Modeling and Simulation of a TFET-Based Label-Free Biosensor with Enhanced Sensitivity

This study discusses the use of a triple material gate (TMG) junctionless tunnel field-effect transistor (JLTFET) as biosensor to identify different protein molecules. Among plethora existing types biosensors, FET/TFET-based devices are fully compatible with conventional integrated circuits. JLTFETs preferred over TFETs and JLFETs because their ease fabrication superior biosensing performance. Biomolecules trapped by cavities etched across gates. An analytical mathematical model TMG asymmetrical hetero-dielectric JLTFET is derived here for first time. The TCAD simulator used examine performance dielectrically modulated label-free biosensor. voltage current sensitivity device effects cavity size, bioanalyte electric charge, fill factor, location on also investigated. relative found be about 1013. Besides showing an enhanced compared other FET- TFET-based proves itself convenient low-power applications, thus opening up numerous directions future research applications.