Growth of fullerene-like carbon nitride thin solid films consisting of cross-linked nano-onions

被引:39
作者
Czigány, Z
Brunell, IF
Neidhardt, J
Hultman, L
Suenaga, K
机构
[1] Linkoping Univ, Dept Phys, S-58183 Linkoping, Sweden
[2] Meijo Univ, JST, Nagoya, Aichi 4688502, Japan
关键词
D O I
10.1063/1.1412596
中图分类号
O59 [应用物理学];
学科分类号
摘要
Fullerene-like CNx (x approximate to0.12) thin solid films were deposited by reactive magnetron sputtering of graphite in a nitrogen and argon discharge on cleaved NaCl and Si(001) substrates at 450 degreesC. As-deposited films consist of 5 nm diam CNx nano-onions with shell sizes corresponding to Goldberg polyhedra determined by high-resolution transmission electron microscopy. Electron energy loss spectroscopy revealed that N incorporation is higher in the core of the onions than at the perimeter. N incorporation promotes pentagon formation and provides reactive sites for interlinks between shells of the onions. A model is proposed for the formation of CNx nano-onions by continuous surface nucleation and growth of hemispherical shells. (C) 2001 American Institute of Physics.
引用
收藏
页码:2639 / 2641
页数:3
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