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 Experiment Video

Updated: May 3, 2026

Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles
11:16

Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles

Published on: August 7, 2016

9.3K

Telegraphic noise in transport through colloidal quantum dots.

Dany Lachance-Quirion1, Samuel Tremblay, Sébastien A Lamarre

  • 1Centre d'Optique, Photonique et Laser (COPL), Département de Physique, de Génie Physique et d'Optique, Université Laval , Québec, Québec, G1V 0A6, Canada.

Nano Letters
|January 21, 2014
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

A Deep Learning Approach to Automatically Classify Ice Hockey Shooting Actions Using Acceleration Signals.

Sensors (Basel, Switzerland)·2026
Same author

Randomized, Prospective Evaluation of Hemostatic Agents in Robotic-Assisted Laparoscopic Partial Nephrectomy.

The Journal of urology·2025
Same author

The comeback of orchiectomy in advanced prostate cancer- is that feasible?

Urologic oncology·2025
Same author

Breaking the ice: exploring sex-based variations in the mechanics of ice hockey slap shots.

Sports biomechanics·2025
Same author

Mesothelioma of the Tunica Vaginalis Testis.

Clinical genitourinary cancer·2025
Same author

Bacillus Calmette-Guérin (BCG) in combination with PANVAC™ vs. BCG alone in adults with high-grade BCG-refractory non-muscle-invasive bladder cancer.

Urologic oncology·2025

Researchers measured electrical transport in single colloidal quantum dots (cQDs). They identified individual charge defects by analyzing telegraphic noise, validating a passivation method for improved quantum dot stability.

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Colloidal quantum dots (cQDs) are crucial in optoelectronics.
  • Understanding charge transport and defects in cQDs is key for device performance.
  • Photoluminescence blinking in cQDs is a known issue linked to charge trapping.

Purpose of the Study:

  • To investigate electrical transport through single Cadmium Selenide/Cadmium Sulfide (CdSe/CdS) core/shell cQDs.
  • To identify and characterize individual charge defects within these cQDs.
  • To validate the effectiveness of a passivation method using CdS shells.

Main Methods:

  • Fabrication of single CdSe/CdS core/shell cQDs connected to electrical contacts.
  • Measurement of electrical transport properties at room temperature.

More Related Videos

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

17.5K
Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

18.0K

Related Experiment Videos

Last Updated: May 3, 2026

Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles
11:16

Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles

Published on: August 7, 2016

9.3K
Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

17.5K
Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

18.0K
  • Analysis of telegraphic switching noise to resolve individual charge trapping events.

    • Main Results:

    • Observed telegraphic switching noise with few plateaus, indicative of individual charge trapping.
    • Resolved individual charge defects in high-quality, low-strain cQDs.
    • Quantitatively validated the passivation method using thick CdS shells.

    Conclusions:

    • The study successfully resolved individual charge defects in CdSe/CdS cQDs.
    • The thick CdS shell passivation method is effective in reducing defects and improving stability.
    • A new figure of merit was introduced to distinguish telegraphic noise from Gaussian noise.