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

Colloidal precipitates01:09

Colloidal precipitates

2.9K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
2.9K

You might also read

Related Articles

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

Sort by
Same author

Full Quantum and Mixed Quantum-Classical Dynamics of Hot Exciton Cooling in Semiconductor Nanocrystals.

The journal of physical chemistry letters·2026
Same author

Visualizing Millisecond Atomic Dynamics of Nanocrystals in Liquid.

Journal of the American Chemical Society·2026
Same author

Atomic Alignment in PbS Nanocrystal Superlattices with Compact Inorganic Ligands via Reversible Oriented Attachment of Nanocrystals.

Journal of the American Chemical Society·2026
Same author

Emissive Colloidal GaAs Quantum Dots.

Journal of the American Chemical Society·2026
Same author

Quantifying Photochemical Propulsion in Light-Powered Janus Micromotors.

ACS nano·2026
Same author

Photoluminescence line shapes of nanocrystals: Contributions from first- and second-order vibronic couplings.

The Journal of chemical physics·2026

Related Experiment Video

Updated: Nov 23, 2025

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
09:12

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Published on: August 10, 2017

7.8K

Colloidal Synthesis Path to 2D Crystalline Quantum Dot Superlattices.

Justin C Ondry1,2, John P Philbin1, Michael Lostica1

  • 1Department of Chemistry, University of California, Berkeley, California 94720, United States.

ACS Nano
|December 30, 2020
PubMed
Summary

We developed a method for creating highly ordered quantum dot superlattices. This technique allows precise control over material properties for advanced applications.

Keywords:
CdSenanocrystal superlatticesoriented attachmentquantum dotsself-assembly

More Related Videos

Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots
08:21

Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots

Published on: May 7, 2019

10.1K
Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
08:39

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

13.0K

Related Experiment Videos

Last Updated: Nov 23, 2025

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
09:12

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Published on: August 10, 2017

7.8K
Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots
08:21

Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots

Published on: May 7, 2019

10.1K
Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
08:39

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

13.0K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Quantum Dot Research

Background:

  • Quantum dots (QDs) offer unique electronic and optical properties due to quantum confinement.
  • Achieving ordered, single-layer QD superlattices with controlled inter-dot coupling is crucial for advanced electronic and optoelectronic devices.
  • Existing methods often struggle with uniformity and precise control over QD arrangement and inter-particle interactions.

Purpose of the Study:

  • To develop a general and versatile method for fabricating single-dot thick, atomically attached quantum dot superlattices.
  • To achieve high-quality translational and crystallographic orientational order in QD superlattices.
  • To enable independent tuning of QD and matrix materials for tailored optoelectronic properties.

Main Methods:

  • Colloidal synthesis of core/shell quantum dots (e.g., CdSe/CdS).
  • Liquid subphase self-assembly and substrate immobilization of QD superlattices.
  • Solution phase epitaxial growth to form a QD-in-matrix structure.
  • Post-fabrication annealing and cation exchange reactions.

Main Results:

  • Successful preparation of single-dot thick QD superlattices with excellent order and uniformity.
  • QD-in-matrix structures retain characteristic 0D electronic confinement.
  • Annealing effectively removes inhomogeneities, preventing Anderson-type localization.
  • Demonstrated tunability of QD size, shell, QD-QD distance, and matrix material.
  • Successful conversion of CdSe/CdS to HgSe/HgS via cation exchange.

Conclusions:

  • The developed method provides a general route to high-quality quantum dot superlattices.
  • The QD-in-matrix architecture allows for fine-tuning of quantum confinement and coupling.
  • This platform enables the creation of novel quantum dot-based materials with tailored optoelectronic functionalities.