Electrochemically Fabricated Nanometer-sized Molecular Junctions

by Yann-Vai Kervennic

Publisher: Delft Univ Pr

Written in English
Cover of: Electrochemically Fabricated Nanometer-sized Molecular Junctions | Yann-Vai Kervennic
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  • General,
  • Science,
  • Science/Mathematics
The Physical Object
Number of Pages162
ID Numbers
Open LibraryOL12803809M
ISBN 109040725136
ISBN 109789040725135

Yajing Li, Pavlo Zolotavin, Peter Doak, Leeor Kronik, Jeffrey B. Neaton, and Douglas Natelson, "Interplay of bias-driven charging and the vibrational Stark effect in molecular junctions", Nano Lett. 16, (). D. Natelson, "Viewpoint: Precise layering of organic semiconductors", Physics 9, 1 (). Discrete tunneling current fluctuations in metal-water-metal tunnel junctions, J CHEM PHYS (19): ; XL Li, HX He, BQ Xu, XY Xiao, LA Nagahara, I Amlani, R Tsui, T Ren and NJ Tao. Measurement of Electron Transport Properties of Electrochemically and Mechanically Molecular Junctions, SUR. SCI (1)   Peng Sun, Fei Li, Cheng Yang, Tong Sun, Ismail Kady, Benjamin Hunt and Jian Zhuang, Formation of a Single Gold Nanoparticle on a Nanometer-Sized Electrode and Its Electrochemical Behaviors, The Journal of Physical Chemistry C, /jpj, , 12, (), (). Molecular transport junctions (MTJs) are essential structures for developing the field of molecular electronics. One of the major challenges in building MTJs is the development of reliable methods for fabricating nanogaps, nanostructures that have metal electrode pairs separated by a few nanometers that enable electrical contact to targeted molecules.

  We fabricate and characterize carbon-fiber tips for their use in combined scanning tunneling and force microscopy based on piezoelectric quartz tuning fork force sensors. An electrochemical fabrication procedure to etch the tips is used to yield reproducible subnm apex. We also study electron transport through single-molecule junctions formed by a single octanethiol . Electrochemically Fabricated Nanometer-sized Molecular Junctions Delft University of Technology, the Netherlands, 11 October 4. W. G. van der Wiel Electron transport and coherencein semiconductor quantum dots and rings Delft University of Technology, the Netherlands, 28 January 3. J. Janssen: Spatially Resolved spectroscopy on.   In order to investigate the feasibility of manufacturing molecular junctions for use in commercial applications, devices are fabricated using a low-density format at the wafer level, where 38 dies per wafer, each containing two molecular junctions, are made with exceptional non-shorted yield (%, representing out of tested devices. In this work, single molecular junctions were fabricated considering N,N0–bis(n-octyl)-1,6-dicyanoperylene-3,,bis(dicarboximide (PDI8-CN 2) molecules. A large series of conductance curves was collected and converted into one- and two-dimensional conductance histograms.

This book provides in-depth knowledge about the fabrications, structures, properties and applications of three outstanding electrochemically engineered nanoporous materials including porous silicon, nanoporous alumina and nanotubular titania. The book integrates three .   Introduction. Gold has been the metal of choice for molecular tunnel junction studies using mechanical break junctions 1, self-assembled junctions 2 or repeated formation of break junctions because of the ease of forming monolayers using well-understood thiol chemistry, and also because of the plastic deformation of gold that gives rise to distinct features when junctions are . Single-molecule junctions are obtained by repeatedly forming and breaking the contact [2,14,15] between the tip and a gold substrate partially covered with an octanethiol self-assembled monolayer shown in Figure 2 molecules were deposited on a gold substrate (commercially available from Arrandee, Werther, Germany) which was initially treated with piranha solution and then flame .   Silver nanowires (AgNWs) were chemically etched to significantly increase the surface roughness and then self-assembled on the liquid/gas interfaces via the interfacial assembly method to obtain aligned chemically etched silver nanowire films. The as-fabricated silver nanowire films were used as novel surface-enhanced Raman scattering (SERS) substrates.

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Books; Electrochemically fabricated nanometer-sized molecular junctions; Electrochemically fabricated nanometer-sized molecular junctions. Share. Info; Cover; Imprint ISBN print Subject Engineering.

Recommend this title to your librarian. €41 / US$59 Excl. VAT. Order Electrochemically fabricated nanometer-sized molecular. ISBN: OCLC Number: Description: vii, pages: illustrations ; 24 cm: Contents: Electron transport at the atom scale --Contacting few-atoms structures --Electrochemistry of gold and platinum at the nanometer scale --Nanometer-spaced platinum electrodes with calibrated separation --Contacting small gold clusters --Planar nanocontacts with atomically.

Electrochemically fabricated nanometer-sized molecular junctions () Export to Mendeley; Save as EndNote; Export to RefWorks; Title: Electrochemically fabricated nanometer-sized molecular junctions: Author: Kervennic, Y.V.

Thesis advisor: Kouwenhouven, L.P. Date issued: Access: Open Access: Reference(s) Molecular electronics Cited by: 1. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link)Author: Y.V.

(author) Kervennic. A simple electrochemical approach was used for fabricating electrode/metal nanowire/(molecule or polymer)/electrode junctions for sensing or molecular electronics applications. The procedure for fabricating these molecule-based devices involves electropolymerization of phenol or chemisorption of alkanethiols on one set of electrodes (E1) and electrodeposition of Ag metal Cited by:   Several approaches have been developed for constructing CP-based molecular junctions.

Tao’s group contributed to this topic in various investigations. Polyaniline (PANI) junctions were electrochemically generated between the tip of an STM and a surface or between two nano-electrodes fabricated by e-beam lithography.

Surface enhanced Raman scattering of a single molecular junction. Physical Chemistry Chemical Physics17 (33), DOI: /C4CPC. Ioan Bâldea. An important impact of the molecule–electrode coupling asymmetry on the efficiency of bias-driven redox processes in molecular junctions.

2. Electrochemically fabricated molecular junctions Fabrication method. A direct approach to study electron transport through molecules is to attach a molecule to two electrodes fixed on a solid substrate.

This approach clearly needs two electrodes separated with a molecular-scale gap. The enriched analytes on the electrochemically fabricated SPME probe were simultaneously desorbed and ionized within a pulled glass capillary by extraction nano-electrospray ionization.

The ionized species were subjected to instrumental analysis on a miniature ion trap mass spectrometer with adequate tandem mass spectrometry capability.

The book is divided into five parts: Fundamentals, Laboratory Practical, Techniques, Applications, and Data. The first section covers the fundamentals of electrochemistry which are essential for everyone working in the field, presenting an overview of electrochemical conventions, terminology, fundamental equations, and electrochemical cells.

Here we describe enhanced Raman scattering at Au electrode 1 (E1)/Ag nanowire (NW)/4-aminothiophenol (4-ATP)/Au electrode 2 (E2) nanojunctions fabricated by combining self-assembly and metal electrodeposition at microgap electrodes (E1 and E2).

In this method we assemble the 4-ATP on electrode E2 and electrodeposit Ag on the opposite electrode E1 of an Au interdigitated array (IDA). The tunnel junction of a gold nanogap was fabricated electrochemically for a molecular sensing device in solution. of ensemble molecular junctions by different approaches, such as the lift.

Part of the Nanostructure Science and Technology book series (NST) Abstract Ge GL, Ries RS, Heath JR, Tseng HR () Electrochemically fabricated polyaniline nanoframework electrode junctions that function as resistive sensors. () Measurement of single-molecule resistance by repeated formation of molecular junctions.

Science   (a) The optimized structures of OPE-2 molecular junctions with two-molecule configuration, in which the stacking lengths are Å, Å, and Å, respectively.

(b) Transmission spectra of OPEs molecular junctions with single-molecule configuration and OPE-2 molecular junctions with two-molecule configuration. 6.) Acoustoelastic Stress Evaluation in Metal Plate Using Absolute Shear and Longitudinal Time-Of Flight Data Michael Janssen [paperback]7.) Advanced mechanics of reinforced concrete.

Atom-scale junctions (ASJs) exhibit quantum conductance behavior and have potential both for fundamental studies of adsorbate-mediated conductance in mesoscopic conductors and as chemical sensors.

Electrochemically fabricated ASJs, in particular, show the stability needed for molecular detection applications. However, achieving physically robust ASJs at high yield is a.

Tian J-H, Liu B, Li X, Yang Z-L, Ren B, Wu S-T, Tao N and Tian Z-Q Study of molecular junctions with a combined surface-enhanced raman and mechanically controllable break junction method J.

Chem. Soc. Crossref PubMed. The tunnel junction of a gold nanogap was fabricated electrochemically for a molecular sensing device in solution. and molecular junctions can be fabricated and characterized systematically. Self-assembly using DNA or APTES as a chemistry linker can be combined with a novel technique for creating single nanometer-sized gaps between electrodes, called a break-junction technique.

Lidong Qin's 21 research works with 3, citations and 1, reads, including: A Photoconductive, Thiophene-Fullerene Double-Cable Polymer, Nanorod Device. By controlling the length of nanowires we believe that nanogaps of less than nm can be fabricated. The metallic nanowires were electrochemically grown using template synthesis.

The lengths of the nanowires are controlled such that when magnetic assembly is done a nanogap is formed between the nanowire and the ferromagnetic pad. nanometer-sized gap. Second, the gap width was maintained at 2–3 nm, and several droplets of solution containing the target molecule were placed over the electrode pair.

The target molecules spread on the surface of the Au electrode pair and formed a thin molecular film. Third, the molecular conductance measurements were carried out upon repeated. The formation of a nanometer-sized gap is achieved by breaking fabricated nanowires through a controlled passage of current.

For the characterization of the breaking process, the voltage drop across a nanowire was monitored in a four-probe configuration. FigureÊ2(a) shows a representative conductance trace during the breaking process.

The. Furthermore, stochastic switching of the closed junction between two conductive modes [Figs. 5(c) and 5(d)] could be observed in the temperature range of – K, which might be related to a diarylethene conformational change, possibly driven by transient molecular charging, that is, changing occupation of the molecular HOMO.

In a word. Although molecular-scale switching has been reported in atomic quantum point contacts, single-molecule junctions provide the additional flexibility of tuning the on/off conductance states through.

separately inside molecular switch tunnel junctions (MSTJs) Fig. A timeline from to summarizing the progression of bistable MIMs from a single MSTJ fabricated using the LB technique toMSTJs in a nanometer-sized device infollowed by a summary of efforts to mount bistable MIMs inside MOFs.

methodologies of manufacturing nanometer-sized disks, bands, cones, and arrays of UMEs The main difficulty in using such electrodes for quantitative measurements is the shape uncertainty. In this paper, we develop procedures for easier preparation and better characterization of nanometer-sized electrochemical sen-sors.

AlGaN based light emitting diodes (LEDs) will play a key role for the development of applications in the ultra-violet (UV). In the UVB region (– nm), phototherapy and plant lighting are among the targeted uses. However, UVB LED performances still need to be improved to reach commercial markets.

In particular, the design and the fabrication process of the active region are central. The tunnel junction of a gold nanogap was fabricated electrochemically for a molecular sensing device in solution.

The tunnel junction was sensitive enough to detect the variation of a potential barrier within the nanogap, such as the chemical adsorption of molecules. The goal of molecular electronics, which has attracted great interests since the s, is to assemble an electronic device using single atoms, molecules, nanoparticles, and other nanostructures [].There are two basic requirements in molecular electronics: one is to create a device and connect it to the outside world [] and the other is to understand and control electron transport through such.

A timeline from to summarizing the progression of bistable MIMs from a single MSTJ fabricated using the LB technique toMSTJs in a nanometer-sized device infollowed by a summary of efforts to mount bistable MIMs inside MOFs.

The present article describes our most recent contribution to this challenging area of research.A method to create atomic point contacts and molecular junctions by combining mechanically controlled break junction and electrochemical deposition/etching techniques is described.

This approach provides both stability and flexibility, and is suitable for studying electron transport properties of single molecule junctions or atomic point contacts in aqueous solutions and under potential control.Optically and electrochemically co-modulated MTJs.

The binuclear compound 1 (Fig. 1a) can achieve photo-triggered isomerization both in solution and in solid-state previously demonstrated44, reversible photochromic processes are achieved upon irradiation with UV light for ring closure and visible light for ring opening in solution (Fig.