Fast In-Situ Optical Visualization of Carbon Nanotubes Assisted by Smoke

Run Li; Qinyuan Jiang; Fei Wang; Xiaofei Shi; Fengxiang Chen; Ya Huang; Baoshun Wang; Wenshuo Zhang; Xueke Wu; Fei Wei; Rufan Zhang

doi:10.1002/smtd.202101333

Fast In-Situ Optical Visualization of Carbon Nanotubes Assisted by Smoke

Small Methods. 2022 Jan;6(1):e2101333. doi: 10.1002/smtd.202101333. Epub 2021 Dec 2.

Authors

Run Li¹, Qinyuan Jiang¹, Fei Wang¹, Xiaofei Shi¹, Fengxiang Chen¹, Ya Huang¹, Baoshun Wang¹, Wenshuo Zhang¹, Xueke Wu¹, Fei Wei¹, Rufan Zhang¹

Affiliation

¹ Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.

PMID: 35041276
DOI: 10.1002/smtd.202101333

Abstract

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.

Keywords: carbon nanotubes; optical observations; smoke.

Abstract

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