Oriented nanomaterial air bridges formed from suspended polymer- Composite nanofibers

Santosh Pabba; Anton N. Sidorov; Scott M. Berry; Mehdi M. Yazdanpanah; Robert S. Keynton; Gamini U. Sumanasekera; Robert W. Cohn

doi:10.1021/nn700047n

Oriented nanomaterial air bridges formed from suspended polymer- Composite nanofibers

Santosh Pabba, Anton N. Sidorov, Scott M. Berry, Mehdi M. Yazdanpanah, Robert S. Keynton, Gamini U. Sumanasekera, Robert W. Cohn

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

24 Scopus citations

Abstract

In a two-step method, carbon nanotubes, inorganic nanowires, or graphene sheets are connected between two anchor points to form nanomaterial air bridges. First, a recently developed method of forming directionally oriented polymer nanofibers by hand-application is used to form suspended composite polymer- nanomaterial fibers. Then, the polymer is sacrificed by thermally induced depolymerization and vaporization, leaving air bridges of the various materials. Composite fibers and bundles of nanotubes as thin as 10 nm that span 1 μm gaps have been formed by this method. Comparable bridges are observed by electrospinning solutions of the same nanomaterial-polymer composites onto micrometer-scale corrugated surfaces. This method for assembling nanomaterial air-bridges provides a convenient way to suspend nanomaterials for mechanical and other property determinations, and for subsequent device fabrication built up from the suspended nanosubstrates.

Original language	English
Pages (from-to)	57-62
Number of pages	6
Journal	ACS Nano
Volume	1
Issue number	1
DOIs	https://doi.org/10.1021/nn700047n
State	Published - Aug 2007

Keywords

Grapheme
Nanofabrication
Nanomaterials
Nanostructures
Nanotubes
Nanowires
Polymer composites

ASJC Scopus subject areas

Materials Science (all)
Engineering (all)
Physics and Astronomy (all)

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10.1021/nn700047n

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title = "Oriented nanomaterial air bridges formed from suspended polymer- Composite nanofibers",

abstract = "In a two-step method, carbon nanotubes, inorganic nanowires, or graphene sheets are connected between two anchor points to form nanomaterial air bridges. First, a recently developed method of forming directionally oriented polymer nanofibers by hand-application is used to form suspended composite polymer- nanomaterial fibers. Then, the polymer is sacrificed by thermally induced depolymerization and vaporization, leaving air bridges of the various materials. Composite fibers and bundles of nanotubes as thin as 10 nm that span 1 μm gaps have been formed by this method. Comparable bridges are observed by electrospinning solutions of the same nanomaterial-polymer composites onto micrometer-scale corrugated surfaces. This method for assembling nanomaterial air-bridges provides a convenient way to suspend nanomaterials for mechanical and other property determinations, and for subsequent device fabrication built up from the suspended nanosubstrates.",

keywords = "Grapheme, Nanofabrication, Nanomaterials, Nanostructures, Nanotubes, Nanowires, Polymer composites",

author = "Santosh Pabba and Sidorov, {Anton N.} and Berry, {Scott M.} and Yazdanpanah, {Mehdi M.} and Keynton, {Robert S.} and Sumanasekera, {Gamini U.} and Cohn, {Robert W.}",

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language = "English",

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AU - Pabba, Santosh

AU - Sidorov, Anton N.

AU - Berry, Scott M.

AU - Yazdanpanah, Mehdi M.

AU - Keynton, Robert S.

AU - Sumanasekera, Gamini U.

AU - Cohn, Robert W.

PY - 2007/8

Y1 - 2007/8

N2 - In a two-step method, carbon nanotubes, inorganic nanowires, or graphene sheets are connected between two anchor points to form nanomaterial air bridges. First, a recently developed method of forming directionally oriented polymer nanofibers by hand-application is used to form suspended composite polymer- nanomaterial fibers. Then, the polymer is sacrificed by thermally induced depolymerization and vaporization, leaving air bridges of the various materials. Composite fibers and bundles of nanotubes as thin as 10 nm that span 1 μm gaps have been formed by this method. Comparable bridges are observed by electrospinning solutions of the same nanomaterial-polymer composites onto micrometer-scale corrugated surfaces. This method for assembling nanomaterial air-bridges provides a convenient way to suspend nanomaterials for mechanical and other property determinations, and for subsequent device fabrication built up from the suspended nanosubstrates.

AB - In a two-step method, carbon nanotubes, inorganic nanowires, or graphene sheets are connected between two anchor points to form nanomaterial air bridges. First, a recently developed method of forming directionally oriented polymer nanofibers by hand-application is used to form suspended composite polymer- nanomaterial fibers. Then, the polymer is sacrificed by thermally induced depolymerization and vaporization, leaving air bridges of the various materials. Composite fibers and bundles of nanotubes as thin as 10 nm that span 1 μm gaps have been formed by this method. Comparable bridges are observed by electrospinning solutions of the same nanomaterial-polymer composites onto micrometer-scale corrugated surfaces. This method for assembling nanomaterial air-bridges provides a convenient way to suspend nanomaterials for mechanical and other property determinations, and for subsequent device fabrication built up from the suspended nanosubstrates.

KW - Grapheme

KW - Nanofabrication

KW - Nanomaterials

KW - Nanostructures

KW - Nanotubes

KW - Nanowires

KW - Polymer composites

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JO - ACS Nano

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ER -

Oriented nanomaterial air bridges formed from suspended polymer- Composite nanofibers

Abstract

Keywords

ASJC Scopus subject areas

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