Numerical Analysis and Comparison of Mxene Based Plasmonic Sensor

Abstract

AbstractIn this paper, two dimensional layered Mxene (Ti3C2Tx) based plasmonic sensor is numerically analyzed and compared with conventional and other plasmonic sensors based on Graphene, MoS2, and black phosphorene. The angular interrogation method is used to obtain the reflectance curves for all types of plasmonic sensors. Thereafter, the performance of all the plasmonic sensors is obtained in terms of shift in resonance angle, minimum reflection intensity, and beam width at different refractive index of sensing medium. The percent increment in the sensitivity of MoS2, Mxene, BlackP, and graphene with respect to conventional are; 19.34%, 12.24%, 10.20%, and 4.86%, respectively. Although addition of these nanomaterials increases sensitivity, they degrade the resolution of the sensor. The percent decrement in the resolution of MoS2, Mxene, BlackP, and graphene with respect to conventional are; 43.45%, 41.23%, 8.15%, and 17.89%, respectively. Although numerical performance of MoS2 is slightly higher than the Mxene, easier synthesis and higher affinity of Mxene towards biomolecules (single stranded Deoxyribonucleic acid) can replace MoS2 and other nanomaterials in the biosensing application.KeywordsSensorSurface plasmon resonanceGrpaheneMoS2MxenePhosphoreneSensitivity