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Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing.
- Source :
- C; Mar2022, Vol. 8 Issue 1, p1, 13p
- Publication Year :
- 2022
-
Abstract
- We report the effect of annealing, both electrical and by applied voltage, on the electrical conductivity of fibers spun from carbon nanotubes (CNTs). Commercial CNT fibers were used as part of a larger goal to better understand the factors that go into making a better electrical conductor from CNT fibers. A study of thermal annealing in a vacuum up to 800 °C was performed on smaller fiber sections along with a separate analysis of voltage annealing up to 7 VDC; both exhibited a sweet spot in the process as determined by a combination of a two-point probe measurement with a nanoprobe, resonant Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Scaled-up tests were then performed in order to translate these results into bulk samples inside a tube furnace, with similar results that indicate the potential for an optimized method of achieving a better conductor sample made from CNT fibers. The results also help to determine the surface effects that need to be overcome in order to achieve this. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23115629
- Volume :
- 8
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- C
- Publication Type :
- Academic Journal
- Accession number :
- 155980695
- Full Text :
- https://doi.org/10.3390/c8010001