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Article Abstract

In this paper, a dielectric-modulated buried source horizontally double-gate TFET-based (DM-BSHDG TFET) biosensors is proposed for detection of biomolecules. The channel partially encloses the buried source, and the drain half surrounds the channel. Horizontally double gate is located above the source and channel. The performance of the DM-BDSTG TFET-based biosensors was evaluated by two-dimensional simulation of TCAD (ATLAS). Biomolecules can be distinguished due to the dielectric constants of different biomolecules placed in the cavity and will lead to different transfer characteristics of the device. The results show that the drain current sensitivity can reach 1.41 × 10 when the gate-source voltage is 2 V. In addition, the subthreshold swing sensitivity can reach 0.9. Therefore, the DM-BSHDG TFET-based biosensors can provide excellent detection and recognition capabilities.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12332688PMC
http://dx.doi.org/10.1021/acsomega.5c02005DOI Listing

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