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  1. Article

    Graphite block derived from natural graphite with bimodal particle size distribution

    This paper presents a novel method for the bimodal design of graphite blocks by optimizing the weight ratio of small-sized natural graphite (NG) particles (mean size of 5 μm) and large-sized NG particles (mean...

    Byung Choon Kim, Joon Young Cho, Moon Hee Lee, Joong Tark Han… in SN Applied Sciences (2020)

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    Poly(phenylene sulfide)-graphite composites for bipolar plates with preferred morphological orientation

    Bipolar plates in phosphoric acid fuel cells require inertness to phosphoric acid as well as excellent electrical, thermal, and mechanical properties. For this application, we prepared poly(phenylene sulfide) ...

    Ho-Joon Park, Jong Seok Woo, Soo-Young Park in Korean Journal of Chemical Engineering (2019)

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    Article

    High-Throughput Fabrication of Silver Nanowire Networks That are Highly Stable under Current Flow by In Situ Interconnection with Single-Walled Carbon Nanotubes

    The junction resistance control of conducting networks is a crucial factor for high performance of the network-structured conducting film. Here, we show that silver nanowire (AgNW) networks can be stabilized b...

    Joong Tark Han, Jong Seok Woo, Sunshin Jung… in MRS Online Proceedings Library (2015)

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    Article

    The suppression of leakage current in the solid phase crystallized silicon (SPC-Si) TFT employing off-state bias annealing under light illumination

    We fabricated PMOS SPC-Si TFTs which show better current uniformity than ELA poly-Si TFTs and superior stability compare to a-Si:H TFT on a glass substrate employing alternating magnetic field crystallization....

    Sang-Geun Park, Seung-Hee Kuk, Jong-Seok Woo, Min-Koo Han in MRS Online Proceedings Library (2011)

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    Article

    High Haze and Low Resistive MgO/AZO Bi-layer Transparent Conducting Oxide for Thin Film Solar Cells

    We have propsed MgO/AZO bi-layer transparent conducting oxide (TCO) for thin film solar cells. From XRD analysis, it was observed that the full width at half maximum of AZO decreased when it was grown on MgO p...

    Dong Won Kang, Jong Seok Woo, Sung Hwan Choi… in MRS Online Proceedings Library (2011)