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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la1013158
|2 doi
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|a pubmed24n0662.xml
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|a eng
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| 100 |
1 |
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|a Burg, Brian R
|e verfasserin
|4 aut
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| 245 |
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|a Selective parallel integration of individual metallic single-walled carbon nanotubes from heterogeneous solutions
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 30.09.2010
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|a Date Revised 30.06.2010
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The dielectrophoretic separation of individual metallic single-walled carbon nanotubes (SWNTs) from heterogeneous solutions and their simultaneous deposition between electrodes is achieved and confirmed by direct electric transport measurements. Out-of-solution guided parallel assembly of individual SWNTs was investigated for electric field frequencies between 1 and 200 MHz. At 200 MHz, 19 of the 22 deposited SWNTs (86%) displayed metallic behavior, whereas at lower frequencies the expected random growth distribution of 1/3 metallic SWNTs prevailed. A threshold separation frequency of 188 MHz is extracted from a surface-conductivity model, and a conductivity weighting factor is introduced to elucidate the separation frequency dependence. Low-frequency experiments and numerical simulations show that long-range nanotube transport is governed by hydrodynamic effects whereas local trapping is dominated by dielectrophoretic forces. The electrokinetic framework of dielectrophoresis in low-concentration solutions is thus provided and allows a deeper understanding of the underlying mechanisms in dielectrophoretic deposition processes for long and large-diameter SWNT-based low-resistance device integration
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|a Journal Article
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1 |
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|a Schneider, Julian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bianco, Vincenzo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schirmer, Niklas C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Poulikakos, Dimos
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 13 vom: 06. Juli, Seite 10419-24
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|x 1520-5827
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| 773 |
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|g volume:26
|g year:2010
|g number:13
|g day:06
|g month:07
|g pages:10419-24
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| 856 |
4 |
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|u http://dx.doi.org/10.1021/la1013158
|3 Volltext
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