Decreasing Work Function of Carbon Nanotubes Hydrogenated in Hydrogen Plasma
Abstract
Experimental data showing a decrease in the work function of carbon nanotube (CNT) bundles and arrays hydrogenated in hydrogen-containing plasma are presented. This plasma treatment leads to hydrogen chemisorption on CNTs, which results in a work-function decrease from 4.8 to 3.3 eV. The experimental data confirm quantum-mechanical calculations for single-walled CNTs of variable chirality. Calculations indicate that a decrease in the CNT work function depends on both the properties of CNT and the degree of its passivation by hydrogen.
- Publication:
-
Technical Physics Letters
- Pub Date:
- May 2018
- DOI:
- 10.1134/S1063785018050164
- Bibcode:
- 2018TePhL..44..432B