On the Performance of Highly Sensitive and Accurate Graphene-on-Aluminum and Silicon-Based SPR Biosensor for Visible and Near Infrared |
| |
Authors: | Pradeep Kumar Maharana Triranjita Srivastava Rajan Jha |
| |
Affiliation: | 1. Nanophotonics and Plasmonics Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Toshali Bhawan, Bhubaneswar, Odisha, 751007, India 2. 262, SKA, Sector-16, Rohini, Delhi, 110089, India
|
| |
Abstract: | We demonstrate the numerical analysis of surface plasmon resonance biosensor based on graphene on aluminum and silicon. Employing matrix method, it is found that the proposed sensor exhibits high imaging sensitivity ~400 RIU?1 to 550 RIU?1 in a large dynamic range from visible to near IR region. It is observed that the application of monolayer or bilayer graphene over aluminum not only protects it from oxidation but also enhances the adsorption of biomolecules, which results in the detection of large refractive indices ranging from aqueous solution to biomolecules (refractive index 1.330 to 1.480) with overall high performance in terms of imaging sensitivity and detection accuracy. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|