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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b01633
|2 doi
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|a eng
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| 100 |
1 |
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|a Boehm, Sarah J
|e verfasserin
|4 aut
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|a Formation and frequency response of two-dimensional nanowire lattices in an applied electric field
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 29.07.2015
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|a Date Revised 02.06.2015
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Ordered two-dimensional (2D) lattices were formed by assembling silica-coated solid and segmented Au nanowires between coplanar electrodes using alternating current (ac) electric fields. Dielectrophoretic forces from the ac field concentrated wires between the electrodes, with their long axis aligned parallel to the field lines. After reaching a sufficient particle density, field-induced dipolar interactions resulted in the assembly of dense 2D lattices that spanned the electrodes, a distance of at least ten wire lengths. The ends of neighboring Au wires or segments overlapped a fraction of their length to form lattice structures with a "running bond" brickwork-like pattern. The observed lattice structures were tunable in three distinct ways: (1) particle segmentation pattern, which fixed the lattice periodicity for a given field condition; (2) ac frequency, which varied lattice periodicity in real time; and (3) switching the field on/off, which converted between lattice and smectic particle organizations. Electric field simulations were performed to understand how the observed lattice periodicity depends on the assembly conditions and particle segmentation. Directed self-assembly of well-ordered 2D metallic nanowire lattices that can be designed by Au striping pattern and reconfigured by changes in field conditions could enable new types of switchable optical or electronic devices
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|a Journal Article
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|a Lin, Lan
|e verfasserin
|4 aut
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|a Guzmán Betancourt, Kimberly
|e verfasserin
|4 aut
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| 700 |
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|a Emery, Robyn
|e verfasserin
|4 aut
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| 700 |
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|a Mayer, Jeffrey S
|e verfasserin
|4 aut
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| 700 |
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|a Mayer, Theresa S
|e verfasserin
|4 aut
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| 700 |
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|a Keating, Christine D
|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 1999
|g 31(2015), 21 vom: 02. Juni, Seite 5779-86
|w (DE-627)NLM098181009
|x 1520-5827
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| 773 |
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|g volume:31
|g year:2015
|g number:21
|g day:02
|g month:06
|g pages:5779-86
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|u http://dx.doi.org/10.1021/acs.langmuir.5b01633
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