Deep Insights of SiGe PNPN Tunnel FET Cavity Based Biosensors for Label Free Detection

This paper reports a benchmark study on tunnel FET (TFET) biosensors by considering the effect of analyte conjugation in the nanogap cavity. A comparative investigation is carried out for the PNPN TFET biosensor with different source materials (i) Si ( E G = 1.1 eV) (ii) S i 0.5 G e 0.5 ( E G = 0.78...

Full description

Saved in:
Bibliographic Details
Published in:SILICON 2023-02, Vol.15 (4), p.1821-1834
Main Authors: Vastrad, Sakshi, Rajakumari, V., Pradhan, K. P.
Format: Article
Language:English
Subjects:
Biomolecules
Biosensors
Chemistry
Chemistry and Materials Science
Conjugation
Electric fields
Electrons
Environmental Chemistry
Inorganic Chemistry
Lasers
Materials Science
Optical Devices
Optics
Optimization techniques
Original Paper
Parameter sensitivity
Photonics
Polymer Sciences
Simulation
Tunnels
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper reports a benchmark study on tunnel FET (TFET) biosensors by considering the effect of analyte conjugation in the nanogap cavity. A comparative investigation is carried out for the PNPN TFET biosensor with different source materials (i) Si ( E G = 1.1 eV) (ii) S i 0.5 G e 0.5 ( E G = 0.78 eV). A wide range of electrical characteristics are analyzed to predict the high sensitivity for both material cases. Further, the uniform variation of the biomolecule length ( L b i o ) along the nanogap cavity with neutral and charged analytes is investigated. Again, the impact of non-uniform filled profiles of the biomolecules such as step profile, concave, and convex in the cavity are systematically reported. Finally, the sensitivity as a parameter to measure the shifting of electrical characteristics for the biosensors is reported in a comparative manner.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-022-02085-9