Aligned Single-Walled Carbon Nanotube Arrays on Patterned SiO2/Si Substrates

Autor: Kazuhiko Matsumoto, Takaomi Kishimoto, Shin Iwasaki, Yasuhide Ohno, Koichi Inoue, Kenzo Maehashi
Rok vydání: 2010
Předmět:
Zdroj: Japanese Journal of Applied Physics. 49:06GK01
ISSN: 1347-4065
0021-4922
DOI: 10.1143/jjap.49.06gk01
Popis: Horizontally aligned single-walled carbon nanotubes (SWNTs) were fabricated on patterned SiO2/Si substrates with groove-and-terrace or half-cylinder structures by electron-beam lithography and reactive ion etching. Scanning electron microscopy observation reveals that the SWNTs were aligned in the direction parallel to the patterned structures and were preferentially grown along the edges of terraces or along the sidewalls of the half cylinders. The results are consistent with calculations obtained using the Casimir–Polder potential between the SWNTs and the patterned substrates. This method will be promising to control the directions of the SWNTs on SiO2/Si substrates.
Databáze: OpenAIRE