Graphene oxide/gold coated Kretschmann surface plasmon resonance setup for relative humidity detection
Document Type
Article
Publication Date
1-1-2022
Abstract
A Kretschmann surface plasmon resonance setup was used to detect relative humidity changes. The used prism had a gold coating of 50-nm thickness, and then, it was additionally coated with graphene oxide (GO) to increase its sensitivity to relative humidity changes. GO can adsorb moisture from air, increasing its thickness and changing its refractive index. The GO/gold coated setup had a sensitivity of 0.17°/RH compared to the setup with gold coating only, which had a sensitivity of 0.07°/RH. The GO/gold coated setup also had good stability and showed a standard deviation of less than 0.038 mW. © 2017 IEEE.
Keywords
Gold coatings, Graphene, Humidity sensors, Refractive index, Surface plasmon resonance, Surface treatment, Moisture, Gold, Gold coated prism, Gold-coated, Humidity detection, Kretschmann, Plasmonics, Relative humidity changes, Sensitivity, Surface-plasmon resonance, Plasmonics
Divisions
sch_ecs
Funders
INTI Research Grant Scheme [Grant No; INTI-FITS-03-2020],Airlangga Research Grant (2022)
Publication Title
IEEE Sensors Letters
Volume
6
Issue
4
Publisher
Institute of Electrical and Electronics Engineers Inc.