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 Videos

Strongly enhanced field-dependent single-molecule electroluminescence.

Tae-Hee Lee1, Jose I Gonzalez, Robert M Dickson

  • 1School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.

Proceedings of the National Academy of Sciences of the United States of America
|August 1, 2002
PubMed
Summary

Individual silver (Ag(n)) molecules exhibit extreme electroluminescence when electrically written into silver oxide films. This discovery offers a new pathway for highly efficient single-molecule light emission, applicable to both silver and copper nanoclusters.

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

Three-color single-molecule fluorescence resonance energy transfer to study macromolecular dynamics.

Current opinion in structural biology·2026
Same author

Fork Reversal Safeguards Epigenetic Inheritance During Replication Stress.

Research square·2026
Same author

Conformations of Linker Histone H1 Bound to Nucleosome Arrays.

Journal of molecular biology·2026
Same author

Visualizing DNA repair factor recruitment at sites of transcription in single cells.

Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology·2026
Same author

Hashimoto's Encephalopathy in a Critically Ill Patient With Polysubstance Use: A Diagnostic Challenge.

AACE endocrinology and diabetes·2025
Same author

Roles of histone chaperone Nap1 and histone acetylation in regulating phase-separation of nucleosome arrays.

Nature communications·2025

Area of Science:

  • Materials Science
  • Nanotechnology
  • Physical Chemistry

Background:

  • Silver oxide films are typically nonemissive.
  • Understanding single-molecule behavior is crucial for advanced optical applications.

Purpose of the Study:

  • To investigate the electroluminescence of individual silver (Ag(n)) molecules (n=2-8 atoms).
  • To explore a novel mechanism for enhancing single-molecule electroluminescence.
  • To demonstrate the applicability of this mechanism to other nanoclusters, such as copper.

Main Methods:

  • Electrically writing individual Ag(n) molecules into silver oxide films.
  • Exciting the molecules with specific alternating current (ac) frequencies.
  • Analyzing the electroluminescence enhancement compared to bulk and direct current (dc) excitation.

Related Experiment Videos

Main Results:

  • Individual Ag(n) molecules exhibited electroluminescence enhancements greater than 10^4 compared to bulk materials on a per-molecule basis.
  • Extreme electroluminescence was observed at room temperature with specific ac frequency excitation.
  • The observed enhancement mechanism involves field extraction, reinjection, and radiative recombination of electrons, bypassing slow bulk material responses.

Conclusions:

  • A general mechanism for significantly enhancing single-molecule electroluminescence via ac excitation has been identified.
  • This mechanism enables strong electroluminescence from individual, highly fluorescent Ag(n) molecules.
  • The findings extend to producing strong ac-excited electroluminescence from similarly prepared, nonemissive individual copper nanoclusters.