Affiliation:
1. graphic era deemed university
2. University of Allahabad
Abstract
Abstract
In this article, a label-free biosensor with a single cavity that uses a negative capacitance heterojunction charge-plasma-based tunnel FET (NC-HJ-CP-TFET) is presented and examined. To increase ON-state current, ferroelectric material (Si:HfO2) has been added to a stack with a gate insulator and low energy bandgap material (Si0.5Ge0.5). In terms of biosensing properties, comparisons have been made between NC-HJ-CP-TFET and Si-based NC-CP-TFET. The different bio-analytes employed in this work are Streptavidin (K = 2.1), APTES (K = 3.57), Bacteriophage (K = 6.3), Protein (K = 8), and Gelatin (K = 12). Benchmarking is done to compare prospective biosensors to literature that has already been reported. The maximum ON-state current sensitivity (SION), transconductance-based sensitivity (Sgm), ION/IOFF, and subthreshold swing (SS) obtained are 2×108, 4×108, 2.3×1011, and 17.9 mV/decade, respectively, for NC-HJ-CP-TFET with permittivity of K = 12 with fully filled nanogap of neutral bio-analyte..
Publisher
Research Square Platform LLC
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