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Self-Assembly of Chiral Plasmonic Nanostructures
1Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
Advanced Materials (Deerfield Beach, Fla.)
|June 22, 2016
Summary
Bottom-up self-assembly enables precise fabrication of chiral plasmonic nanostructures. These structures offer tunable optical properties for applications in advanced materials and sensing devices.
Area of Science:
- Nanotechnology
- Optics
- Materials Science
Background:
- Plasmonic chiroptical effects are crucial for applications like negative-refractive-index materials, polarization filters, and sensing.
- Bottom-up self-assembly offers superior nanoscale resolution and production efficiency compared to top-down methods for chiral plasmonic nanostructures.
Purpose of the Study:
- To review recent advancements in the self-assembly of chiral plasmonic nanostructures.
- To present future perspectives on chiral plasmonics utilizing bottom-up self-assembly.
Main Methods:
- Self-assembly of chiral plasmonic nanostructures using metal nanoparticles and chiral molecules as building blocks.
- Design and configuration of structural components to tune near-field coupling of localized surface plasmons.
Main Results:
- Demonstration of three main types of self-assembled chiral plasmonic nanostructures: chiral "plasmonic molecules", chiral superstructures, and chiral-molecule-metal hybrid complexes.
- Highlighting tunable optical properties achieved through controlled self-assembly and building block selection.
Conclusions:
- Self-assembly is a key strategy for fabricating advanced chiral plasmonic nanostructures.
- Future research directions include chiral plasmonic switches, nanoparticles, and metamaterials.
