Abstract
The present study presents an innovative idea: an original design for a label-free biosensor utilizing H-shape channel configuration within a dielectrically modulated (DM) double-gate TFET (DGTFET) framework, which includes the incorporation of a drain pocket (DP). This design concept is introduced In this study, an analytical model for the DM DPDG-TFET has been created for the first time was formulated and subsequently verified through comparison with industry-standard simulation software (Silvaco TCAD). In this paper we have examine both the biosensor's sensitivity and its effectiveness when employed as a tunnel field-effect transistor (TFET) device. A comprehensive analysis of the device's performance has been conducted. The innovative configuration of the suggested TFET results in heightened sensitivity. Incorporating a drain pocket (DP) at the junction between the drain and channel effectively eliminates ambipolarity, showcasing a successful approach. The H-shape DM DPDGTFET design demonstrates its superiority over various devices documented in the literature. The presence or lack of electric charge in various biomolecules is examined in order to evaluate the device's sensitivity as a label-free biosensor.
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