Chiral Optical Properties of Möbius Graphene Nanostrips.

J Phys Chem Lett

Department of Materials and The Thomas Young Centre for Theory and Simulation of Materials, Imperial College London, London SW7 2AZ, United Kingdom.

Published: May 2023

AI Article Synopsis

  • The study focuses on the chiral optical properties of twisted graphene nanostrips, particularly the Möbius structure.
  • By using coordinate transformation and cyclic boundary conditions, researchers modeled the electronic structure and optical spectra of these nanostrips.
  • The findings indicate that the dissymmetry factors in these twisted structures can surpass those of small chiral molecules, suggesting their potential for advanced chiral optical applications.

Article Abstract

The advancement of optical technology demands the development of chiral nanostructures with a strong dissymmetry of optical response. Here, we comprehensively analyze the chiral optical properties of circular twisted graphene nanostrips, with a particular emphasis on the case of a Möbius graphene nanostrip. We use the method of coordinate transformation to analytically model the electronic structure and optical spectra of the nanostrips, while employing the cyclic boundary conditions to account for their topology. It is found that the dissymmetry factors of twisted graphene nanostrips can reach 0.01, exceeding the typical dissymmetry factors of small chiral molecules by 1-2 orders of magnitude. The results of this work thus demonstrate that twisted graphene nanostrips of Möbius and similar geometries are highly promising nanostructures for chiral optical applications.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10201574PMC
http://dx.doi.org/10.1021/acs.jpclett.3c00925DOI Listing

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Department of Materials and The Thomas Young Centre for Theory and Simulation of Materials, Imperial College London, London SW7 2AZ, United Kingdom.

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  • By using coordinate transformation and cyclic boundary conditions, researchers modeled the electronic structure and optical spectra of these nanostrips.
  • The findings indicate that the dissymmetry factors in these twisted structures can surpass those of small chiral molecules, suggesting their potential for advanced chiral optical applications.
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