• Title/Summary/Keyword: Sungkyunkwan

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Fabrication of transparent conducting films of carbon nanotubes using a spray method

  • Geng, Hong Zhang;Lee, Kyu;Song, Young-Il;Kim, Gil-Yong;Choi, Ha-Kyu;Jun, Bae-Jung;Ahn, Kay-Hyeok;Lee, Young-Hee
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.525-528
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    • 2006
  • Transparent conducting films were fabricated on polyethylene terephthalate substrate by a spray method using double-walled carbon nanotubes dispersed in organic solvent and water-based solution. We analyzed the films by absorption spectra, sheet resistance, and scanning electron microscopy. Transparent conducting films with high uniformity and high transparency were fabricated by the spray method. We found that the dispersion particularly nanodispersion of CNTs was of crucial importance to improve the film performance.

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High-yield synthesis of thin multiwalled carbon nanotubes and their field emission characteristics

  • Jeong, Hee-Jin;Song, Young-Il;Choi, Ha-Kyu;Kim, Gil-Yong;Yu, Tong;Lim, Seong-Chu;Lee, Young-Hee
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1443-1446
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    • 2005
  • We have synthesized thin multi-walled carbon nanotubes (t-MWCNTs) using a catalytic chemical vapor deposition (CCVD) method with FeMoMgO catalyst. The number of tube walls were 2 ${\sim}$ 6 with the corresponding diameters of 3 ${\sim}$ 6 nm. We obtained high production yield of over 3000 wt% compared to the weight of the supplied catalyst. These t-MWCNTs revealed the intermediate structural characteristics between single- and multi-walled carbon nanotubes (SWCNTs and MWCNTs). We have also characterized the field emission properties such as turn-on field and emission current, and current degradation from these t-MWCNTs together with SWCNTs and MWCNTs.

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