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

Search research articles

Related Experiment Video

Updated: Sep 12, 2025

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Spectroscopy of Single CdSe Magic-Sized Nanocrystals.

Gabriel Nagamine¹, Julian Santen¹, Juri G Crimmann¹

¹Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland.

|August 6, 2025

Summary

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

Fourier pixels for bidirectional light control.

Nature·2026

Same author

Broadband, Compact, and Training-Free Optical Processors for Parallel Image Classification.

ACS nano·2026

Same author

Optical Fourier Surfaces for Integrated Photonics.

ACS nano·2026

Same author

Tuning Quintet Multiexciton Sublevel Selection via Bridge Resonance in Singlet Fission.

The journal of physical chemistry letters·2026

Same author

All-optical control of second-harmonic generation in β-BaB<sub>2</sub>O<sub>4</sub> via coherent, terahertz-driven acentric lattice displacement.

Nature communications·2026

Same author

MoS<sub>2</sub> Degradation Dynamics under Simulated Diurnal (Photo)electrochemical H<sub>2</sub> Evolution Reaction Conditions.

Journal of the American Chemical Society·2026

Magic-sized nanocrystals (MSNCs) exhibit narrow emission spectra due to discrete growth steps. Their optical performance is influenced by exciton-phonon coupling, making them suitable for optoelectronics.

Area of Science:

Materials Science
Nanotechnology
Quantum Optics

Background:

Magic-sized nanocrystals (MSNCs) are semiconductor crystallites with discrete growth steps, potentially leading to monodisperse samples.
Understanding the optical properties of individual MSNCs is crucial for their application.

Purpose of the Study:

Investigate the impact of magic sizes on the optical performance of individual MSNCs at room temperature.
Determine the factors contributing to the emission line width of MSNCs.

Main Methods:

Studied the photoluminescence emission of individual MSNCs at room temperature.
Analyzed MSNCs with varying sizes and shell structures.
Compared emission spectra of MSNCs with standard CdSe quantum dots.

Keywords:

atomically precise nanocrystals colloidal quantum dots homogeneous broadening inhomogeneous broadening magic-sized clusters single-particle spectroscopy

More Related Videos

Seeded Synthesis of CdSe/CdS Rod and Tetrapod Nanocrystals

Seeded Synthesis of CdSe/CdS Rod and Tetrapod Nanocrystals

Published on: December 11, 2013

Synthesis of Ligand-free CdS Nanoparticles within a Sulfur Copolymer Matrix

Synthesis of Ligand-free CdS Nanoparticles within a Sulfur Copolymer Matrix

Published on: May 1, 2016

Related Experiment Videos

Last Updated: Sep 12, 2025

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Seeded Synthesis of CdSe/CdS Rod and Tetrapod Nanocrystals

Seeded Synthesis of CdSe/CdS Rod and Tetrapod Nanocrystals

Published on: December 11, 2013

Synthesis of Ligand-free CdS Nanoparticles within a Sulfur Copolymer Matrix

Synthesis of Ligand-free CdS Nanoparticles within a Sulfur Copolymer Matrix

Published on: May 1, 2016

Main Results:

Single-MSNC line width significantly influences ensemble emission spectra.
Observed single-particle line width is consistent with exciton coupling to acoustic surface phonons.
Small CdSe MSNCs (<2.7 nm) exhibit narrower ensemble spectra than CdSe quantum dots with similar confinement.
MSNCs demonstrate high emission efficiency (40-80%) and strong photon antibunching (g(2)(0) ~ 0.05).

Conclusions:

Exciton-phonon coupling and residual size dispersity play a key role in MSNC optical properties, more so than in standard quantum dots.
MSNCs are promising for optoelectronics and quantum information due to their bright emission and strong confinement.