Atom-size gaps and contacts between electrodes fabricated with a self-terminated electrochemical method

Boussaad, S.; Tao, Nongjian

doi:10.1063/1.1465128

Cited by 86 publications

(87 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3). Tao et al [68] achieved nice atom-size gaps and contacts between electrodes fabricated with a self-terminated electrochemical method based on a built-in self-termination mechanism. An external resistor (R ext ) was connected to one of the electrodes and the final gap width could be predetermined by elaborately choosing 1/R ext compared with the conductance quantum (G 0 ¼ 2e 2 /h).…”

Section: Reviewmentioning

confidence: 99%

Nanogap Electrodes

2009

View full text Add to dashboard Cite

Nanogap electrodes (namely, a pair of electrodes with a nanometer gap) are fundamental building blocks for the fabrication of nanometer‐sized devices and circuits. They are also important tools for the examination of material properties at the nanometer scale, even at the molecular scale. In this review, the techniques for the fabrication of nanogap electrodes, the preparation of assembled devices based on the nanogap electrodes, and the potential application of these nanodevices for analysis of material properties are introduced. The history, the research status, and the prospects of nanogap electrodes are also discussed.

show abstract

Section: Reviewmentioning

confidence: 99%

Nanogap Electrodes

2009

View full text Add to dashboard Cite

show abstract

“…A bias voltage of 10 mV is applied over the two sides of the contact to measure its conductance. When the contact is broken, one side of the sample will act as CE and the other one as WE [13], and current will flow between them driven by the bias voltage. This can be increased to values between 0.2 and 1 V in order to favour the electrochemical reaction between the two leads of the sample.…”

Section: Methodsmentioning

confidence: 99%

“…However, the setup (b) has the advantage of avoiding the problems derived from the less-localized deposition mentioned for the first one. As shown in [13], the deposition from one side of the sample to the opposite one is directional, leading to a faster and more efficient growing of the contact.…”

Section: Choicementioning

confidence: 99%

See 1 more Smart Citation

Formation of atomic‐sized contacts controlled by electrochemical methods

Calvo

Mares

Climent

et al. 2007

Physica Status Solidi (a)

View full text Add to dashboard Cite

Electrochemical methods have recently become an interesting tool for fabricating and characterizing nanostructures at room temperature. Simplicity, low cost and reversibility are some of the advantages of this technique that allows to work at the nanoscale without requiring sophisticated instrumentation. In our experimental setup, we measure the conductance across a nanocontact fabricated either by dissolving a macroscopic gold wire or by depositing gold in between two separated gold electrodes. We have achieved a high level of control on the electrochemical fabrication of atomic-sized contacts in gold. The use of electrochemistry as a reproducible technique to prepare nanocontacts will open several possibilities that are not feasible with other methodologies. It involves, also, the possibility of reproducing experiments that today are made by more expensive, complicated or irreversible methods. As example, we show here a comparison of the results when looking for shell effects in gold nanocontacts with those obtained by other techniques.

show abstract

“…These gold nanogaps were then filled with few molecules (bearing a thiol group at each ends) and Coulomb blockade and Kondo effects were observed in these molecular devices [83,84]. A second approach is to start by making two electrodes spaced by about 50-60 nm, then to gradually fill the gap by electrodeposition until a gap of few nanometers has been reached [85][86][87]. Recently, carbone nanotubes (CNT) have been used as electrodes separated by a nano-gap (<10 nm) [88].…”

Section: B At the "Device-like" Levelmentioning

confidence: 99%

Molecular Nanoelectronics

Vuillaume

2010

Proc. IEEE

View full text Add to dashboard Cite

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…).

show abstract

Atom-size gaps and contacts between electrodes fabricated with a self-terminated electrochemical method

Cited by 86 publications

References 11 publications

Nanogap Electrodes

Nanogap Electrodes

Formation of atomic‐sized contacts controlled by electrochemical methods

Molecular Nanoelectronics

Contact Info

Product

Resources

About