The Effect of Molecular Adsorption on electro-optical properties of graphene-based sensors

• Main Authors: Meshginqalam, B., Ahmadi, M. T., Sabatyan, A., Ismail, R.
• Format: Article
• Published: Springer New York LLC 2017
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/77042/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-84986247600&doi=10.1007%2fs11468-016-0375-2&partnerID=40&md5=0feb87f5419f633585dbac9d0c8c3351
• Institution: Universiti Teknologi Malaysia

Extraordinary electrical and optical features of graphene-based materials attract researchers to improve sensing center of different sensors using them. In this research, the effects of sensing molecules on electro-optical features of graphene-based sensors are modeled. The adsorption effect on the Hamiltonian of the system based on tight-binding model is explored, and also the system band structure is investigated analytically. Then, refractive index deviations based on band gap variations are discovered which are used in response modeling of a graphene-based surface plasmon resonance (SPR) sensor.