Abstract:In this work, on the basis of dielectric modulation, a heterojunction (HETJ) surrounding gate (SRG) tunnel field effect (TFET) biosensor has been proposed. Due to the presence of biomolecules having different dielectric constant in the nanogap region of the biosensor, sensing has been performed. The sensitivity of the biosensor has been indicated using the traditional change in threshold voltage as well as in terms of I ON /I OFF ratio. The results obtained from TCAD device simulation reveals that the proposed… Show more
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