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

Quantum Numbers02:43

Quantum Numbers

52.4K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
52.4K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

59.7K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
59.7K
The Dot Product01:26

The Dot Product

266
Measuring how one directional quantity affects another along a specific path involves comparing their orientation and strength. When two such quantities are represented using direction and amount, a numerical result is computed to show how much one acts along the path of the other. This result comes from a rule combining both inputs' horizontal and vertical parts and adding the results.This calculation gives a single value that grows larger when both inputs point in similar directions and...
266
Dot Product01:29

Dot Product

1.0K
The dot product is an essential concept in mathematics and physics.
In engineering, the dot product of any two vectors is the product of the magnitudes of the vectors and the cosine of the angle between them. It is denoted by a dot symbol between the two vectors.
Consider a vehicle pulling an object along the ground using a rope. If the rope makes an angle with the horizontal axis, the work done can be calculated using the dot product of the force applied and the object's displacement.
The dot...
1.0K
Dot Product: Problem Solving01:21

Dot Product: Problem Solving

722
The dot product is a powerful tool in problem-solving involving vectors, given that the dot product of two vectors is the product of their magnitudes and the cosine of the angle between them measured anti-clockwise. Solving problems involving the dot product requires understanding its properties and developing a step-by-step process to solve them. Here are the main steps to follow when solving any general problem involving the dot product:
Identify the problem: Start by reading the problem and...
722
Layers of the Epidermis01:21

Layers of the Epidermis

8.8K
The epidermis, the outermost layer of the skin, is composed of several distinct layers. From deep to superficial, the layers of the epidermis are as follows:
Stratum Basale
Stratum basale, also known as the stratum germinativum, is the deepest layer of the epidermis. It is composed of a single layer of actively dividing cells called basal cells or basal keratinocytes. These cells constantly undergo cell division to replenish the upper layers of the epidermis. Additionally, melanocytes, which...
8.8K

You might also read

Related Articles

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

Sort by
Same author

Tailored Ion Release of Polycaprolactone and Calcium Silicate Composite Fibers Attenuates Neutrophil Extracellular Trap Formation for Dentin-Pulp Complex Regeneration.

Biomaterials research·2026
Same author

Two-photon interference between independent atomic and quantum dot single-photon sources for hybrid quantum network.

Light, science & applications·2026
Same author

Frequent Sweetened Beverage Consumption Is Associated With Accelerated Biological Aging: Evidence From a Population-Based Study and Gut Microbiota Analysis.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Associations of dietary diversity with type 2 diabetes in two Chinese cohorts: a multi-omics study.

Food & function·2026
Same author

Photoswitchable isomers to improve grain boundary resilience and perovskite solar cells stability under light cycling.

Nature energy·2026
Same author

Epitaxial n-ZnO/MoS<sub>2</sub>/p-GaN Heterostructure Light-Emitting Diodes.

Nano letters·2026

Related Experiment Video

Updated: Feb 13, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

17.0K

GaAs droplet quantum dots with nanometer-thin capping layer for plasmonic applications.

Suk In Park1,2, Oliver Joe Trojak3, Eunhye Lee1

  • 1Center for Opto-Electronic Materials and Devices Research, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea.

Nanotechnology
|March 1, 2018
PubMed
Summary

We grew ultra-thin GaAs quantum dots (QDs) using a novel heating step. These QDs exhibit bright, stable visible light emission, ideal for quantum photonic applications.

More Related Videos

Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
10:56

Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

Published on: February 6, 2016

14.6K
Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

11.7K

Related Experiment Videos

Last Updated: Feb 13, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

17.0K
Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
10:56

Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

Published on: February 6, 2016

14.6K
Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

11.7K

Area of Science:

  • Materials Science
  • Quantum Physics
  • Nanotechnology

Background:

  • Quantum dots (QDs) are semiconductor nanocrystals with tunable optical properties.
  • Thin capping layers on QDs are desirable for enhanced light-matter interactions.
  • Controlling QD morphology and optical stability is crucial for device applications.

Purpose of the Study:

  • To investigate the growth of ultra-thin (11 nm) GaAs quantum dots (QDs).
  • To understand the role of an internal thermal heating step on QD morphology and optical properties.
  • To assess the suitability of these QDs for near-field optical studies and quantum photonic applications.

Main Methods:

  • Droplet epitaxy for QD growth.
  • Introduction of an internal thermal heating step during growth.
  • Scanning electron microscopy (SEM) and atomic force microscopy (AFM) for morphological analysis.
  • Photoluminescence (PL) spectroscopy at cryogenic temperatures for optical characterization.

Main Results:

  • Successfully grew GaAs QDs with extremely-thin capping layers (11 nm).
  • The internal heating step significantly influenced QD morphology.
  • Single QDs exhibited optically stable, sharp, and bright emission at visible wavelengths.
  • Demonstrated high-quality optical properties from QDs close to the surface.

Conclusions:

  • Ultra-thin GaAs QDs with excellent optical properties can be fabricated using a controlled heating step.
  • These QDs are promising for investigating near-field effects, such as plasmonic coupling.
  • The controlled emission directionality and spontaneous emission rate make them suitable for quantum photonic devices.