A theoretical analysis to improve the tuning and sensitivity of a surface plasmon resonance biosensor employing titanium disilicide–graphene heterostructures
| Autor: | V. R. Balaji |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Analyte
Materials science business.industry Graphene Heterojunction Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound chemistry law Modeling and Simulation Attenuated total reflection Titanium disilicide Optoelectronics Prism Electrical and Electronic Engineering Surface plasmon resonance business Biosensor |
| Zdroj: | Journal of Computational Electronics. 21:263-269 |
| ISSN: | 1572-8137 1569-8025 |
| Popis: | A surface plasmon resonance-based biosensor is investigated theoretically and mathematically. The proposed sensor is a multilayered structure of titanium disilicide and graphene along with Ag metal. These layers are stacked over a BK7 prism. The thickness of the metal, titanium disilicide, and graphene layers is 45 nm, 2 nm, and 1.7 nm, respectively. Titanium disilicide is an air-stable two-dimensional (2D) material. The performance of the biosensor is analyzed using the attenuated total reflection (ATR) method. The proposed configuration exhibits a maximum sensitivity of 183.4°/RIU, being 47.45% higher than that of the conventional sensor. The designed sensor has wide applications in chemical, medical, and biological analyte sensing. |
| Databáze: | OpenAIRE |
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