TY - GEN
T1 - Analytical Model of Dual Cavity Nanowire Tunnel FET-based Dielectric Modulated Biosensor
AU - Sarkhel, Saheli
AU - Rathore, Sunil
AU - Saha, Priyanka
AU - Dixit, Ankit
AU - Saquib, Taha
AU - Jaisawal, Rajeewa Kumar
AU - Kondekar, P. N.
AU - Bagga, Navjeet
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In a general-purpose FET-based dielectric modulated (DM) biosensor, the biomolecule's presence can be identified by investigating the change in channel conduction. This work demonstrates an analytical model of a Dual Cavity Nanowire (DCN) Tunnel FET-based DM biosensor for label-free biosensing. We opted for a gate-all-around architecture that provides superior gate controllability over the channel charge compared to the planar devices. Using the Poisson equation and Kane's Model, we framed the analytical model of the electric field, potential and drain current, which is also validated by TCAD results. The permittivity change of the cavity reflects the drain current variation, which could be employed as a sensing parameter to identify a wide range of biomolecules. Further, biomolecules may carry charges (positive/negative), which can be identified using trap charge analysis of the cavity region. Thus, the proposed work provides a detailed insight into sensing the existence of charged and neutral biomolecules within the cavity.
AB - In a general-purpose FET-based dielectric modulated (DM) biosensor, the biomolecule's presence can be identified by investigating the change in channel conduction. This work demonstrates an analytical model of a Dual Cavity Nanowire (DCN) Tunnel FET-based DM biosensor for label-free biosensing. We opted for a gate-all-around architecture that provides superior gate controllability over the channel charge compared to the planar devices. Using the Poisson equation and Kane's Model, we framed the analytical model of the electric field, potential and drain current, which is also validated by TCAD results. The permittivity change of the cavity reflects the drain current variation, which could be employed as a sensing parameter to identify a wide range of biomolecules. Further, biomolecules may carry charges (positive/negative), which can be identified using trap charge analysis of the cavity region. Thus, the proposed work provides a detailed insight into sensing the existence of charged and neutral biomolecules within the cavity.
UR - https://www.scopus.com/pages/publications/85162167840
UR - https://www.scopus.com/inward/citedby.url?scp=85162167840&partnerID=8YFLogxK
U2 - 10.1109/DevIC57758.2023.10134885
DO - 10.1109/DevIC57758.2023.10134885
M3 - Conference contribution
AN - SCOPUS:85162167840
T3 - Proceedings of 5th International Conference on 2023 Devices for Integrated Circuit, DevIC 2023
SP - 470
EP - 475
BT - Proceedings of 5th International Conference on 2023 Devices for Integrated Circuit, DevIC 2023
A2 - Sarkar, Angsuman
A2 - Nandi, Sandip
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th International Conference on Devices for Integrated Circuit, DevIC 2023
Y2 - 7 April 2023 through 8 April 2023
ER -
