Fabrication and characterization of suspended single-walled carbon nanotubes |
| |
Authors: | Byung Seok Oh Eun Ju Bae Young Keun Kim |
| |
Institution: | a Department of Materials Science and Engineering, Korea University, Anam-Dong 5-1, Seongbuk-Gu, Seoul 136-713, Republic of Korea b Materials & Devices Research Center, Samsung Advanced Institute of Technology, Yongin-City, Gyeonggi-Do 449-712, Republic of Korea |
| |
Abstract: | Suspended single-walled carbon nanotubes (SWCNTs) between SiO2 pillars via a direct lithographic route using a simple mixture of catalyst precursor Co(III) acetylacetonate, Co(acac)3] and conventional electron beam resist (ma-N2403) were fabricated. The catalytic electron beam resist (Cat-ER) layer plays dual roles as a catalyst and a resist layer for the growth and alignment of CNTs, respectively. The structure of the grown nanotube was characterized by Raman spectroscopy (633 nm laser excitation). Nanotubes grown from Cat-ER with Co(acac)3 show the typical Raman spectra of SWCNTs which are characterized by the strong tangential bands near to 1590 cm−1 and radial breathing modes (RBMs) in the low frequency region (<300 cm−1). The calculated diameter of the probed nanotubes individually corresponds to the range 0.86-1.77 nm. |
| |
Keywords: | 81 07 De 81 16 Rf 87 64 Je |
本文献已被 ScienceDirect 等数据库收录! |
|