Matrix-Mediated Control of Stochastic Single Molecule Conductance Switching

Donhauser, Zachary J.; Mantooth, Brent A.; Pearl, Thomas P.; Kelly, Kevin F.; Nanayakkara, Sanjini U.; Weiss, Paul S.

doi:10.1143/jjap.41.4871

Cited by 79 publications

(155 citation statements)

References 10 publications

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“…Due to the labile Au-S bond, SAMs on Au often display current level fluctuations (i.e. random telegraph noise) due to sporadic configurational changes of the Au-S bond [17][18][19]. This effect is suppressed for SAMs on Si, because the Si-C or Si-O bonds have a larger binding energy [20] and it is only observed for single molecule with more free space around it [21].…”

Section: Chemistry and Self-assemblymentioning

confidence: 99%

Molecular Nanoelectronics

Vuillaume

2010

Proc. IEEE

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Abstract-Molecular electronics is envisioned as a promising candidate for the nanoelectronics of the future. More than a possible answer to ultimate miniaturization problem in nanoelectronics, molecular electronics is foreseen as a possible way to assemble a large numbers of nanoscale objects (molecules, nanoparticules, nanotubes and nanowires) to form new devices and circuit architectures. It is also an interesting approach to significantly reduce the fabrication costs, as well as the energetical costs of computation, compared to usual semiconductor technologies. Moreover, molecular electronics is a field with a large spectrum of investigations: from quantum objects for testing new paradigms, to hybrid molecular-silicon CMOS devices. However, problems remain to be solved (e.g. a better control of the molecule-electrode interfaces, improvements of the reproducibility and reliability, etc…).

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Section: Chemistry and Self-assemblymentioning

confidence: 99%

Molecular Nanoelectronics

Vuillaume

2010

Proc. IEEE

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“…Other groups have also shown that the local environment affects the observed molecular behavior. [14][15][16] The coassembled monolayer also showed two additional types of behavior other than switching with memory. These included an exponential behavior with small nonreversible NDR peaks ͑not shown in Fig.…”

Section: E Electrical Behavior Of the "Coassembled" Monolayer Of Nitmentioning

confidence: 99%

Effects of molecular environments on the electrical switching with memory of nitro-containing OPEs

Gergel-Hackett

Majumdar

Martin

et al. 2006

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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An oligo͑phenylene ethynylene͒ ͑OPE͒ molecule with a nitro side group has exhibited electrical switching with memory and thus has potential for use in molecular electronic devices. However, different research groups have reported different electrical behaviors for this molecule. In addition to variations among test structures, differences in local molecular environments could be partially responsible for the differences in the reported results. Thus, we tested four variations of a nitro-OPE/ dodecanethiol monolayer in the same type of nanowell test device to study how the environment of the nitro-OPE affects the observed electrical behavior. We found that the density of the nitro-containing molecules in the device altered the observed electrical switching behavior. Further, we found a positive correlation between the disorder of the monolayer and the observed electrical switching behavior. This correlation is consistent with suggestions that nitro molecule switching may depend on a conformational change of the molecule, which may be possible only in a disordered monolayer.

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“…Molecular-scale electronics is one of promissing technologies to overcome the device scale problem and conductance properties of single molecules have been intensively studied. Weiss and co-workers observed switching behavior of oligo (phenylene ethynylene) (OPE) molecules in alkanethiolate self assembled monolayers (SAMs) on gold by using scanning tunneling microscopy (STM) [1][2][3][4][5][6]. They demonstrated that the switching behavior can be controlled by the polarity of the applied elecric field between the STM tip and the substrate and the polarity dependence can be altered by changing the molecular dipole moment.…”

Section: Introductionmentioning

confidence: 99%

Electric Field Effect on the Adsorption State of Methylthiolate on Au(111)

Nagoya

Hamada

Morikawa

2008

e-J. Surf. Sci. Nanotechnol.

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We have studied the effect of the electric field on the adsorption structures of methylthiolate(MeS) on the Au(111) surface by using density functional theory. MeS has the bridge, fcc-hollow and ontop adsorption configurations and the relative stability among those configurations can be changed by applying the electric field perpendicular to the surface. The energy difference between the bridge and fcc-hollow configurations can be well described by a simple dipole-field interaction model and the relative stability is reversed at an electric field of about 26 V/nm. As for the energy difference between the bridge and ontop configurations, the effect of polarization becomes large at strong electric field.

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Matrix-Mediated Control of Stochastic Single Molecule Conductance Switching

Cited by 79 publications

References 10 publications

Molecular Nanoelectronics

Molecular Nanoelectronics

Effects of molecular environments on the electrical switching with memory of nitro-containing OPEs

Electric Field Effect on the Adsorption State of Methylthiolate on Au(111)

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