Abstract
Investigation into MoTe2 Based Dielectric Modulated AMFET Biosensor for Label-Free Detection of DNA Including Electric Variational Effects
Highlights
To serve a larger spectrum of humanity, biosensors have been evolved and enabled for label-free detection in the arena of agriculture, medicine, ecological surveys, food industry, etc. [1, 2].The reason behind the popularity of label-free biosensors is its immediate response capability for bio-analyte identification without complex probe arrangements
Due to limitations of Silicon, Transition metal dichalcogenides (TMD) based biosensors are popular in the recent times
We have proposed a Molybdenum telluride (MoTe2) based Accumulation Mode Field Effect Transistor (AMFET) for possible dielectric modulated biosensing application
Summary
To serve a larger spectrum of humanity, biosensors have been evolved and enabled for label-free detection in the arena of agriculture, medicine, ecological surveys, food industry, etc. [1, 2].The reason behind the popularity of label-free biosensors is its immediate response capability for bio-analyte identification without complex probe arrangements. Changes in electrical properties quantify the sensitivity for label-free detection for both neutral & charged molecules viz. At biosensor cavity thickness touching sub-10 nm regime, several research works are focusing on FinFET & nanowire FET for detection of DNA, Proteins, viruses, etc. After isolation of graphene in 2004, research works in ultra-scaled DMFET biosensor has been flourishing based on TMD (MoS2, MoSe2, WS2, WSe2 etc.) material. Hwang et al has reported crumpled graphene 2D material-based FET biosensor with ultrasensitive detection of DNA and RNA molecules with significantly low limit of detection (LOD) [16]. As these lead to significant performance degradation, the minimum detection limit becomes a vital performance parameter in addition to sensitivity in the scaled regime In this manuscript, we have proposed a MoTe2 based Accumulation Mode Field Effect Transistor (AMFET) for biosensing application. The study has been conducted on both device and circuit levels
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