期刊
NANO LETTERS
卷 14, 期 10, 页码 5584-5589出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl503159d
关键词
Self-organized formation; graphene; nanopore; optical antennae; DNA translocation; fluorescence enhancements
类别
资金
- Samsung Electronics, Inc.
- Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231]
- National Science Foundation within the Center of Integrated Nanomechanical Systems [DMR-1206512]
- National Research Foundation of Korea [21A20130012609] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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