In situ observation of carbon nanotube yarn during voltage application

Tomoharu Tokunaga; Yasuhiko Hayashi; Toru Iijima; Yuki Uesugi; Masaki Unten; Katsuhiro Sasaki; Takahisa Yamamoto

doi:10.1016/j.micron.2015.04.004

In situ observation of carbon nanotube yarn during voltage application

Tomoharu Tokunaga, Yasuhiko Hayashi, Toru Iijima, Yuki Uesugi, Masaki Unten, Katsuhiro Sasaki, Takahisa Yamamoto

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

Carbon nanotube (CNT) yarns are fabricated by drawing (combined with spinning) from CNT forests and grown on a substrate. Three types of phenomena occur in these CNT yarns with increasing amounts of current: yarn rotation, catalyst evaporation, and breakage of the yarn. These phenomena result from the resistive heating occurring during the current flow, and have been observed in situ under vacuum by transmission electron microscopy. If these CNT yarns are applied to electronic circuits, the rotation and breakage may lead to circuit failure. However, catalyst evaporation is a useful method for purifying CNT yarns without additional treatments prior to yarn fabrication.

Original language	English
Pages (from-to)	30-34
Number of pages	5
Journal	Micron
Volume	74
DOIs	https://doi.org/10.1016/j.micron.2015.04.004
Publication status	Published - Jul 1 2015

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Keywords

Current
In situ TEM
Nanotube
Voltage
Yarn

ASJC Scopus subject areas

Cell Biology
Structural Biology

Cite this

Tokunaga, T., Hayashi, Y., Iijima, T., Uesugi, Y., Unten, M., Sasaki, K., & Yamamoto, T. (2015). In situ observation of carbon nanotube yarn during voltage application. Micron, 74, 30-34. https://doi.org/10.1016/j.micron.2015.04.004

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abstract = "Carbon nanotube (CNT) yarns are fabricated by drawing (combined with spinning) from CNT forests and grown on a substrate. Three types of phenomena occur in these CNT yarns with increasing amounts of current: yarn rotation, catalyst evaporation, and breakage of the yarn. These phenomena result from the resistive heating occurring during the current flow, and have been observed in situ under vacuum by transmission electron microscopy. If these CNT yarns are applied to electronic circuits, the rotation and breakage may lead to circuit failure. However, catalyst evaporation is a useful method for purifying CNT yarns without additional treatments prior to yarn fabrication.",

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AU - Sasaki, Katsuhiro

AU - Yamamoto, Takahisa

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AB - Carbon nanotube (CNT) yarns are fabricated by drawing (combined with spinning) from CNT forests and grown on a substrate. Three types of phenomena occur in these CNT yarns with increasing amounts of current: yarn rotation, catalyst evaporation, and breakage of the yarn. These phenomena result from the resistive heating occurring during the current flow, and have been observed in situ under vacuum by transmission electron microscopy. If these CNT yarns are applied to electronic circuits, the rotation and breakage may lead to circuit failure. However, catalyst evaporation is a useful method for purifying CNT yarns without additional treatments prior to yarn fabrication.

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10.1016/j.micron.2015.04.004