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Lee, Chang Young
Carbon Nanomaterials Lab
Research Interests
  • Carbon nanomaterials, gas sensors, neuroanalytical chemistry, biomimetic nanosystems

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Nanometer positioning, parallel alignment, and placement of single anisotropic nanoparticles using hydrodynamic forces in cylindrical droplets

Cited 43 times inthomson ciCited 47 times inthomson ci
Title
Nanometer positioning, parallel alignment, and placement of single anisotropic nanoparticles using hydrodynamic forces in cylindrical droplets
Other Titles
Nanometer positioning, parallel alignment, and placement of single anisotropic nanoparticles using hydrodynamic forces in cylindrical droplets
Author
Sharma, RichaLee, Chang YoungChoi, Jong HyunChen, KejiaStrano, Michael S.
Keywords
WALLED CARBON NANOTUBES; EVAPORATION; DROPS; INTERCONNECTS; ORIENTATION; INTEGRATION; TRANSISTORS; MONOLAYERS; SURFACES; DEVICES
Issue Date
2007-09
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.7, no.9, pp.2693 - 2700
Abstract
Droplets of liquid drying on a surface with pinned contact area develop an internal hydrodynamic flow that carries entrained particles to the air-liquid-substrate interface. We use this phenomenon in cylindrical, micrometer-sized droplets of large aspect ratio (more than 1000:1) to align, position, and place individual anisotropic nanostructures such as single-walled carbon nanotubes (SWNT). More than 84% of SWNT are aligned in parallel within 50 relative to the target axis of alignment. A potential flow model accurately describes and quantifies the statistical variation in the positioning of the nanostructures. We demonstrate for the first time the top-down parallel alignment and placement of individual (unbundled) nanotubes from solution electrically contacted across gold electrodes
URI
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DOI
10.1021/nl0711211
ISSN
1530-6984
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ECHE_Journal Papers
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