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Impact of Channel Epilayer Induced Corner-Effect on the Sensing Performance of a Unique PTFET-Based Biosensor (Epi-PTFET-Biosensor)
Gayen S., , Chattopadhyay A.
Published in Springer Science and Business Media Deutschland GmbH
2021
Volume: 755
   
Pages: 81 - 92
Abstract
In the paper, for the first time, a unique pTFET-based biosensor device having a channel epilayer (epi-pTFET-biosensor) has been introduced and its performance in the sensing domain has been studied through a rigorous analysis based on five different sensitivity parameters, followed by the determination of detectability of the proposed device and an optimum length-window of the nanogap cavity for the successful detection of five different types of bio-molecules, viz., Protein-G, Ferrocytochrome-C, Ferricytochrome-C, Myoglobin, and Apomyoglobin. Interestingly, it has been found that the undesired corner-effect, generally known for its detrimental impact on the subthreshold characteristics of the MOS-based structures, when generated by the presence of a corner due to the introduced epilayer, actually, comes to the aid of the proposed epi-pTFET-biosensor device by enhancing its detectability, compared to its equivalent conventional SOI pTFET sensor device by a great degree, yet maintaining significantly good sensitivity matrices throughout. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About the journal
JournalLecture Notes in Electrical Engineering
PublisherSpringer Science and Business Media Deutschland GmbH
ISSN18761100
Open AccessNo