Sensitivity enhanced tunable plasmonic biosensor using two-dimensional twisted bilayer graphene superlattice

• Published in: Nanophotonics (Berlin, Germany) Vol. 12; no. 7; pp. 1271 - 1284
• Main Authors: Du, Fusheng, Zheng, Kai, Zeng, Shuwen, Yuan, Yufeng
• Format: Journal Article
• Language: English
• Published: Germany De Gruyter 01.04.2023; Walter de Gruyter GmbH
• Subjects: Bilayers; Biomedical materials; Biomolecules; Biosensors; Configurations; Engineering Sciences; GH shift; Graphene; Hemoglobin; human hemoglobin; Microorganisms; Optics; Photonic; Plasmonics; Refractivity; SARS-CoV-2; Sensitivity enhancement; Severe acute respiratory syndrome coronavirus 2; Superlattices; Thin films; tunable plasmonic biosensor; twisted bilayer graphene superlattice; twisted bilayer graphene superlattice; SARS-CoV-2; human hemoglobin; tunable plasmonic biosensor; GH shift; sensitivity enhancement

This study theoretically demonstrated an insight for designing a novel tunable plasmonic biosensor, which was created by simply stacking a twisted bilayer graphene (TBG) superlattice onto a plasmonic gold thin film. To achieve ultrasensitive biosensing, the plasmonic biosensor was modulated by Goos–...