Single-Walled Carbon-Nanotube Networks on Large-Area Glass Substrate by the Dip-Coating Method

Authors

  • Eui Yun Jang,

    1. School of Mechanical and Aerospace Engineering Seoul National University San 56-1, Sillim-dong, Kwanak-gu Seoul 151-742 (Republic of Korea)
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  • Tae June Kang,

    1. School of Mechanical and Aerospace Engineering Seoul National University San 56-1, Sillim-dong, Kwanak-gu Seoul 151-742 (Republic of Korea)
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  • Hyeoung Wook Im,

    1. School of Mechanical and Aerospace Engineering Seoul National University San 56-1, Sillim-dong, Kwanak-gu Seoul 151-742 (Republic of Korea)
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  • Dae Weon Kim,

    1. School of Mechanical Engineering Pusan National University 30, Jangjeon-dong, Geumjeong-gu Busan 609-735 (Republic of Korea)
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  • Yong Hyup Kim

    Corresponding author
    1. School of Mechanical and Aerospace Engineering Seoul National University San 56-1, Sillim-dong, Kwanak-gu Seoul 151-742 (Republic of Korea)
    2. Institute of Advanced Aerospace Technology Seoul National University San 56-1, Sillim-dong, Kwanak-gu Seoul 151-742 (Republic of Korea)
    • School of Mechanical and Aerospace Engineering Seoul National University San 56-1, Sillim-dong, Kwanak-gu Seoul 151-742 (Republic of Korea).
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Abstract

Highly uniform and large-area single-walled carbon-nanotube (SWNT) networks are realized by the dip-coating method, which is based on fundamental fluid-dynamic phenomena such as capillary condensation and surface tension. The changes in the polarity and hydration properties of the substrate affect the morphology of the SWNT networks and result in nonlinear growth of the networks in the repetitive dip-coating process. The density and the thickness of the SWNT networks are controlled by processing variables including number of dip coatings, concentration of SWNT colloidal solution, and withdrawal velocity. The networks have uniform sheet resistances and high optical transmittance in the visible wavelength range.

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