Selective growth of double-walled carbon nanotubes on gold films
Journal article, 2012

Growth of high-quality vertical aligned carbon nanotube (CNT) structures on silicon supported gold (Au) films by thermal chemical vapor deposition (TCVD) is presented. Transmission electron microscopy (TEM) images show that the growth is highly selective. Statistical study reveals that 79.4% of the as-grown CNTs are double-walled. The CNTs synthesized on Au films are more porous than that synthesized on silicon substrates under the same conditions. Raman spectroscopy and electrical characterization performed on the as-grown double-walled CNTs (DWNTs) indicate that they are competitive with those CNTs grown on silicon substrates. Field emission tests show that closed-ended DWNTs have lower threshold field than those open-ended.

Gold film

Selective growth

buckypaper

catalytic decomposition

emission

Carbon nanotubes

Double-walled

Field

Author

Yifeng Fu

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Si Chen

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Johan Bielecki

Chalmers, Applied Physics, Condensed Matter Physics

Aleksandar Matic

Chalmers, Applied Physics, Condensed Matter Physics

Teng Wang

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

L. Ye

SHT Smart High-Tech

Johan Liu

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Materials Letters

0167-577X (ISSN)

Vol. 72 78-80

Subject Categories

Materials Engineering

DOI

10.1016/j.matlet.2011.12.026

More information

Latest update

3/7/2018 7