Charge-plasma Persuaded Underlapping Dielectric Modulated Bio-tunnel FET Realizing Repulsive Steric Effect

Amit Bhattacharyya, Ayush Sarkar, Swapnendu Sarkar, Shristi Das, Soumyadeep Ghosh, Papiya Debnath, Debashis De and Manash Chanda

Abstract

Here, charge-plasma (CP) underlapping dielectric modulated tunnel FET supported biosensor (U-CP-DM-Bio-TFET) is offered. The variations of biomolecular permittivity (k) and charge density (N_f), nanogap dimensions (L_cavity, T_cavity) at different drain/source potential (V_ds) influence ON-state current (I_ON), as well as sensitivity. Moreover, repulsive steric effects (RSE) inside nanogap sections can diminish the gap among theoretical and practical surroundings. ATLAS device simulator is employed to authenticate the working capacity of the suggested model. It has been examined that the suggested model might be a probable contestant supporting label-free biosensor realizing RSE matter. Recommended model presents almost 69% imprecision in I_ON as allowing for RSE perspective.

Published on: December 21, 2023
doi: 10.17756/nwj.2023-s5-012
Citation: Bhattacharyya A, Sarkar A, Sarkar S, Das S, Ghosh S, et al. 2023. Charge-plasma Persuaded Underlapping Dielectric Modulated Bio-tunnel FET Realizing Repulsive Steric Effect. NanoWorld J 9(S5): S62-S66.

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