Beilstein J. Nanotechnol.2016,7, 2057–2064, doi:10.3762/bjnano.7.196
solution containing conjugated thiol-functionalized molecules. Typically, this observation is attributed to molecularexchange. Less attention has been paid to the role of the solvent alone. Here, we report on an increase in conductance of dodecanethiol-stabilized gold nanoparticle monolayers on Si/SiO2 by
conductance of the monolayer after molecularexchange with two different oligophenylenes to shed light on the respective contribution of the solvent-induced structural change and the molecularexchange itself on the conductance increase.
Keywords: molecular electronics; molecularexchange; percolation
solution containing conjugated molecules [3][5][6][7][13]. So far, the observed overall change in conductivity has been interpreted in terms of a molecularexchange and little or no attention has been paid to the role of the solvent itself on this effect.
In the following, we demonstrate that the solvent
PDF
Figure 1:
(a) Current–voltage relation of 20 µm × 10 µm gold nanoparticle monolayer before (black) and after ...
Beilstein J. Nanotechnol.2014,5, 1664–1674, doi:10.3762/bjnano.5.177
molecularexchange [9][30]. We note that the latter type of arrays does contain a mixture of OPE molecules and alkanes, unlike our Au-NP–S-BPP arrays.
Room-temperature Raman spectroscopy of 2D Au-NP–S-BPP arrays
In order to get more insight into the binding of the S-BPP molecules to the gold as well as to
PDF
Scheme 1:
Fabrication of 2D Au-NP–S-BPP array (not to scale). The ingredients are gold nanoparticles (diamete...