Versatile strategy for precisely tailored core@shell nanostructures with single shell layer accuracy: the case of...

Area of Science:

• Nanotechnology and Materials Science
• Chemical Synthesis and Engineering

Background:

• Precise control over nanoparticle shell growth is crucial for tailoring their properties.
• Existing methods often lack the resolution for single monolayer control.
• Versatile core nanoparticles are needed for broad application scope.

Purpose of the Study:

• To present a general synthetic strategy for meticulous control of metallic shell growth at the single monolayer level.
• To demonstrate the versatility of this approach with different core nanoparticles (metallic and semiconductor).
• To highlight the importance of layer-by-layer shell control for tunable plasmonic and optical properties.

Main Methods:

• Introduction of an intermediate phase during a phase transfer reaction to finely tune shell growth.
• Utilizing metallic and semiconductor nanoparticles as versatile core structures.
• Layer-by-layer shell deposition for precise structural and functional control.

Main Results:

• Achieved well-controlled metallic shell growth at the single monolayer level.
• Demonstrated the strategy's versatility across different core nanoparticle types.
• Showcased tunable plasmonic and optical couplings through controlled shell growth.

Conclusions:

• The developed synthetic strategy offers meticulous control over nanoparticle shell growth.
• This approach is vital for understanding and manipulating fundamental nanoscale properties.
• Enables the assembly of nanostructures with desirable, tunable functionalities for various applications.