Results 251 to 260 of about 167,152 (283)

Frustrated Rotations in Single-Molecule Junctions

Journal of the American Chemical Society, 2009
We compare the conductance of 1,4-bis(methylthio)benzene with that of 2,3,6,7-tetrahydrobenzo[1,2-b:4,5-b']dithiophene and the conductance of 1,4-bis(methylseleno)benzene with that of 2,3,6,7-tetrahydrobenzo[1,2-b:4,5-b']diselenophene and show explicitly that the orientation of an Au-S or Au-Se bond relative to the aromatic pi system controls electron ...
Park, Young S., Widawsky, Jonathan R., Kamenetska, Maria, Steigerwald, Michael L., Hybertsen, Mark S., Nuckolls, Colin, Venkataraman, Latha   +6 more
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Stereoelectronic switching in single-molecule junctions

Nature Chemistry, 2015
A new intersection between reaction chemistry and electronic circuitry is emerging from the ultraminiaturization of electronic devices. Over decades chemists have developed a nuanced understanding of stereoelectronics to establish how the electronic properties of molecules relate to their conformation; the recent advent of single-molecule break ...
Timothy A. Su, Haixing Li, Michael L. Steigerwald, Latha Venkataraman, Colin Nuckolls   +4 more
openaire   +2 more sources

Aromaticity Decreases Single-Molecule Junction Conductance.

Journal of the American Chemical Society, 2014
We have measured the conductance of single-molecule junctions created with three different molecular wires using the scanning tunneling microscope-based break-junction technique. Each wire contains one of three different cyclic five-membered rings: cyclopentadiene, furan, or thiophene.
Wenbo, Chen, Haixing, Li, Jonathan R, Widawsky, Chandrakumar, Appayee, Latha, Venkataraman, Ronald, Breslow   +5 more
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Plasmon‐Molecule Interactions in Single‐Molecule Junctions

ChemPlusChem, 2023
AbstractSingle‐molecule optoelectronics offers opportunities for advancing integrated photonics and electronics, which also serves as a tool to elucidate the underlying mechanism of light‐matter interaction. Plasmonics, which plays pivotal role in the interaction of photons and matter, have became an emerging area.
Xiangui Zhang, Zhengyu Li, Shurui Ji, Wei Xu, Lijue Chen, Zongyuan Xiao, Junyang Liu, Wenjing Hong   +7 more
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Measuring single molecule conductance with break junctions

Faraday Discuss., 2006
Single-molecule conductance measurements made under potential control provide a critical link between chemical and molecular electronic data. These measurements are made possible by the STM break-junction method introduced recently, but questions remain about its reliability.
Jin, He, Otto, Sankey, Myeong, Lee, Nongjian, Tao, Xiulan, Li, Stuart, Lindsay   +5 more
openaire   +2 more sources

Fast temporal fluctuations in single-molecule junctions

Faraday Discuss., 2006
The noise within the electrical current through single-molecule junctions is studied cryogenic temperature. The organic sample molecules were contacted with the mechanically controlled break-junction technique. The noise spectra refer to a where only few Lorentzian fluctuators occur in the conductance.
Ochs, R., Secker, D., Elbing, M., Mayor, M., Weber, H. B.   +4 more
openaire   +3 more sources

Environmental Control of Single-Molecule Junction Transport

Nano Letters, 2011
The conductance of individual 1,4-benzenediamine (BDA)-Au molecular junctions is measured in different solvent environments using a scanning tunneling microscope based point-contact technique. Solvents are found to increase the conductance of these molecular junctions by as much as 50%.
V, Fatemi, M, Kamenetska, J B, Neaton, L, Venkataraman   +3 more
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Thermoelectric Effect in Single-Molecule-Magnet Junctions

Physical Review Letters, 2010
We study the spin-dependent thermoelectric transport through a single-molecule-magnet junction in the sequential tunneling regime. It is found that the intrinsic magnetic anisotropy of the single-molecule magnet can lead to gate-voltage-dependent oscillations of charge thermopower and a large violation of the Wiedeman-Franz law. More interestingly, the
Rui-Qiang, Wang, L, Sheng, R, Shen, Baigeng, Wang, D Y, Xing   +4 more
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Precision control of single-molecule electrical junctions

Nature Materials, 2006
There is much discussion of molecules as components for future electronic devices. However, the contacts, the local environment and the temperature can all affect their electrical properties. This sensitivity, particularly at the single-molecule level, may limit the use of molecules as active electrical components, and therefore it is important to ...
Haiss, Wolfgang, Wang, Changsheng, Grace, Iain, Batsanov, Andrei S., Schiffrin, David J., Higgins, Simon J., Bryce, Martin R., Lambert, Colin J., Nichols, Richard J.   +8 more
openaire   +2 more sources

Manipulating transport through a single-molecule junction

The Journal of Chemical Physics, 2013
Molecular Electronics deals with the realization of elementary electronic devices that rely on a single molecule. For electronic applications, the most important property of a single molecule is its conductance. Here we show how the conductance of a single octanethiol molecule can be measured and manipulated by varying the contact's interspace.
Sotthewes, Kai, Heimbuch, Rene, Zandvliet, Henricus J.W.   +2 more
openaire   +2 more sources