Formation of graphite layers during carbon nanotubes growth

被引：6

作者：

Baek, YG ^{[1
]}

Honda, SI ^{[1
]}

Ikuno, T ^{[1
]}

Ohkura, S ^{[1
]}

Katayama, M ^{[1
]}

Hirao, T ^{[1
]}

Oura, K ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Elect Engn, Suita, Osaka 5650871, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2003年 / 42卷 / 2A期

关键词：

graphite layers; carbon nanotubes; cross-sectional analysis; Fe-Ni large islands;

D O I：

10.1143/jjap.42.579

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated carbon products deposited on large catalyst islands during carbon nanotube growth by thermal chemical vapor deposition on a Fe-Ni catalyst film, using cross-sectional analysis by transmission electron microscopy and scanning electron microscopy. It was found that carbon atoms covering on the surface of Fe-Ni large islands form graphite layers with high crystallinity at a temperature as low as 700degreesC. The growth mechanism of the graphite layers can be explained in terms of precipitation of diffused carbon atoms from the inside of large catalyst islands.

引用

页码：579 / 581

页数：3

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