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

Channel Rhodopsins

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...

You might also read

Related Articles

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

Sort by

Same author

Metasurface-Enabled Light-Driven Liquid Crystal Elastomer Actuators.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Inverted Device Engineering for Efficient and Bright Quantum Rod LEDs.

Advanced materials (Deerfield Beach, Fla.)·2025

Same author

Monomolecular Photo-Alignment Layer for Liquid Crystal Alignment.

ACS applied materials & interfaces·2025

Same author

Polarized Color Filters Using Colloidal Quantum Rod Nanocrystals for Advanced High-Performance Displays.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2025

Same author

Microstructural stiffness engineering of low dimensional metal halide perovskites for efficient X-ray imaging.

Materials horizons·2024

Same author

Responsive Liquid Crystal Network Microstructures with Customized Shapes and Predetermined Morphing for Adaptive Soft Micro-Optics.

ACS applied materials & interfaces·2024

Search research articles

Related Experiment Video

Updated: May 5, 2026

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Highly Efficient and Stable Green Quantum Rod LEDs Enabled by Material and Charge Injection Engineering.

Maksym F Prodanov^1,2, Kumar Mallem^1,2, Zebing Liao^1,2

¹State Key Laboratory on Advanced Displays and Optoelectronics Technologies and Centre for Display Research, Department of Electronics and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China.

Advanced Materials (Deerfield Beach, Fla.)

|June 6, 2025

Summary

Researchers developed efficient green-emitting quantum rod LEDs by minimizing shell thickness and optimizing hole transport layers. This breakthrough addresses a key challenge in display technology, paving the way for brighter, more vibrant screens.

Keywords:

QRLEDs green emission leakage current ligand engineering quantum rods

More Related Videos

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

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

Published on: June 3, 2015

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

Related Experiment Videos

Last Updated: May 5, 2026

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

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

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

Published on: June 3, 2015

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

Area of Science:

Materials Science
Optoelectronics
Nanotechnology

Background:

Nanocrystal-based LEDs offer potential for advanced displays due to high brightness and tunable emission.
External quantum efficiency (EQE) in quantum dot (QD) LEDs is limited by light outcoupling, particularly for green emitters.
Aligned quantum rods (QRs) show promise for directional light emission, but efficient green QRs remain a challenge.

Purpose of the Study:

To synthesize uniform, bright green-emitting cadmium selenide/zinc cadmium sulfide (CdSe/ZnₓCd₁₋ₓS) quantum rods (QRs).
To enhance the performance of QR-based LEDs (QRLEDs) by addressing electron leakage and improving charge balance.
To achieve high external quantum efficiency (EQE) and brightness for green QRLEDs essential for full-color displays.

Main Methods:

Synthesized CdSe/ZnₓCd₁₋ₓS QRs with a gradient shell structure, minimized shell thickness, reduced zinc content, and shorter organic ligands.
Investigated and mitigated electron leakage at the quantum rod/hole transport layer (HTL) interface.
Developed and implemented a bilayer HTL to improve hole injection and minimize electron leakage.

Main Results:

Achieved record-high EQE of 24%, current efficiency (CE) of 89 cd A⁻¹, and maximum brightness (Lmax) exceeding 500k cd m⁻² for green QRLEDs.
Demonstrated an extended operational T₅₀ lifetime of over 22,000 hours at 100 cd m⁻².
Successfully addressed the challenge of efficient and bright green emission in QRLEDs.

Conclusions:

The developed gradient-shell green QRs with optimized HTLs significantly enhance QRLED performance.
This work overcomes critical limitations in green QRLED efficiency and stability.
The high-performance green QRLEDs are suitable for high-color-gamut displays and lighting applications.