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Search for "molecular conductance" in Full Text gives 8 result(s) in Beilstein Journal of Nanotechnology.
Inelastic electron tunneling spectroscopy of difurylethene-based photochromic single-molecule junctions
Beilstein J. Nanotechnol. 2017, 8, 2606–2614, doi:10.3762/bjnano.8.261
- trapped between the separated electrodes showing molecular conductance plateaus. The plateau with the lowest conductance indicates a single-molecule junction, before also the metal–molecule–metal contact breaks, as indicated by a sudden drop of the conductance to below 10−8 G0. This breaking process is
Rigid multipodal platforms for metal surfaces
Beilstein J. Nanotechnol. 2016, 7, 374–405, doi:10.3762/bjnano.7.34
- properties of single-molecule devices becomes possible, which is of paramount importance for molecular devices. Furthermore, not only the effect of anchoring groups, but also accurate measurements of the molecular conductance over the functional core and molecular wire is crucial to fulfill requirements for
Case studies on the formation of chalcogenide self-assembled monolayers on surfaces and dissociative processes
Beilstein J. Nanotechnol. 2016, 7, 263–277, doi:10.3762/bjnano.7.24
- several investigations on gold [21][22][23][24][25][75] and this dithiol was used in one of the first studies of molecular conductance [70]. Many of these studies use gold electrodes. It was interesting to extend these investigations to another prototype electrode metal: copper. This prompted the work
High electronic couplings of single mesitylene molecular junctions
Beilstein J. Nanotechnol. 2015, 6, 2431–2437, doi:10.3762/bjnano.6.251
- [39]. We used the STM-BJ method [15] operating in a liquid environment where thousands of molecular junctions were repeatedly made for statistical analysis of the molecular conductance and I–V characteristics. Figure 2 shows the conductance traces and histograms during stretching processes of the
- histograms show molecular conductance-peaks around 0.1G0 and 0.03G0. We observed two distinct high and low conductance states for a mesitylene junction. In a thousand of measured conductance traces, a small number of traces exhibit switch between the two states. The preferential conductance peaks around
- is noticeable in Figure 2e, which is possibly due to formation of multi-molecular junctions. In our conductance measurement, plateaus are also present around 0.03G0. In STM-BJ experiments, molecular conductance appears as integer multiple plateaus of a fundamental molecular conductance [15] and the
Controlled switching of single-molecule junctions by mechanical motion of a phenyl ring
Beilstein J. Nanotechnol. 2015, 6, 2088–2095, doi:10.3762/bjnano.6.213
- anchored to the surface via an oxygen atom. The reversible switching of the junction allowed us to explore the effect of molecular interaction on the molecular conductance. Here we extend this study and show that switching can be controlled by voltage pulses as well as by mechanical manipulation of the tip
- investigate the dependence of tip–molecule contact geometry on the molecular conductance, we obtained data for PhO and PhS with modified tip apexes. First, we recorded the conductance for each of the two molecules before the tip apex was modified by a gentle touch to the surface to change the tip–molecule
- effect of an anchoring group on the molecular conductance has been intensively studied [29][30][31], that of the side group to the molecular backbone has received less attention [32][33][34]. This is probably due to the fact that the latter is much smaller than the former. Here we explore the effect of
Conductance through single biphenyl molecules: symmetric and asymmetric coupling to electrodes
Beilstein J. Nanotechnol. 2015, 6, 1690–1697, doi:10.3762/bjnano.6.171
- conductive properties of individual molecular groups. Keywords: biphenyl; metallic break junctions; molecular conductance; Introduction The ultimate goal of molecular electronics is to implement single molecules as active functional elements in future electronic devices such as amplifiers, rectifiers
- junction. The nitrogen peak from M2 molecule confirms the presence of the molecule M2 on the gold surface. As a first step of molecular conductance, we performed opening and closing cycles. In Figure 3 we show two characteristic curves of changes in conductance during opening the contacts in presence of M1
- results in large differences of conductance [15]. Conductance values above 0.02G0 have a weight of only 0.3% of all measured values, and are thus quite unlikely. Molecular conductance values for M2 up to 0.16G0 were observed, whereas for M1 this range goes only up to 0.04G0. In order to check for stable
The influence of molecular mobility on the properties of networks of gold nanoparticles and organic ligands
Beilstein J. Nanotechnol. 2014, 5, 1664–1674, doi:10.3762/bjnano.5.177
- for molecular conductance experiments, includes nanoparticles (ca. 10 nm) incorporated to bridge the size gap between macroscopic electrodes (larger than 100 nm) and molecules (ca. 1 nm) [2][3][4][5][6][7][8]. Typically, 2D arrays of gold nanoparticles capped by alkanethiols are created, after which
Charge transport in a zinc–porphyrin single-molecule junction
Beilstein J. Nanotechnol. 2011, 2, 714–719, doi:10.3762/bjnano.2.77
- displacement. Such low-bias transport measurements have been extensively used to study the dependence of the molecular conductance on the length [1][2], conformation [3][4] and anchoring groups [5][6] of rod-like molecules. However, as the bias range is very limited, the main contribution to the current is off
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