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Polymorphous Packing of Pentagonal Nanoprisms.

Jules Marcone¹, Wajdi Chaâbani¹, Claire Goldmann¹

¹Laboratoire de Physique des Solides, CNRS and Université Paris-Saclay, 91400 Orsay, France.

|February 10, 2023

Summary

This summary is machine-generated.

Researchers packed pentagonal nanoprisms into supercrystals, discovering novel arrangements beyond predicted structures. This controlled assembly of plasmonic nanoparticles offers tunable optical properties for advanced applications.

Keywords:

nanoparticles pentagonal packing self-assembly silver nanorods superlattices

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Area of Science:

Materials Science
Nanotechnology
Crystallography

Background:

Achieving high packing fractions in solid shape assemblies is challenging.
Regular pentagons, unable to tile a plane, present unique packing complexities.
Plasmonic nanoprisms offer tunable optical properties.

Purpose of the Study:

To demonstrate the packing of pentagonal cross-section plasmonic nanoprisms into extended supercrystals.
To explore novel packing configurations and their resulting packing fractions.
To investigate the potential for tuning optical properties through controlled assembly.

Main Methods:

Synthesis and assembly of plasmonic nanoprisms with pentagonal cross-sections.
Crystallographic analysis to identify packing structures.
Characterization of packing fractions and polymorphs.

Main Results:

Successfully formed extended supercrystals from pentagonal nanoprisms.
Observed known ice-ray and Dürer packings, alongside novel polymorphs.
Identified intermediate packing fractions achievable through continuous sliding transformations.

Conclusions:

Pentagonal nanoprisms can form complex supercrystals with tunable densities and symmetries.
The discovered packings and polymorphs offer new avenues for manipulating optical properties.
This controlled assembly has potential applications in metamaterials, catalysis, and molecular detection.