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

Types of Semiconductors

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...

Schottky Barrier Diode

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

Correction to "Unraveling the Effects of Fe Incorporation on High-Performance Water-Splitting Photoanodes".

Journal of the American Chemical Society·2026

Same author

Accurate Prediction of Optical Transitions in Epitaxial InGaAs/InAlAs Asymmetric Coupled Quantum-Well Structures.

ACS nanoscience Au·2026

Same author

Structural and electronic signatures of stacking and intralayer transitions in epitaxial bilayer WSe<sub>2</sub> on GaP(111)B.

Nanoscale·2026

Same author

Strategy for Ultranarrow Light Down-Conversion for Displays Based on Bicolor-Emitting 2D Colloidal Heterostructures.

Nano letters·2026

Same author

Surface Passivation of HgTe Nanocrystals Enabling E<sub>G</sub>/2 Open-Circuit Voltage and Their Coupling to Dielectric Cavity for Narrow Detection.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

New Insights into Radical Mechanisms in Natural Drying Oils: Paint Binders as Reactors for Nanoparticle Formation.

ACS omega·2026

Same journal

Decoding Galectin-Glycan Recognition with <sup>19</sup>F-Tagged Lectins: from Simple Glycans to the Cellular Glycocalyx.

Journal of the American Chemical Society·2026

Same journal

Open- and Closed-Shell Roles of Sensitizer and Annihilator in Pseudo-Single Component Mixtures for Upconversion.

Journal of the American Chemical Society·2026

Same journal

Pressure-Induced Superconductivity at 15 K in van-der-Waals Ferroelectric CuInP<sub>2</sub>S<sub>6</sub>.

Journal of the American Chemical Society·2026

Same journal

Carbene Analogues of Group 15: Reduction of s-Hydrindacene-Based Chloropnictogenium Ions To Access an Antimony Hydride Monocation and a Trinuclear Bismuth Dication.

Journal of the American Chemical Society·2026

Same journal

Chiral-Ligand-Modulated Nickel-Catalyzed Stereoselective Radical Migratory C2-Arylation of Carbohydrates.

Journal of the American Chemical Society·2026

Same journal

Coordination-Constraint-Driven Enhanced Chirality Induction in Perovskite Quantum Dot Solids.

Journal of the American Chemical Society·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Apr 21, 2026

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

Type-II CdSe/CdTe core/crown semiconductor nanoplatelets.

Silvia Pedetti¹, Sandrine Ithurria, Hadrien Heuclin

¹Nexdot , 10 rue Vauquelin, 75005 Paris, France.

Journal of the American Chemical Society

|October 23, 2014

Summary

This summary is machine-generated.

Atomically flat cadmium selenide/cadmium telluride (CdSe/CdTe) core/crown nanoplatelets were synthesized. These novel structures exhibit a red-shifted emission up to 730 nm and long fluorescence lifetimes, with potential for enhanced quantum yield.

More Related Videos

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

Published on: July 8, 2016

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

Related Experiment Videos

Last Updated: Apr 21, 2026

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

Published on: July 8, 2016

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

Area of Science:

Materials Science
Nanotechnology
Quantum Dots

Background:

Type-II heterostructures enable spatial charge separation.
Nanoplatelets (NPLs) offer tunable optoelectronic properties.
CdSe/CdTe core/shell systems are promising for light emission.

Purpose of the Study:

Synthesize atomically flat CdSe/CdTe core/crown nanoplatelets (NPLs).
Investigate the effect of crown lateral dimensions on NPL properties.
Characterize the optical and structural properties of these novel NPLs.

Main Methods:

Synthesis of CdSe/CdTe core/crown NPLs with controlled thickness (3-5 monolayers).
Optical characterization: UV-vis absorption, emission, and excitation spectroscopy.
Structural and compositional analysis: X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), and high-resolution transmission electron microscopy (HRTEM).

Main Results:

Achieved fine control over crown lateral dimensions in atomically flat NPLs.
Observed spatially indirect band gap leading to significant emission red shift up to 730 nm (near-infrared).
Measured long fluorescence lifetimes (30-860 ns) dependent on core-crown interface type.
Attained high quantum yield (50%), improvable to 70% with a gradient interface.

Conclusions:

Demonstrated successful synthesis of CdSe/CdTe core/crown NPLs with tunable properties.
Highlighted the potential of these type-II NPLs for near-infrared emission applications.
Emphasized the role of interface engineering in enhancing quantum yield and fluorescence lifetimes.