Abstract
In this paper, long range surface plasmon resonance (LRSPR) biosensors with cytop/Al/Perovskite and cytop/Al/MoS2 configurations have been theoretically investigated and compared with standard LRSPR biosensor with cytop/Al/graphene configuration. To calculate the optical properties of considered configurations for the desired application, transfer matrix method for TM mode has been used to obtain reflectance. The sensitivity of the considered configurations for designed biosensors has been investigated with variation of optical parameters of the structure. A new configuration of LRSPR biosensors based on Al- MoS2 or Al-Perovskite has been proposed to enhance sensitivity, detection accuracy, and efficiency. The maximum value of sensitivity of the proposed Al-Perovskite based LRSPR biosensor is found to be 4847 RIU−1. Moreover, the sensitivity of Al-MoS2 and Al-Peroskite based LRSPR biosensors show nearly 10% and nearly 30% more optical responses respectively than the Al-graphene based LRSPR biosensor.
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