Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

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

Non-antibiotic drug-induced microbiotoxicity as a pharmacological variable.

Chemico-biological interactions·2026

Same author

Corrigendum to "Single-cell RNA sequencing reveals depot-specific characteristics of adipose progenitor cells in ducks" [Poultry Science, Volume 105/Issue 7, July 2026, 107004].

Poultry science·2026

Same author

Fear of progression and associated factors in glaucoma patients: a latent profile analysis.

BMC psychology·2026

Same author

Liver cancer derived high core fucosylation sEV elict malignancy by activating PI3K/AKT signaling pathway.

Cell communication and signaling : CCS·2026

Same author

Causal link between maternal PCOS and fetal/neonatal hemorrhagic and hematological disorders: A 2-sample MR study.

Medicine·2026

Same author

Cross-population QTL mapping and association analysis identify breeding-ready markers for high seed protein content in elite soybean accession HJ117.

Gene·2026

Same journal

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 journal

Durable Core-Shell Scatterer Coating with Heat Storage for Radiative Cooling.

ACS applied materials & interfaces·2026

Same journal

Calix[6]arene-Based Interlocked Inverse Vulcanizate Enabling Network-Interface Cooperative Reinforcement in Natural Rubber/Carbon Black Composites.

ACS applied materials & interfaces·2026

Same journal

Resolving Thermal Accumulation and Rigid-Soft Interface Mismatch in Stretchable Electronics with Cubic Boron Nitride Composite Islands.

ACS applied materials & interfaces·2026

Same journal

Enhancing Conversion Reversibility and Initial Coulombic Efficiency of SnO<sub>2</sub> Anodes via NiO/Ni-Carbon Interfacial Design.

ACS applied materials & interfaces·2026

Same journal

Multidimensional Interface Structure Design for High-Efficiency Optically Controlled Semiconductor Devices: A Case Study on Memristive Synapses.

ACS applied materials & interfaces·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jul 11, 2025

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

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

Efficient Quantum Dot Light-Emitting Diode Enabled by a Thick Inorganic CdS Interfacial Modification Layer.

Chunyan Yang¹, Rui Ma¹, Zhe Wang^2,3

¹School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730000, China.

ACS Applied Materials & Interfaces

|November 9, 2023

Summary

This summary is machine-generated.

A thick cadmium sulfide (CdS) film effectively blocks exciton quenching in quantum dot light-emitting diodes (QLEDs). This inorganic interfacial modification layer boosts QLED performance, achieving higher efficiency and current.

Keywords:

charge balance exciton quenching interfacial modification layer light-emitting diode quantum dot

More Related Videos

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Related Experiment Videos

Last Updated: Jul 11, 2025

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

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

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Area of Science:

Materials Science
Optoelectronics
Nanotechnology

Background:

Ultrathin polymer interfacial modification layers (IMLs) in quantum dot light-emitting diodes (QLEDs) aim to improve charge balance and reduce exciton quenching.
Current polymer IMLs (∼10 nm) are insufficient to fully suppress interfacial exciton quenching due to their thickness being less than the energy transfer distance, limiting device performance.

Purpose of the Study:

To develop a novel inorganic IML for CdSe-based QLEDs that completely blocks interfacial exciton quenching.
To enhance charge balance and overall device performance in QLEDs.

Main Methods:

Fabrication of CdSe quantum dot-based QLEDs utilizing a 35 nm inorganic cadmium sulfide (CdS) film as the interfacial modification layer (IML).
Characterization of device performance, including external quantum efficiency (EQE) and current efficiency, comparing devices with and without the CdS IML.

Main Results:

The 35 nm CdS IML effectively improves charge balance due to its low electron mobility and well-matched energy levels.
Complete suppression of interfacial exciton quenching was achieved as the CdS IML thickness exceeds the energy transfer distance.
QLEDs with the CdS IML demonstrated a maximum EQE of 21.2% and a peak current efficiency of 24.2 cd A⁻¹, representing significant improvements over devices without the IML.

Conclusions:

A thick inorganic CdS film serves as an effective IML for QLEDs, completely blocking interfacial exciton quenching.
The developed CdS IML strategy significantly enhances QLED performance, offering a new pathway for developing high-efficiency devices.