%0 Journal Article
%A Babajani, Ninet
%A Kaulen, Corinna
%A Homberger, Melanie
%A Mennicken, Max
%A Waser, Rainer
%A Simon, Ulrich
%A Karthäuser, Silvia
%T Directed Immobilization of Janus-AuNP in Heterometallic Nanogaps: a Key Step Toward Integration of Functional Molecular Units in Nanoelectronics
%J The journal of physical chemistry  / C
%V 118
%N 46
%@ 1932-7455
%C Washington, DC
%I Soc.
%M FZJ-2014-06243
%P 27142 - 27149
%D 2014
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000345474000082
%R 10.1021/jp5085179
%U https://juser.fz-juelich.de/record/172802