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

You might also read

Related Articles

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

Sort by
Same author

Removal of Codispersible Residual Impurities from CuInS<sub>2</sub>/ZnS Quantum Dots for Window-Replaceable Luminescent Solar Concentrators.

ACS applied materials & interfaces·2026
Same author

The novelty of anticoagulation in LVAD Therapy: Current Practice, the Role of Direct Oral Anticoagulants, and Future Directions.

Journal of cardiovascular pharmacology·2026
Same author

Evaluation of Baseline and Interim-Therapy PET Features for Prognostication in High-Risk Pediatric Hodgkin Lymphoma: A Retrospective Analysis of the AHOD1331 Trial.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same author

Deep learning-based natural language processing for critical care identification in pediatric emergency department.

BMC emergency medicine·2026
Same author

Time-to-event ensemble machine learning approach for predicting long-term survival of abdominal aortic aneurysm patients undergoing endovascular aneurysm repair.

PloS one·2026
Same author

Emissive Colloidal GaAs Quantum Dots.

Journal of the American Chemical Society·2026

Related Experiment Video

Updated: Mar 10, 2026

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode
10:41

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

9.3K

Multifunctional Dendrimer Ligands for High-Efficiency, Solution-Processed Quantum Dot Light-Emitting Diodes.

Ikjun Cho1, Heeyoung Jung, Byeong Guk Jeong2

  • 1Department of Chemical and Biological Engineering, Korea University , Seoul 02841, Republic of Korea.

ACS Nano
|December 16, 2016
PubMed
Summary

New dendrimer ligands enhance quantum dot light-emitting diode (QLED) efficiency by over 3x. These multifunctional ligands improve charge injection and enable all-solution-processed QLEDs, advancing display technology.

Keywords:
adhesive layercharge injectiondendrimer ligandsinterface engineeringquantum dot-based light-emitting diode

More Related Videos

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

18.7K
Production and Targeting of Monovalent Quantum Dots
10:16

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

26.1K

Related Experiment Videos

Last Updated: Mar 10, 2026

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode
10:41

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

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

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

18.7K
Production and Targeting of Monovalent Quantum Dots
10:16

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

26.1K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Organic Electronics

Background:

  • Quantum dot light-emitting diodes (QLEDs) require efficient charge injection for optimal performance.
  • Interface engineering between quantum dots (QDs) and electron transport layers (ETLs) is crucial for device efficiency.
  • Current QLED fabrication often faces challenges with solution processing and ligand stability.

Purpose of the Study:

  • To develop multifunctional dendrimer ligands for QLEDs.
  • To investigate the role of these ligands in controlling charge injection and adhesion.
  • To achieve enhanced efficiency and enable solution-processed QLED fabrication.

Main Methods:

  • Synthesis and characterization of primary amine-functionalized poly(amidoamine) dendrimers (PADs).
  • Replacement of native oleic acid ligands on QDs with PAD ligands.
  • Integration of PAD-functionalized QDs with ZnO ETL in QLED devices.
  • Evaluation of device performance, including external quantum efficiency (EQE).

Main Results:

  • PAD ligands effectively bind to both QD and ZnO ETL surfaces.
  • Dendrimer ligands control electron injection by modifying ZnO surface energy levels.
  • QLED devices utilizing PAD ligands achieved a peak external quantum efficiency of 11.36%, a threefold improvement over native ligands (3.86%).
  • Multibranched dendrimer structure maintained QD layer integrity during solution processing.

Conclusions:

  • Multifunctional dendrimer ligands are effective for controlling charge injection and adhesion in QLEDs.
  • The use of PAD ligands significantly enhances QLED device efficiency.
  • This approach provides a viable route towards fully solution-processed QLEDs.