Plasmonic Sensor Utilizing Oxide and Antemonene Heterojunction for Glucose Sensing

Abstract

In this work, a plasmonic biosensor based on tin oxide (SnO2) and antimonene is proposed for performance enhancement. The surface plasmon resonance (SPR) based sensor structure consists of five layers centered on Kretschmann configuration. The sensor operation is theoretically demonstrated at visible spectral wavelength of 633 nm for glucose concentration sensing in water. Further, effect of multiple antimonene layer on sensitivity and detection accuracy is also demonstrated.