A Detailed Review on Growth and Evolution of TFET Biosensor for Biosensing Application

Researchers around the world identified the importance of biosensors to detect biological life. The growth of efficient technology to aid the development of biosensors is need for developing efficient biosensors with high sensitivity for detecting the presence of neutral and charged biomolecules. The requirement is to detect the lowest possible concentration of biomolecules for enabling faster response time. In this chapter, a detailed in-depth introduction of tunnel FET-based biosensor is presented from its evolution to its architectural and qualitative growth. TFET evolved as a replacement of a highly efficient FET biosensor due to its limitation on the subthreshold swing, higher leakage current, and minimum response time, which is improved efficiently because of the TFET band-to-band tunneling mechanism of charge carriers. The chapter also presents the improvement in sensitivity parameters and its viable improvement area concerning various factors affecting it. The chapter will be able to provide prospective researchers having an interest in the field of the biosensor to identify and design more efficient biosensors for continuing its growth for various biosensing applications.