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Coupled plasmons in aluminum nanoparticle superclusters
Mufasila Mumthaz Muhammed1, Tahani A Alrebdi2, Ali J Chamkha3
1American International University, Saad Al Abdullah - East of Naseem, Block 3, Kuwait.
Physical Chemistry Chemical Physics : PCCP
|November 30, 2022
Summary
Aluminum nanoparticle superclusters show tunable optical properties. Close-packed FCC arrangements enhance plasmon coupling, while BCC structures diminish it, aiding plasmonics design.
Area of Science:
- Materials Science
- Nanotechnology
- Quantum Mechanics
Background:
- Metallic nanoparticles self-assemble into superclusters with applications in optics and catalysis.
- Understanding plasmon coupling in these superclusters is crucial for optimizing their performance.
Purpose of the Study:
- To investigate plasmon coupling in aluminum nanoparticle superclusters.
- To compare plasmon coupling in face-centered-cubic (FCC) and body-centered-cubic (BCC) supercluster arrangements.
- To explore how packing influences optical properties for plasmonics applications.
Main Methods:
- Utilizing first-principles quantum mechanical calculations.
- Simulating and analyzing plasmon coupling in FCC and BCC aluminum nanoparticle superclusters.
Main Results:
- Optical properties are tunable based on nanoparticle packing arrangement.
- Enhanced plasmon coupling observed in FCC superclusters due to constructive interactions.
- Diminished plasmon coupling observed in BCC superclusters due to destructive interactions.
Conclusions:
- The packing arrangement significantly impacts plasmon coupling in aluminum superclusters.
- FCC superclusters offer enhanced plasmon coupling for plasmonics.
- Quantum mechanical calculations provide insights for designing Al-based superclusters for advanced plasmonics applications.
