Abstract
The manuscript deals with a novel biosensor structure and reports the effects of including thermionic emission in an electrically doped Tunnel FET. It comprises a comparative analysis between two biosensors based on a pure tunnelling transistor and a transistor which combines the tunnelling and thermionic emission carrier transport in the same device. The manuscript first discusses the physics of Tunnel FET when vertical thermionic emission is included with horizontal tunnelling through an additional electron source (AES). Subsequently, the biosensor is designed using the combined mechanism structure a comparative analysis of biosensors is done in terms of various DC and RF parameters for different biomolecules of proteins. Moreover, workfunction engineering is implemented to the combined mechanism biosensor and sensitivity is analyzed by drain current and transconductance.
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