Related Experiment Video
Updated: Feb 24, 2026
07:02
Studying the Effects of Temperature on the Nucleation and Growth of Nanoparticles by Liquid-Cell Transmission Electron Microscopy
Published on: February 17, 2021
4.7K
High-temperature growth of thick-shell CdSe/CdS core/shell nanoplatelets
Aurelio A Rossinelli1, Andreas Riedinger, Patricia Marqués-Gallego
1Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland. dnorris@ethz.ch.
Chemical Communications (Cambridge, England)
|August 23, 2017
Summary
Researchers developed a new method for creating high-quality semiconductor core/shell nanoplatelets. This technique allows for uniform cadmium sulfide (CdS) shell growth on cadmium selenide (CdSe) nanoplatelets, improving their optical properties.
Area of Science:
- Materials Science
- Nanotechnology
- Quantum Dots
Background:
- Semiconductor nanoplatelets require high-quality shells to optimize optical properties.
- Previous low-temperature syntheses for shell growth faced limitations.
Purpose of the Study:
- To develop a simple and effective method for growing high-quality shells on semiconductor nanoplatelets.
- To overcome limitations of existing low-temperature synthesis techniques.
Main Methods:
- Demonstrated uniform growth of cadmium sulfide (CdS) shells on cadmium selenide (CdSe) nanoplatelets.
- Utilized a synthesis temperature of 300 °C.
Main Results:
- Achieved uniform CdS shell growth on CdSe nanoplatelets.
- Obtained core/shell nanoplatelets with spectrally narrow emission (20 nm).
- Efficient photoluminescence was observed for shell thicknesses up to 4 nm.
Conclusions:
- The developed high-temperature synthesis route enables high-quality shell growth on nanoplatelets.
- This method offers a promising pathway for tuning and enhancing the optical performance of semiconductor nanomaterials.
