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Updated: Jan 28, 2026
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Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
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Mechanically reconfigurable architectured graphene for tunable plasmonic resonances
Pilgyu Kang1,2, Kyoung-Ho Kim3, Hong-Gyu Park3,4
11Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA.
Light, Science & Applications
|March 7, 2019
Summary
Researchers developed mechanically reconfigurable crumpled graphene structures for tunable plasmonics. This novel approach broadens spectral tunability for graphene plasmonics, enhancing optical and optoelectronic applications.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Graphene nanostructures are explored for plasmonics due to spatial confinement and gate tunability.
- Limitations include edge effects and narrow tuning ranges in conventional graphene plasmonics.
- Optical and optoelectronic applications are hindered by these limitations.
Purpose of the Study:
- To introduce a novel method for creating mechanically reconfigurable plasmonic structures using crumpled graphene.
- To investigate the spectral tunability and plasmon confinement properties of these structures.
- To demonstrate enhanced emitter decay rates near crumpled graphene.
Main Methods:
- Theoretical calculations and simulations were employed to analyze crumpled graphene structures.
- Mechanical reconfiguration was explored as a tuning mechanism for plasmonic resonances.
- Near-field intensity enhancement and dipole emitter decay rates were investigated.
Main Results:
- Mechanical reconfiguration of crumpled graphene enables broad spectral tunability from mid- to near-infrared.
- Crumpled graphene exhibits strong plasmon confinement with high near-field intensity enhancement (~1 × 10^4).
- Significant enhancement of decay rates for dipole emitters was observed.
Conclusions:
- Crumpled graphene offers a new platform for engineering graphene-based plasmonics.
- Mechanical reconfiguration provides an additional tuning knob alongside electrostatic gating.
- This approach facilitates broadband manipulation of strong plasmonic resonances for advanced applications.
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