Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Metal-Semiconductor Junctions

Metal-Semiconductor Junctions

The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...

You might also read

Related Articles

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

Sort by

Same author

Extraction of Soybean and Pea Protein Isolates to Evaluate Therapeutic Potential Against Dexamethasone-Induced Osteoporosis: In Vivo and <i>in Silico</i> Insights.

Food science & nutrition·2026

Same author

Exploring the Nutraceutical Potential of <i>Achillea millefolium</i> L.: Phytochemical Composition, Biological Activities, and Industrial Applications.

Food science & nutrition·2026

Same author

Hepato-Renal Axis: A Systematic Review of Anthocyanin Protective Mechanisms of Preclinical Evidence.

Molecular nutrition & food research·2026

Same author

Investigating the phytotherapeutic efficacy of <i>Acacia nilotica</i> pod ethanolic extract in modulating lipid profile, oxidative stress and inflammation in diet-induced hypercholesterolemia: <i>in vivo</i> and <i>in silico</i> insights.

Frontiers in pharmacology·2026

Same author

Social challenges and support needs of patients with hemophilia in Pakistan: a qualitative exploratory study.

Expert review of hematology·2026

Same author

Exploring the antimicrobial potential of plant-based bioactive compounds in meat products: advances in mechanistic insights, pathogen inhibition, and shelf-life extension.

Critical reviews in food science and nutrition·2026

Search research articles

Related Experiment Video

Updated: May 6, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

Molecular memory with atomically smooth graphene contacts.

Ahmad Umair, Tehseen Z Raza, Hassan Raza¹

¹Department of Electrical and Computer Engineering, University of Iowa, Iowa City, IA 52242, USA. nstnrg@gmail.com.

Nanoscale Research Letters

|November 15, 2013

Summary

Bilayer graphene creates atomically smooth contacts for molecular memory devices. This novel approach enables stable, write-once read-many memory by preventing electrode material migration into the C60 layer.

More Related Videos

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

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

Published on: July 24, 2015

Gradient Echo Quantum Memory in Warm Atomic Vapor

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Related Experiment Videos

Last Updated: May 6, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

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

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

Published on: July 24, 2015

Gradient Echo Quantum Memory in Warm Atomic Vapor

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Area of Science:

Materials Science
Nanotechnology
Electronics

Background:

Atomically smooth surfaces are crucial for stable nanoscale device contacts.
Polycrystalline metal electrodes often exhibit surface roughness, hindering device performance.
Electromigration of electrode material can degrade molecular electronic devices.

Purpose of the Study:

To investigate the use of bilayer graphene as an atomically smooth contact material for molecular memory devices.
To assess the impact of graphene contacts on device stability and memory characteristics.
To explore the potential of graphene-covered electrodes in preventing material electromigration.

Main Methods:

Fabrication of a two-terminal molecular memory device using bucky-ball (C60) molecules.
Utilizing bilayer graphene as a contact layer on a polycrystalline nickel electrode.
Characterization of device electrical properties under varying bias conditions.

Main Results:

Bilayer graphene provided an atomically smooth surface over the nickel electrode.
The graphene contact prevented nickel electromigration into the C60 layer.
Devices exhibited irreversible switching from a low-resistance to a high-resistance state at 0.8-1.2 V bias.
Subsequent cycles retained the high-resistance state, demonstrating write-once read-many behavior.

Conclusions:

Bilayer graphene serves as an effective atomically smooth contact for nanoscale molecular memory.
Graphene contacts enhance device stability by preventing electrode material diffusion.
The developed devices function as reliable write-once read-many memory, promising for future data storage applications.