic researcher from KAIST. The author has contributed to research in topics: Nanocomposite & Electroluminescence. The author has an hindex of 53, co-authored 373 publications receiving 11444 citations. Previous affiliations of O Ok Park include Korea Institute of Science and Technology & Samsung.
Papers
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Highly Stretchable and Wearable Graphene Strain Sensors with Controllable Sensitivity for Human Motion Monitoring
TL;DR: Wearable electronics are fabricated with implanted sensors that can monitor diverse human motions, including joint movement, phonation, swallowing, and breathing, and can detect both large- and small-scale human motions.
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Enhancement of Donor–Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles
Dong Hwan Wang,Do Youb Kim,Kyeong Woo Choi,Jung Hwa Seo,Sang Hyuk Im,Jong Hyeok Park,O Ok Park,Alan J. Heeger +7 more
TL;DR: This research was supported by Future-based Technology Development Program (Nano Fields, 2010-0029321) and the WCU (World Class University) program (R32-2008-000-10142-0) through the NRF of Korea funded by the MEST.
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Enhanced Power Conversion Efficiency in PCDTBT/PC70BM Bulk Heterojunction Photovoltaic Devices with Embedded Silver Nanoparticle Clusters
Dong Hwan Wang,Dong Hwan Wang,Keum Hwan Park,Jung Hwa Seo,Jason Seifter,Ji Hye Jeon,Jung Kyu Kim,Jong Hyeok Park,O Ok Park,O Ok Park,Alan J. Heeger +10 more
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Capacitance properties of graphite/polypyrrole composite electrode prepared by chemical polymerization of pyrrole on graphite fiber
TL;DR: In this paper, composite electrodes for supercapacitors are prepared via chemical polymerization of pyrrole (Py) on the surface of a porous graphite fiber matrix, and capacitance properties are investigated with cyclic voltammetry (CV), ac impedance spectroscopy and charge-discharge tests.
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Rheology and dynamics of immiscible polymer blends
Hyang Mok Lee,O Ok Park +1 more
TL;DR: The fundamental problems in two immiscible polymer blends, such as deformation, break-up, and coalescence of the dispersed phase, were considered instead of formulating a single droplet problem, it was assumed that there is a kind of structure of the interfaces, in which the interfacial area (Q) and its anisotropy (qij) are equilibrated due to the competition between flow and interfacial tension.