Green-Graphene Protective Overlayer on Optical Microfibers: Prolongs the Device Lifetime

Anastasia Novikova, Aviad Katiyi, Aviran Halstuch, Alina Karabchevsky

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Optical microfibers find new applications in various fields of industry, which in turn require wear resistance, environmental friendliness and ease of use. However, optical microfibers are fragile. Here we report a new method to prolong the microfiber lifetime by modifying its surface with green-extracted graphene overlayers. Graphene films were obtained by dispergation of shungite mineral samples in an aqueous medium. For this, we tapered optical fibers and sculptured them with graphene films mixed with gold nanoparticles. We observed that due to the surface modification the lifetime and survivability of the microfiber increased 5 times, as compared to the bare microfiber. The embedded gold nanoparticles can also be utilized for enhanced sensitivity and other applications.

Original languageEnglish
Article number2915
Issue number17
StatePublished - 1 Sep 2022


  • gold nanoparticles
  • green graphene
  • microfiber

ASJC Scopus subject areas

  • Chemical Engineering (all)
  • Materials Science (all)


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