Flexible and Electrically Tunable Plasmons in Graphene–Mica Heterostructures

Hai Hu, Xiangdong Guo, Debo Hu, Zhipei Sun, Xiaoxia Yang*, Qing Dai

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)
163 Downloads (Pure)


Flexible plasmonic devices with electrical tunability are of great interest for diverse applications, such as flexible metamaterials, waveguide transformation optics, and wearable sensors. However, the traditional flexible metal–polymer plasmonic structures suffer from a lack of electrical tunability. Here the first flexible, electrically tunable, and strain-independent plasmons based on graphene–mica heterostructures are experimentally demonstrated. The resonance frequency, strength, quality factor, electrical tunability, and lifetime of graphene plasmons exhibit no visible change at bending radius down to 1 mm and after 1000 bending cycles at a radius of 3 mm. The plasmon-enhanced infrared spectroscopy detection of chemicals is also demonstrated to be unaffected in the flexible graphene–mica heterostructures. The results provide the basis for the design of flexible active nanophotonic devices such as plasmonic waveguides, resonators, sensors, and modulators.

Original languageEnglish
Article number1800175
JournalAdvanced Science
Issue number8
Publication statusPublished - 1 Aug 2018
MoE publication typeA1 Journal article-refereed


  • flexible plasmons
  • graphene plasmons
  • graphene–mica heterostructures
  • mid-infrared plasmons

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