期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 10, 期 12, 页码 8151-8157出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2010.3014
关键词
Single-Walled Carbon Nanotubes; Carbon Nanotube Films; Transparent Conductors; Sheet Resistance; Heat Dissipation
类别
资金
- NSERC
- Canada Foundation
- Atlantic Innovation Fund
- Institute for Research in Materials at Dalhousie University
- Killam Trusts
- Sumner Foundation
Single-walled carbon nanotube films are promising candidates for applications requiring transparent conductors due to their low sheet resistance and high transparency in the visible region. Vacuum filtration is a common and easy to implement technique to produce such films but it is complicated by the need to transfer the films to desired substrates. Here we report conditions under which single-walled carbon nanotube films produced by vacuum filtration detach from the filter membrane upon submersion into water, providing a facile method to transfer filtration-produced nanotube films to desired substrates. Sheet resistance and transparency measurements show that these films are competitive with other high conductivity films made through more cumbersome procedures. Films post-treated with nitric acid or made with acid pre-treated nanotubes have superior performance to those made with high-purity nanotubes without any acid treatment. Thermal imaging by scanning thermal microscopy indicates that heat dissipation by the film is comparable to that of a glass substrate.
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