Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Atomic Radii and Effective Nuclear Charge03:08

Atomic Radii and Effective Nuclear Charge

62.4K
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
62.4K
Even and Odd Signals01:17

Even and Odd Signals

2.2K
An even signal, whether in continuous-time or discrete-time, is defined by its symmetry with its time-reversed version. Mathematically, this is represented as
2.2K
Odds Ratio01:09

Odds Ratio

1.9K
The odds ratio (OR) is a statistical measure used extensively in epidemiology and research to quantify the strength of association between exposure and outcome across different groups. Unlike relative risk, which compares the probabilities of an event occurring, the odds ratio compares the odds of an event occurring in the exposed group to the odds of it occurring in the unexposed group. The odds, in this context, are calculated as the probability of the event happening divided by the...
1.9K
Formal Charges02:42

Formal Charges

40.7K
In some cases, there are seemingly more than one valid Lewis structures for molecules and polyatomic ions. The concept of formal charges can be used to help predict the most appropriate Lewis structure when more than one reasonable structure exists.
40.7K
Ions and Ionic Charges03:27

Ions and Ionic Charges

79.5K
In ordinary chemical reactions, the nucleus — which contains the protons and neutrons of each atom and thus identifies the element — remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons to form electrically charged particles called...
79.5K
Understanding the Self01:28

Understanding the Self

334
The self is a central aspect of human identity, encompassing an individual’s beliefs, emotions, perceptions, and experiences. It is a cognitive and psychological construct that enables individuals to interpret their traits and behaviors, influencing how they perceive themselves and interact with the world. While personality consists of stable and enduring characteristics, the self is shaped by self-perception and social experiences. This distinction highlights the dynamic nature of the...
334

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Amidine isosteric modification tunes proteolytic stability and activity.

RSC chemical biology·2026
Same author

β-alanine betaine and nAChRs in <i>Ascaris</i>.

bioRxiv : the preprint server for biology·2026
Same author

Thioimidate Protection Enables Amide, Thioamide, and Amidine Installation at Aspartic Acid Residues.

The Journal of organic chemistry·2026
Same author

A Versatile Strategy for Head-to-Tail Macrocyclization and Traceless Backbone Editing of Short Peptides.

Journal of the American Chemical Society·2026
Same author

Understanding Solvent-Induced Glass Transition in Polymer Thin Films Using Absorption-Desorption Isotherms.

Macromolecules·2026
Same author

Estradiol Reverses Ovariectomy-Induced Small RNA-mRNA Stress Signatures to Restore Neuroendocrine, Synaptic, and Immune Homeostasis in the Hypothalamus.

Biomolecules·2026

Related Experiment Video

Updated: Feb 15, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

16.1K

Understanding interface (odd-even) effects in charge tunneling using a polished EGaIn electrode.

Jiahao Chen1, Thomas J Giroux, Yen Nguyen

  • 1Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, USA. mthuo@iastate.edu.

Physical Chemistry Chemical Physics : PCCP
|February 1, 2018
PubMed
Summary

Chemically polishing eutectic gallium indium (EGaIn) tips improves molecular junction stability. This method enhances the observation of odd-even effects in charge transport through molecular layers, crucial for quantum electronic devices.

More Related Videos

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

10.3K
Fabrication of High Contact-Density, Flat-Interface Nerve Electrodes for Recording and Stimulation Applications
09:35

Fabrication of High Contact-Density, Flat-Interface Nerve Electrodes for Recording and Stimulation Applications

Published on: October 4, 2016

10.2K

Related Experiment Videos

Last Updated: Feb 15, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

16.1K
All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

10.3K
Fabrication of High Contact-Density, Flat-Interface Nerve Electrodes for Recording and Stimulation Applications
09:35

Fabrication of High Contact-Density, Flat-Interface Nerve Electrodes for Recording and Stimulation Applications

Published on: October 4, 2016

10.2K

Area of Science:

  • Molecular electronics
  • Quantum devices
  • Surface science

Background:

  • Large area molecular tunneling junctions are key for quantum electronic devices.
  • Eutectic gallium indium (EGaIn) electrodes offer a platform for structure-property studies.
  • Tip morphology and fabrication inconsistencies hinder reliable molecular junction analysis.

Purpose of the Study:

  • To develop a method for improving EGaIn tip surface morphology for molecular tunneling junctions.
  • To investigate the impact of tip surface polishing on charge transport measurements.
  • To re-evaluate the odd-even effect in molecular junctions with enhanced precision.

Main Methods:

  • Chemical polishing of EGaIn tips to achieve smooth, conformal contact.
  • Fabrication of molecular tunneling junctions using polished EGaIn electrodes.
  • Measurement of charge transport across n-alkanethiolate self-assembled monolayers (SAMs).

Main Results:

  • Polished EGaIn tips enable stable, conformal contact, reducing variability in current density.
  • Observed odd-even oscillation in charge transport behavior of n-alkanethiolate SAMs correlates with wetting studies.
  • Odd-even effects are attributed to orientation-induced differences in SAM (gauche) defects.

Conclusions:

  • Chemical polishing of EGaIn tips is a viable method to enhance molecular junction stability and data reproducibility.
  • The study provides a more reliable platform for observing molecular structure-property relationships, including the odd-even effect.
  • Discrepancies in odd-numbered SAMs across different metal electrodes (Ag, Au) warrant further investigation.