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

Coulomb's Law01:30

Coulomb's Law

10.6K
Experiments with electric charges have shown that if two objects each have an electric charge, they exert an electric force on each other. The magnitude of the force is linearly proportional to the net charge on each object and inversely proportional to the square of the distance between them. The direction of the force vector is along the imaginary line joining the two objects and is dictated by the signs of the charges involved.
Newton's third law applies to the Coulomb force — the...
10.6K
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

399
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...
399
Coulometry: Overview01:00

Coulometry: Overview

1.7K
Coulometry is one of the rapid, most accurate, and precise analytical techniques that determine the quantity of an analyte by measuring the electrical charge needed for its complete electrolysis without using any analytical standards. The total charge passed during electrolysis correlates with the analyte amount by Faraday's laws of electrolysis. For accurate coulometric measurements, a charge equal to Faraday's constant multiplied by the number of electrons involved in the relevant...
1.7K

You might also read

Related Articles

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

Sort by
Same journal

Optimization of Pr<sup>3+</sup>-doped glasses for photonic applications: an overview and challenges in Judd-Ofelt analysis.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Moiré Effects in Low-Dimensional Heterostructures: From 2D Materials to 2D-3D Mixed-Dimensional Systems.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Gauge-covariant fractional modeling of dipolar Aharonov-Bohm quantum rings: low-lying spectra, localization, and optical signatures.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Microscopic origins of electron trapping in amorphous silicon nitride (a-Si<sub>3</sub>N<sub>4</sub>) and its role in charge-trap flash memory.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

A first-principles investigation of altermagnetism in CrSb2 under applied pressure.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Nonperturbative magnetotransport from band geometry in Weyl semimetals.

Journal of physics. Condensed matter : an Institute of Physics journal·2026

Related Experiment Video

Updated: Oct 31, 2025

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.3K

Parametric study for optimal performance of Coulomb-coupled quantum dots.

Kum Hyok Jong1, Song Mi Ri1, Chol Won Ri1

  • 1Department of Physics, Kim Il Sung University, Ryongnam Dong, Taesong District, Pyongyang, Democratic People's Republic of Korea.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|June 28, 2021
PubMed
Summary

This study optimizes the performance of a quantum heat engine using Coulomb-coupled quantum dots. Researchers identified key parameters influencing transport mechanisms to maximize output power and efficiency.

Keywords:
cotunnelingheat enginequantum-dot

More Related Videos

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.7K
Production and Targeting of Monovalent Quantum Dots
10:16

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

25.7K

Related Experiment Videos

Last Updated: Oct 31, 2025

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.3K
High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.7K
Production and Targeting of Monovalent Quantum Dots
10:16

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

25.7K

Area of Science:

  • Quantum Thermodynamics
  • Solid-State Physics

Background:

  • Quantum heat engines offer efficient energy conversion at the nanoscale.
  • Coulomb-coupled quantum dots (CCQD) exhibit complex transport mechanisms like sequential tunneling and cotunneling.

Purpose of the Study:

  • To investigate the optimal output power and efficiency of a three-terminal quantum heat engine based on CCQD.
  • To understand how transport mechanisms (sequential tunneling vs. cotunneling) affect engine performance.

Main Methods:

  • Theoretical modeling of a three-terminal CCQD system.
  • Analysis of parametric dependencies including temperature difference, bias voltage, Coulomb interaction, and tunneling parameters.
  • Optimization using a genetic algorithm to find peak performance.

Main Results:

  • The dominant transport mechanism (sequential tunneling or cotunneling) is controllable via system parameters.
  • Parametric analysis reveals the influence of various factors on output power and efficiency.
  • The genetic algorithm successfully identified optimal operating conditions for the CCQD heat engine.

Conclusions:

  • Optimal performance of CCQD quantum heat engines is achievable by tuning specific parameters.
  • Understanding and controlling transport mechanisms are crucial for maximizing energy conversion efficiency in quantum devices.