Precise and Prompt Analyte Detection via Ordered Orientation of Receptor in WSe₂-Based Field Effect Transistor.

ABSTRACT: Field-effect transistors (FET) composed of transition metal dichalcogenide (TMDC) materials have gained huge importance as biosensors due to their added advantage of high sensitivity and moderate bandgap. However, the true potential of these biosensors highly depends upon the quality of TMDC material, as well as the orientation of receptors on their surfaces. The uncontrolled orientation of receptors and screening issues due to crossing the Debye screening length while functionalizing TMDC materials is a big challenge in this field. To address these issues, we introduce a combination of high-quality monolayer WSe₂ with our designed Pyrene-based receptor moiety for its ordered orientation onto the WSe₂ FET biosensor. A monolayer WSe₂ sheet is utilized to fab

SUBMITTER: Zafar MS 

PROVIDER: S-EPMC9028725 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature