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

Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

554
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
554
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

903
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...
903
Switching of BJT01:22

Switching of BJT

778
Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
778
Semiconductors01:22

Semiconductors

1.4K
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
1.4K
Biasing of FET01:22

Biasing of FET

671
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
671
Biasing of P-N Junction01:16

Biasing of P-N Junction

1.8K
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
1.8K

You might also read

Related Articles

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

Sort by
Same author

Dilute magnetism and edge-state engineering in monolayer SnO.

Nanoscale advances·2026
Same author

Hollow-needle-like nanocarbon with chirality-discriminating inner walls.

Nanoscale·2026
Same author

Electrochemical Wiring of a Metal Nanofilament to Form a Molecular Junction.

The journal of physical chemistry letters·2026
Same author

Crystal-phase memory in metastable AlScN.

Nature materials·2026
Same author

Crack-Free Laser Lift-Off of Epitaxial Oxide Superconductor Films.

ACS applied materials & interfaces·2026
Same author

Redox-Induced Atomic Switch as Platform for Molecular Electronics Devices.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same journal

Reconfigurable Multistate Optical Memory in Mixed Halide Perovskites.

ACS applied materials & interfaces·2026
Same journal

Tunable, High-Relaxivity Gd(III)-Conjugated Lipoic Acid Hydrogels for Magnetic Resonance Imaging.

ACS applied materials & interfaces·2026
Same journal

Effects of Metal Ions of Metal-Organic Framework Membranes on the Transport of NaCl Solutions toward Seawater Desalination.

ACS applied materials & interfaces·2026
Same journal

Immobilization of Single Ni Sites and Separated Pd Clusters in Covalent Organic Framework for Enhanced Electrochemical Reduction of Nitrite to Ammonia.

ACS applied materials & interfaces·2026
Same journal

Evidence for Step-Edge-Assisted Large Hole Borophene on Ni(111).

ACS applied materials & interfaces·2026
Same journal

Growth Mode-Dependent Bi Incorporation and Carrier Localization in GaAsBi Wires.

ACS applied materials & interfaces·2026
See all related articles

Related Experiment Video

Updated: Jan 15, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.2K

Conductance Switching in an Asymmetric Single-Molecule Junction.

Masato Takei1,2, Akira Takatsuki1,2, Katsunori Wakabayashi3

  • 1Chiba Institute of Technology, Tsudanuma, Narashino, Chiba 275-0016, Japan.

ACS Applied Materials & Interfaces
|October 13, 2025
PubMed
Summary
This summary is machine-generated.

Researchers demonstrated electric switching in single-molecule junctions using C60 pyrrolidine tris-acid (CPTA). CPTA molecules showed reproducible switching between high and low conductance states at room temperature, controlled by electrode distance.

Keywords:
C60 pyrrolidine tris-acidfullerenemetal migrationsingle-level transport modelsingle-molecule devicetransition voltage spectroscopy

More Related Videos

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

11.9K
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

10.2K

Related Experiment Videos

Last Updated: Jan 15, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.2K
Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

11.9K
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

10.2K

Area of Science:

  • Molecular electronics
  • Nanotechnology
  • Materials science

Background:

  • Single-molecule electronics offers precise control over electronic properties.
  • Developing stable and reproducible molecular junctions is crucial for device applications.
  • Fullerene derivatives are promising candidates for molecular electronic components.

Purpose of the Study:

  • To demonstrate electric switching in a single-molecule junction using the C60 pyrrolidine tris-acid (CPTA) molecule.
  • To investigate the transport mechanisms and structural modulations in molecular junctions.
  • To explore the potential of CPTA for room-temperature bistable switching.

Main Methods:

  • Fabrication of nanogap electrodes spin-coated with a CPTA thin film.
  • Two-terminal conductance measurements at room temperature.
  • Analysis using single-level tunneling transport model and transition voltage spectroscopy.

Main Results:

  • Reproducible bistable switching between low- and high-conductance states observed at room temperature.
  • Identified two distinct transport regimes: metal-fullerene conduction and through-space tunneling.
  • Confirmed single-molecule charge transport in the high-conductance state.
  • Demonstrated strong dependence of junction asymmetry on molecule-electrode distance in the low-conductance state.

Conclusions:

  • CPTA molecules can form functional single-molecule junctions exhibiting electric switching.
  • The switching mechanism involves modulation of molecule-electrode distance and distinct transport regimes.
  • This study provides insights into structural modulation and charge transport in molecular junctions for future electronic devices.