Observation of single-walled carbon nanotubes by photoemission microscopy

被引:9
作者
Suzuki, S [1 ]
Watanabe, Y
Ogino, T
Homma, Y
Takagi, D
Heun, S
Gregoratti, L
Barinov, A
Kiskinova, M
机构
[1] NTT Corp, NTT Basic Res Labs, Surface Sci Res Grp, Atsugi, Kanagawa 2430198, Japan
[2] Meiji Univ, Dept Phys, Atsugi, Kanagawa 2148571, Japan
[3] Sincrotrone Trieste, I-34012 Trieste, Italy
关键词
carbon nanotubes; chemical vapor deposition; X-ray photoelectron spectroscopy; electronic properties;
D O I
10.1016/j.carbon.2003.12.056
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Single-walled carbon nanotube networks grown on SiO2 pillars were studied by means of scanning photoemission microscopy. The individual nanotubes or nanotube bundles growing from the pillar tops were observed in C 1s images. Band bending near catalytic Fe/nanotube contacts in an end-bonded configuration was studied by measuring C 1s spectra along the tube axes. Within our experimental resolution, no band bending was observed. This implies that the depletion width is less than the spatial resolution of the scanning photoemission microscope (90 nm) or that the amount of the band bending is less than 0.1 eV. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:559 / 563
页数:5
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