Patterning colloidal metal nanoparticles for controlled growth of carbon nanotubes

Bing Li; Chin Foo Goh; Xiaozhu Zhou; Gang Lu; Hosea Tantang; Yanhong Chen; Can Xue; Freddy Y.C. Boey; Hua Zhang

doi:10.1002/adma.200802306

Patterning colloidal metal nanoparticles for controlled growth of carbon nanotubes

Bing Li^*, Chin Foo Goh, Xiaozhu Zhou, Gang Lu, Hosea Tantang, Yanhong Chen, Can Xue, Freddy Y.C. Boey, Hua Zhang

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

74 Citations (Scopus)

Abstract

A method using dip-pen nanolithography (DPN) to generate patterns of cobalt nanoparticles with feature sizes ranging from micrometers to sub-70 nm was reported. Atomic force microscopy (AFM) images of dot and line patterns of Co NPs are found to generate DPN on cleaned Si/SiO_x substrates. The results show that despite the sub-70 nm dots generated by DPN, the growth of CNTs on small patterns is nonuniform, low-yield, and more difficult to control. The catalyst NP on its tip side collides with another NP on the surface, to form a bigger particle. The Co NP catalyst is observed at the root end of the CNT in the DPN-patterned area, proving that the base-growth mechanism of CNTs. It is also found that the availability of massively parallel DPN systems offer the possibility of rapid production of large-area catalyst patterns.

Original language	English
Pages (from-to)	4873-4878
Number of pages	6
Journal	Advanced Materials
Volume	20
Issue number	24
DOIs	https://doi.org/10.1002/adma.200802306
Publication status	Published - Dec 17 2008
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.200802306

Cite this

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title = "Patterning colloidal metal nanoparticles for controlled growth of carbon nanotubes",

abstract = "A method using dip-pen nanolithography (DPN) to generate patterns of cobalt nanoparticles with feature sizes ranging from micrometers to sub-70 nm was reported. Atomic force microscopy (AFM) images of dot and line patterns of Co NPs are found to generate DPN on cleaned Si/SiOx substrates. The results show that despite the sub-70 nm dots generated by DPN, the growth of CNTs on small patterns is nonuniform, low-yield, and more difficult to control. The catalyst NP on its tip side collides with another NP on the surface, to form a bigger particle. The Co NP catalyst is observed at the root end of the CNT in the DPN-patterned area, proving that the base-growth mechanism of CNTs. It is also found that the availability of massively parallel DPN systems offer the possibility of rapid production of large-area catalyst patterns.",

author = "Bing Li and Goh, {Chin Foo} and Xiaozhu Zhou and Gang Lu and Hosea Tantang and Yanhong Chen and Can Xue and Boey, {Freddy Y.C.} and Hua Zhang",

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T1 - Patterning colloidal metal nanoparticles for controlled growth of carbon nanotubes

AU - Li, Bing

AU - Goh, Chin Foo

AU - Zhou, Xiaozhu

AU - Lu, Gang

AU - Tantang, Hosea

AU - Chen, Yanhong

AU - Xue, Can

AU - Boey, Freddy Y.C.

AU - Zhang, Hua

PY - 2008/12/17

Y1 - 2008/12/17

N2 - A method using dip-pen nanolithography (DPN) to generate patterns of cobalt nanoparticles with feature sizes ranging from micrometers to sub-70 nm was reported. Atomic force microscopy (AFM) images of dot and line patterns of Co NPs are found to generate DPN on cleaned Si/SiOx substrates. The results show that despite the sub-70 nm dots generated by DPN, the growth of CNTs on small patterns is nonuniform, low-yield, and more difficult to control. The catalyst NP on its tip side collides with another NP on the surface, to form a bigger particle. The Co NP catalyst is observed at the root end of the CNT in the DPN-patterned area, proving that the base-growth mechanism of CNTs. It is also found that the availability of massively parallel DPN systems offer the possibility of rapid production of large-area catalyst patterns.

AB - A method using dip-pen nanolithography (DPN) to generate patterns of cobalt nanoparticles with feature sizes ranging from micrometers to sub-70 nm was reported. Atomic force microscopy (AFM) images of dot and line patterns of Co NPs are found to generate DPN on cleaned Si/SiOx substrates. The results show that despite the sub-70 nm dots generated by DPN, the growth of CNTs on small patterns is nonuniform, low-yield, and more difficult to control. The catalyst NP on its tip side collides with another NP on the surface, to form a bigger particle. The Co NP catalyst is observed at the root end of the CNT in the DPN-patterned area, proving that the base-growth mechanism of CNTs. It is also found that the availability of massively parallel DPN systems offer the possibility of rapid production of large-area catalyst patterns.

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Patterning colloidal metal nanoparticles for controlled growth of carbon nanotubes

Abstract

ASJC Scopus Subject Areas

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