Transparent conducting film: Effect of vacuum filtration of carbon nanotube suspended in oleum

Bulletin of materials science

David Lashmore²  H Thomas Hahn³  Hansang Kim¹  Tsuyoshi Saotome¹  Zhe Wang¹ 

[1] UCLA Mechanical and Aerospace Engineering Department, Multifunctional Composites Laboratory, Los Angeles CA 90095, USA$$UCLA Mechanical and Aerospace Engineering Department, Multifunctional Composites Laboratory, Los Angeles CA 90095, USAUCLA Mechanical and Aerospace Engineering Department, Multifunctional Composites Laboratory, Los Angeles CA 90095, USA$$;Nanocomp Technologies, Inc., 162 Pembroke Road, Concord, NH 03301$$Nanocomp Technologies, Inc., 162 Pembroke Road, Concord, NH 03301Nanocomp Technologies, Inc., 162 Pembroke Road, Concord, NH 03301$$;California Nano Systems Institute, 570 Westwood Plaza, Building 114, Los Angeles CA 90095, USA$$California Nano Systems Institute, 570 Westwood Plaza, Building 114, Los Angeles CA 90095, USACalifornia Nano Systems Institute, 570 Westwood Plaza, Building 114, Los Angeles CA 90095, USA$$

关键词: Transparent conducting film;    carbon nanotube;    oleum.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Vacuum filtration process to fabricate a transparent conducting carbon nanotube (CNT) film is reported. A CNT mat, which is a fibrous sheet of long multi-walled carbon nanotubes (MWNT), was prepared and dispersed in oleum by solution-sonication. The suspension was then vacuum filtered to obtain a thin MWNT layer with improved dispersion. Sheet resistance of the obtained MWNT layer was increased despite the improved dispersion. SEM micrographs and energy dispersive spectroscopy results indicated that the increase of the sheet resistance could be attributed to degradation and oxidation of the MWNT bundles. Though the chemical approach in this study did not improve the electrical property of the CNT mat, a mechanical approach proposed in our recent work was deemed suitable to enhance optical and electrical properties of the CNT mat.

【 授权许可】

Unknown