期刊
SMALL METHODS
卷 6, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smtd.202101333
关键词
carbon nanotubes; optical observations; smoke
资金
- National Natural Science Foundation of China [51872156, 22075163]
- National Key Research and Development Program [2020YFC2201103, 2020YFA0210702]
A fast and simple method using tar nanodroplets from smoke allows for the optical observation of individual suspended CNTs and CNT networks under conventional optical microscopes. This visualization approach is environmentally friendly, cost-effective, and easy to operate.
The fast visualization and manipulation of individual carbon nanotubes (CNTs) has always been a significant technology for their fundamental research. Here, a fast and facile approach is proposed to realize the optical observation of individual suspended CNTs and CNT networks under conventional optical microscopes with the assistance of tar nanodroplets from smoke. The nanodroplets deposited on CNTs render them with strong light scattering to visible light, thus making the CNTs visible under optical microscopes. This visualization method is controllable, environmentally friendly, low-cost, and can be completed in just a few seconds in ambient conditions. Besides, the tar nanodroplets can be easily removed from the CNTs by laser irradiation. More importantly, the smoke sources are widely available and there are no strict requirements for operating conditions. This smoke-assisted visualization method shows great potential in the fundamental research of CNTs.
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