TY  - JOUR
AU  - Babajani, Ninet
AU  - Kaulen, Corinna
AU  - Homberger, Melanie
AU  - Mennicken, Max
AU  - Waser, Rainer
AU  - Simon, Ulrich
AU  - Karthäuser, Silvia
TI  - Directed Immobilization of Janus-AuNP in Heterometallic Nanogaps: a Key Step Toward Integration of Functional Molecular Units in Nanoelectronics
JO  - The journal of physical chemistry  / C
VL  - 118
IS  - 46
SN  - 1932-7455
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2014-06243
SP  - 27142 - 27149
PY  - 2014
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000345474000082
DO  - DOI:10.1021/jp5085179
UR  - https://juser.fz-juelich.de/record/172802
ER  -