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標題: Extraordinary mechanical flexibility in composite thin films composed of bimetallic AgPt nanoparticle-decorated multiwalled carbon nanotubes
作者: Ko, Wen-Yin
Su, Jun-Wei
Guo, Chian-Hua
Lin, Kuan-Jiuh
Project: Carbon, Volume 50, Page(s) 2244-2251.
Flexible, transparent, and conducting composite thin films, constructed from multi-walled
carbon-nanotube-supported silver–platinum alloy nanoparticles (AgPt–MWCNT) on a flexible
polyethylene terephthalate (PET) substrate through the combination of a two-step polyol
process for synthesizing composites of carbon nanotubes (CNTs) and metallic
nanoparticles (NPs) with an ultrasonic atomization-spin coating method for preparing thin
films, have been fabricated. AgPt NPs with an average size of approximately 26 nm were
uniformly attached to the sidewalls of MWCNTs to form an effective and strongly mechanical
conductive network. These composites were then exposed to microwave plasma irradiation,
which can lower the contact resistance between the metallic NPs and CNTs and
reinforce the network bridges. The resulting AgPt–MWCNT–PET thin films exhibit improved
optoelectronic and mechanical properties, and they possess a sheet resistance of 154 X/sq
with a transmittance of 80% at 550 nm. These values are competitive with those of most
other CNT-based films. Most importantly, the corresponding sheet conductivity does not
decrease even after 500 bending cycles. Therefore, the as-produced AgPt–MWCNT–PET
films may be direct alternatives to indium tin oxide and other transparent conducting
oxide films.
ISSN: 0008-6223
DOI: 10.1016/j.carbon.2012.01.042
Appears in Collections:化學系所

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