Journal Article FZJ-2014-06243

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Directed Immobilization of Janus-AuNP in Heterometallic Nanogaps: a Key Step Toward Integration of Functional Molecular Units in Nanoelectronics

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2014
Soc. Washington, DC

The journal of physical chemistry <Washington, DC> / C 118(46), 27142 - 27149 () [10.1021/jp5085179]

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Abstract: Forming reliable and reproducible molecule−nanoelectrodecontacts is one of the key issues for the implementation of nanoparticles asfunctional units into nanoscale devices. Utilizing heterometallic electrodes andJanus-type nanoparticles equipped with molecules allowing selective bindingto a distinct electrode material represents a promising approach to achievethis goal. Here, the directed immobilization of individual Janus-type goldnanoparticles (AuNP) between heterometallic electrodes leading to theformation of asymmetric contacts in a highly controllable way is presented.The Janus-AuNP are stabilized by two types of ligands with different terminalgroups on opposite hemispheres. The heterometallic nanoelectrode gaps areformed by electron beam lithography in combination with a self-alignmentprocedure and are adjusted to the size of the Janus-AuNP. Thus, by choosingadequate molecular end group/metal combinations, the immobilizationdirection of the Janus-AuNP is highly controllable. These results demonstratethe striking potential of this approach for the building-up of novel nanoscale organic/inorganic hybrid architectures.

Classification:

Contributing Institute(s):
  1. Elektronische Materialien (PGI-7)
Research Program(s):
  1. 424 - Exploratory materials and phenomena (POF2-424) (POF2-424)

Appears in the scientific report 2014
Database coverage:
Medline ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
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Dokumenttypen > Aufsätze > Zeitschriftenaufsätze
Institutssammlungen > PGI > PGI-7
Workflowsammlungen > Öffentliche Einträge
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