Antenna sensors prepared by laser direct writing based on graphene hybrid materials

Akira Watanabe, Ashiqur Rahman, Jinguang Cai, Mohammod Aminuzzaman

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Formation of an antenna-type sensor by laser direct writing based on graphene hybrid materials for humidity and chemical sensing properties was studied. A meander line shaped dipole antenna was prepared by laser direct writing on a graphene oxide (GO)-CuO NRs hybrid film. Resonance peaks were observed at around 4.7 and 5.89 GHz showing the dependence on relative humidity (RH). The humidity increase from RH38 to RH100 caused a resonance peak shift from 5.89 to 5.85 GHz accompanying the increase of return loss from-17.76 to-34.07 GHz. A spiral antenna sensor consisting of GO-coated copper-carbon hybrid showed the resonance band shift depending on the dielectric constant of a chemical compound.

Original languageEnglish
Pages (from-to)159-163
Number of pages5
JournalJournal of Photopolymer Science and Technology
Volume33
Issue number2
DOIs
Publication statusPublished - 2020

Keywords

  • Antenna-type sensor
  • Chemical sensor
  • CuO nanorods
  • Graphene oxide
  • Humidity sensor
  • Laser direct writing
  • Reduced graphene oxide

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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