抄録
Field emission properties of carbon nanotubes (CNTs) were comparatively evaluated by using combinatorial CNT libraries. The libraries were prepared by combinatorial masked deposition of a Co catalytic layer on Al2O 3/Si substrates and subsequent CNT growth by chemical vapor deposition from ethanol. Each library reproduced various types of single- and multiwalled carbon nanotubes with different morphologies and a variety of field emission properties. Combinatorial evaluations immediately identified the CNTs preferable as field emitters. The results obtained from individual field emission evaluations for samples with a constant nominal Co thickness agreed well with the results obtained from comparative evaluations for combinatorial CNT libraries. The results revealed that protrusive single-walled carbon nanotubes with a moderate interspacing showed the best field emission properties.
本文言語 | English |
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ページ(範囲) | 17974-17982 |
ページ数 | 9 |
ジャーナル | Journal of Physical Chemistry C |
巻 | 112 |
号 | 46 |
DOI | |
出版ステータス | Published - 2008 11月 20 |
外部発表 | はい |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- エネルギー(全般)
- 物理化学および理論化学
- 表面、皮膜および薄膜