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

Schottky Barrier Diode01:27

Schottky Barrier Diode

505
Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
505
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

338
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
338
Zener Diodes01:16

Zener Diodes

578
Zener diodes are specialized semiconductor devices designed to operate in the reverse breakdown region, where they allow current to flow into the cathode, making it positive relative to the anode. This reverse operation distinguishes Zener diodes from conventional diodes and enables their use in various applications, most notably as voltage regulators. One of the defining characteristics of Zener diodes is their nearly vertical I-V (current-voltage) characteristic curve above a certain...
578
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

519
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
519

You might also read

Related Articles

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

Sort by
Same author

Stiffness-Switchable Conductive Nanocomposites with Temperature-Invariant Conductivity for Long-Term Brain-Computer Interfaces on Hair-Covered Scalp.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Quantifying Junction/Edge Defect Density of Crystalline Silicon Solar Cells Enabled by Depth-Resolved Transient Photovoltage Decay.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

NQO1-Mediated Anoikis Resistance and Immune Evasion Define a High-Risk Multi-Omic Subtype for Precision Management of T1 High-Grade Bladder Cancer.

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

Beyond the Surface: Three-Dimensional Distribution and Defect Passivation of Self-Assembled Monolayers in Perovskite Solar Cells.

ACS nano·2026
Same author

Real-World Clinical Practices for Premature Ejaculation: A National Survey of Chinese Physicians.

Andrology·2026
Same author

Homoepitaxial Seed-Mediated Growth for High-Efficiency FAPbI<sub>3</sub> Perovskite Solar Cells.

ChemSusChem·2026

Related Experiment Video

Updated: Sep 16, 2025

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

8.9K

Dual-Mode Strain Relief via Zinc Acetate Enables High-Efficiency InP Quantum Dot Light-Emitting Diodes.

Changwei Yuan1,2, Qun Wan3, Xinrong Liao1

  • 1School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.

Angewandte Chemie (International Ed. in English)
|July 8, 2025
PubMed
Summary

A novel dual-mode strain relief strategy using Zn(Ac)2 effectively dopes zinc into indium phosphide (InP) quantum dots (QDs). This reduces interfacial strain by 50%, enhancing photoluminescence quantum yield and leading to efficient InP-based quantum dot light-emitting diodes (QLEDs).

Keywords:
InP quantum dotsQLEDsShell epitaxyStrain relaxationZn‐doped

More Related Videos

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
14:16

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy

Published on: October 23, 2018

7.8K
Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.3K

Related Experiment Videos

Last Updated: Sep 16, 2025

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

8.9K
Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
14:16

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy

Published on: October 23, 2018

7.8K
Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.3K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Quantum Dot Research

Background:

  • Heteroepitaxial shell growth on quantum dots (QDs) is crucial for controlling carrier dynamics.
  • Interface strain in core-shell QDs, especially in indium phosphide (InP) QDs, hinders performance.
  • Conventional zinc doping methods for InP QDs often result in surface deposition rather than lattice incorporation.

Purpose of the Study:

  • To develop an effective strain relief strategy for InP quantum dots.
  • To improve zinc doping efficiency within the InP core.
  • To enable uniform epitaxial shell growth and enhance QD performance.

Main Methods:

  • Utilized a small-molecule precursor, zinc acetate (Zn(Ac)2), for a dual-mode strain relief strategy.
  • Leveraged Zn(Ac)2's ionic bonding and low steric hindrance for efficient Zn doping into the InP core.
  • Investigated the impact of this precursor on interfacial strain reduction and epitaxial shell growth.

Main Results:

  • Achieved efficient zinc doping into the InP core, moving beyond surface deposition.
  • Reduced interfacial strain by 50% through effective strain management.
  • Demonstrated near-unity photoluminescence quantum yield in InP QDs and high performance in fabricated green InP-based QLEDs (26.3% external quantum efficiency).

Conclusions:

  • The dual-mode strain relief strategy using Zn(Ac)2 successfully addresses lattice mismatch and ligand steric hindrance.
  • This approach provides a general and scalable platform for strain engineering in quantum dots.
  • The method shows broad applicability for various quantum dot material systems, enhancing optoelectronic device performance.