Nano-Architecture Driven Plasmonic Field Enhancement in 3D Graphene Structures

Kriti Agarwal, Chunhui Dai, Daeha Joung, Jeong-Hyun Cho

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The limited spatial coverage of the plasmon enhanced near-field in 2D graphene ribbons presents a major hurdle in practical applications. In this study, diverse self-assembled 3D graphene architectures are explored that induce hybridized plasmon modes by simultaneous in-plane and out-of-plane coupling to overcome the limited coverage in 2D ribbons. While 2D graphene can only demonstrate in-plane, bidirectional coupling through the edges, 3D architectures benefit from fully symmetric 360° coupling at the apex of pyramidal graphene, orthogonal four-directional coupling in cubic graphene, and uniform cross-sectional radial coupling in tubular graphene. The 3D coupled vertices, edges, surfaces, and volume induce corresponding enhancement modes that are highly dependent on the shape and dimensions comprising the 3D geometries. The hybridized modes introduced through the 3D coupling amplify the limited plasmon response in 2D ribbons to deliver nondiffusion limited sensors, high efficiency fuel cells, and extreme propagation length optical interconnects.

Original languageEnglish (US)
Pages (from-to)1050-1059
Number of pages10
JournalACS nano
Volume13
Issue number2
DOIs
StatePublished - Feb 26 2019

Bibliographical note

Funding Information:
This material is based upon work supported by an NSF CAREER Award (CMMI-1454293). The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper. This work was supported partially by the National Science Foundation through the University of Minnesota MRSEC under Award Number DMR-1420013. Parts of this work were carried out in the Characterization Facility, University of Minnesota, a member of the NSF-funded Materials Research Facilities Network ( www.mrfn.org ) via the MRSEC program. Portions of this work were conducted in the Minnesota Nano Center, which is supported by the National Science Foundation through the National Nano Coordinated Infrastructure Network, Award Number NNCI-1542202. The authors would like to thank Dr. Andrei Nemilentsau and Prof. Tony Low for providing valuable insights into the simulation of 3D graphene structures and discussions of the simulated results.

Publisher Copyright:
Copyright © 2018 American Chemical Society.

Keywords

  • 3D structures
  • graphene
  • near-field enhancement
  • plasmons
  • self-assembly

How much support was provided by MRSEC?

  • Partial

PubMed: MeSH publication types

  • Journal Article

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