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

A smartphone-based, calibration-free Nafion-modified SPCE electrochemical sensor for clinical validation of 6-thioguanine in erythrocyte lysate and serum.

Biosensors & bioelectronics·2026

Same author

Machine-Learning Based Prognostic Model for Predicting Early Recurrence in HCC Patients After Hepatectomies: An Explainable AI Approach.

Journal of hepatocellular carcinoma·2026

Same author

Epitaxial Bi<sub>2</sub>O<sub>2</sub>Se/Bi<sub>2</sub>O<sub>5</sub>Se Thin Films: Revealing Electric-Field-Driven Oxidation and Resistive Switching Dynamics for Advanced Memory Devices.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same author

[Medium- and long-term clinical efficacy of Jianpi Huogu (Kanggu) Formula in treatment of early-stage femoral head necrosis].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026

Same author

[Analysis of changing patterns of blood stasis degree in non-traumatic osteonecrosis of femoral head based on DSA features].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026

Same author

Tunneled Coronally Advanced Flap with Dual-Site Connective Tissue Grafts for Adjacent RT2 and RT3 Recessions with Isolated Papillary Deficiency: Two Case Reports.

The International journal of periodontics & restorative dentistry·2026

Search research articles

Related Experiment Video

Updated: Jul 28, 2025

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Published on: September 27, 2019

High uniformity red µ-LED array with a current efficiency of 2.6 cd/A and ns-level response time.

Chee-Keong Yee, Jia-Ming Lin, Ming-June Wu

|June 1, 2023

Summary

This summary is machine-generated.

Surface treatments using ammonium sulfide ((NH4)2Sx) solutions enhance red micro-light-emitting-diode (µ-LED) performance. This study shows improved current efficiency and light output uniformity for AlGaInP-based µ-LED arrays.

More Related Videos

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

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

Published on: June 16, 2016

Related Experiment Videos

Last Updated: Jul 28, 2025

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Published on: September 27, 2019

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

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

Published on: June 16, 2016

Area of Science:

Optoelectronics
Materials Science
Semiconductor Devices

Background:

AlGaInP-based micro-light-emitting-diodes (µ-LEDs) are crucial for display and lighting applications.
Surface passivation is essential for improving µ-LED performance and reliability.
Ammonium sulfide ((NH4)2Sx) solutions are explored for surface treatment in optoelectronic devices.

Purpose of the Study:

To investigate the impact of (NH4)2Sx surface treatment on AlGaInP-based 620-nm red µ-LED arrays.
To evaluate the enhancement in optical and electrical characteristics post-treatment.
To analyze the passivation effect on µ-LED performance using ns-level response time measurements.

Main Methods:

Fabrication of AlGaInP-based 620-nm red µ-LED arrays.
Application of (NH4)2Sx solutions for surface treatment on a subset of µ-LED arrays.
Comparative characterization of treated and untreated µ-LED arrays.
Measurement of current efficiency and light output uniformity.
Analysis of device response time at the ns-level.

Main Results:

The (NH4)2Sx surface treatment significantly improved the characteristics of the µ-LED arrays.
A current efficiency of 2.6 cd/A was measured for the treated µ-LED array.
Enhanced light output uniformity was observed in the treated µ-LED arrays.
Fast ns-level response time measurements provided insights into the passivation effects.

Conclusions:

The (NH4)2Sx surface treatment is an effective method for enhancing the performance of AlGaInP-based red µ-LEDs.
Improved current efficiency and light output uniformity are key benefits of this surface treatment.
Further analysis of passivation effects using advanced measurement techniques is warranted for optimizing µ-LED technology.