Performance-determining factors in flexible transparent conducting single-wall carbon nanotube film

Title
Performance-determining factors in flexible transparent conducting single-wall carbon nanotube film
Authors
송영일이정우김태유정환중정용채서수정양철민
Keywords
Carbon Nanotube; dip coating method; Transparent Conducting Film; single-wall carbon nanotube
Issue Date
2013-10
Publisher
Carbon Letters
Citation
VOL 14, NO 4, 255-258
Abstract
Flexible transparent conducting films (TCFs) were fabricated by dip-coating single-wall carbon nanotubes (SWCNTs) onto a flexible polyethylene terephthalate (PET) film. The amount of coated SWCNTs was controlled simply by dipping number. Because the performance of SWCNT-based TCFs is influenced by both electrical conductance and optical transmittance, we evaluated the film performance by introducing a film property factor using both the number of interconnected SWCNT bundles at intersection points, and the coverage of SWCNTs on the PET substrate, in field emission scanning electron microscopic images. The microscopic film property factor was in an excellent agreement with the macroscopic one determined from electrical conductance and optical transmittance measurements, especially for a small number of dippings. Therefore, the most crucial factor governing the performance of the SWCNT-based TCFs is a SWCNT-network structure with a large number of intersection points for a minimum amount of deposited SWCNTs.
URI
http://pubs.kist.re.kr/handle/201004/46613
ISSN
19764251
Appears in Collections:
KIST Publication > Article
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