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Kim, Kwanpyo
Experimental Nanoscale Physics Lab
Research Interests
  • Two-dimensional (2D) materials, graphene, NEMS, electron microscopy

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Graphene Nanopore with a Self-Integrated Optical Antenna

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Title
Graphene Nanopore with a Self-Integrated Optical Antenna
Author
Nam, SungWooChoi, InheeFu, Chi-chengKim, KwanpyoHong, SoonGweonChoi, YeonhoZettl, AlexLee, Luke P.
Keywords
DNA translocation; fluorescence enhancement; graphene; nanopore; optical antennae; Self-organized formation
Issue Date
2014-10
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.14, no.10, pp.5584 - 5589
Abstract
We report graphene nanopores with integrated optical antennae. We demonstrate that a nanometer-sized heated spot created by photon-to-heat conversion of a gold nanorod resting on a graphene membrane forms a nanoscale pore with a self-integrated optical antenna in a single step. The distinct plasmonic traits of metal nanoparticles, which have a unique capability to concentrate light into nanoscale regions, yield the significant advantage of parallel nanopore fabrication compared to the conventional sequential process using an electron beam. Tunability of both the nanopore dimensions and the optical characteristics of plasmonic nanoantennae are further achieved. Finally, the key optical function of our self-integrated optical antenna on the vicinity of graphene nanopore is manifested by multifold fluorescent signal enhancement during DNA translocation.
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DOI
10.1021/nl503159d
ISSN
1530-6984
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PHY_Journal Papers
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