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

Coherent transformation of metal halide perovskites.

Nature communications·2026
Same author

Room-Temperature Quasi-CW Random Lasing in a Tin-Perovskite Ultrathin Film.

The journal of physical chemistry letters·2026
Same author

Impact of Functional Group Configuration in Isomeric Additives on Device Performance of Quasi-2D Perovskite Solar Cells.

The journal of physical chemistry letters·2026
Same author

Efficient solution-processed light-emitting diodes based on organic-inorganic hybrid antimony halides.

Nature communications·2026
Same author

Deep-blue light-emitting diodes based on perovskite single-crystal thin films.

Science advances·2025
Same author

Submicron Structure Confined Polymers for High-Performance Intrinsically Stretchable Light-Emitting Diodes.

Advanced materials (Deerfield Beach, Fla.)·2025

Related Experiment Video

Updated: Apr 21, 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

8.1K

Solution-processed, high-performance light-emitting diodes based on quantum dots.

Xingliang Dai1, Zhenxing Zhang2, Yizheng Jin1

  • 1Center for Chemistry of High-Performance &Novel Materials, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Nature
|November 4, 2014
PubMed
Summary

Researchers developed a high-performance, solution-processed quantum dot LED. This deep-red light-emitting diode (LED) achieves efficiency and lifetime comparable to vacuum-deposited devices, paving the way for advanced displays.

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
Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation
04:14

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

12.5K

Related Experiment Videos

Last Updated: Apr 21, 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

8.1K
Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

17.5K
Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation
04:14

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

12.5K

Area of Science:

  • Materials Science
  • Optoelectronics
  • Nanotechnology

Background:

  • Solution-processed optoelectronic devices offer low-cost fabrication and flexibility.
  • Quantum dot (QD) and polymer-based light-emitting diodes (LEDs) are promising but face performance limitations.
  • Existing solution-processed LEDs lag behind vacuum-deposited organic LEDs in efficiency, roll-off, and lifetime.

Purpose of the Study:

  • To develop a high-performance, solution-processed, multilayer quantum-dot-based LED.
  • To achieve performance metrics comparable to state-of-the-art vacuum-deposited organic LEDs.
  • To enable next-generation display and solid-state lighting technologies.

Main Methods:

  • Fabrication of a multilayer quantum-dot-based LED using solution processing.
  • Insertion of an insulating layer between the quantum dot and oxide electron-transport layers.
  • Characterization of optoelectronic properties including emission, turn-on voltage, efficiency, roll-off, and operational lifetime.

Main Results:

  • Achieved color-saturated deep-red emission with sub-bandgap turn-on voltage of 1.7 V.
  • Demonstrated high external quantum efficiencies (EQEs) up to 20.5% and low efficiency roll-off (15.1% EQE at 100 mA cm⁻²).
  • Exhibited a long operational lifetime exceeding 100,000 hours at 100 cd m⁻², establishing it as the best-performing solution-processed red LED.

Conclusions:

  • The optimized device structure with an inserted insulating layer significantly improves charge balance and preserves QD emissive properties.
  • This solution-processed quantum dot LED achieves performance comparable to vacuum-deposited organic LEDs.
  • The findings represent a significant advancement towards high-performance, all-solution-processed quantum dot LEDs for future display and lighting applications.