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

Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

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 semiconductor's...
Semiconductors01:22

Semiconductors

There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Types of Semiconductors01:20

Types of Semiconductors

Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
P-N junction01:11

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
Superconductor01:24

Superconductor

A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
Schottky Barrier Diode01:27

Schottky Barrier Diode

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...

You might also read

Related Articles

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

Sort by
Same author

A novel endophytic Penicillium sp. JL76001 and its metabolite sclerotiorin: A multi-target and sustainable strategy for biocontrol of tomato Fusarium wilt.

Pesticide biochemistry and physiology·2026
Same author

Corrigendum to "Study on the molecular mechanism of KPNA2 regulation of myocardial ischemia/delayed reperfusion injury through mitophagy" [Cellular Signalling 136 (2025) 112157].

Cellular signalling·2026
Same author

Single-cell analysis highlights the significance of malignant cell IFN/MHC-II for immunotherapy response in head and neck squamous cell carcinoma.

Cell reports. Medicine·2026
Same author

Molecular sp<sup>3</sup>-like Reactivity of Metastable Au<sub>4</sub>Si near Its Deep Eutectic Point Enables Low-Temperature SiC Formation.

The journal of physical chemistry letters·2026
Same author

Smile-shaped electron gradient distributions observed during magnetic reconnection at Earth's magnetopause.

Communications physics·2026
Same author

Predictive value of dynamic plasma biomarkers for clinical outcomes in pediatric sepsis.

The Turkish journal of pediatrics·2026
Same journal

Radical Cascades on Seawater Microdroplets Drive Atmospheric Mercury Oxidation.

Journal of the American Chemical Society·2026
Same journal

Superior Selective and Fast NH<sub>3</sub> Adsorption of Soft Porous MOF/Ionic Liquid Composites with Ordering Phase Transitions.

Journal of the American Chemical Society·2026
Same journal

Systematic Catalyst Variation for Improved Stereoselective Epoxide Polymerization: Subtle Modifications Resulting in Superior Efficiency.

Journal of the American Chemical Society·2026
Same journal

Deciphering the Halide Chemistry of Cl<sup>-</sup> and Br<sup>-</sup> in Enhancing Kinetics of Mg Plating/Stripping.

Journal of the American Chemical Society·2026
Same journal

Electrosynthesis of C<sub>6</sub> Chemicals by Propylene Oxidative Coupling on Au Surface.

Journal of the American Chemical Society·2026
Same journal

Statistical AI Enables Precise Screening of Multielement Catalysts.

Journal of the American Chemical Society·2026
See all related articles

Related Experiment Video

Updated: May 17, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Bright core-shell semiconductor quantum wires.

Yi-Hsin Liu1, Fudong Wang, Jessica Hoy

  • 1Department of Chemistry, Washington University , Saint Louis, Missouri 63130-4899, United States.

Journal of the American Chemical Society
|October 26, 2012
PubMed
Summary
This summary is machine-generated.

Colloidal cadmium telluride (CdTe) quantum wires achieve high photoluminescence efficiency up to 25% with a cadmium sulfide (CdS) shell. Structural alternations in the wires do not impact their optical properties or efficiency.

More Related Videos

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

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

Published on: June 3, 2015

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Related Experiment Videos

Last Updated: May 17, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

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

Published on: June 3, 2015

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Area of Science:

  • Materials Science
  • Nanotechnology
  • Optoelectronics

Background:

  • Colloidal quantum wires are promising nanomaterials for optoelectronic applications.
  • Achieving high photoluminescence (PL) efficiency in semiconductor nanowires is crucial for device performance.
  • CdTe/CdS core/shell structures are of interest for their unique optical properties.

Purpose of the Study:

  • To report high photoluminescence efficiencies in colloidal CdTe quantum wires.
  • To investigate the effect of a CdS shell on the optical properties of CdTe quantum wires.
  • To determine the influence of structural alternations on the optoelectronic characteristics of CdTe quantum wires.

Main Methods:

  • Synthesis of colloidal CdTe quantum wires.
  • Formation of a monolayer CdS shell on CdTe quantum wires.
  • Characterization of photoluminescence efficiency and spectral properties under low excitation power densities.
  • Analysis of structural properties, including wurtzite-zinc-blende alternations.

Main Results:

  • Achieved ensemble photoluminescence efficiencies as high as 25% for CdTe quantum wires with a CdS shell.
  • Demonstrated that the CdS shell significantly enhances PL efficiency.
  • Observed that optical properties (emission peak shape, PL efficiency) are independent of wurtzite-zinc-blende structural alternations within the CdTe quantum wires.

Conclusions:

  • Monolayer CdS shell formation is an effective strategy to achieve high photoluminescence efficiencies in colloidal CdTe quantum wires.
  • The presence of structural alternations does not negatively affect the optical performance of these quantum wires.
  • CdTe/CdS core/shell quantum wires are robust materials with stable optical properties, suitable for various applications.