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Research Article
DIPANJAN SEN
Jadavpur University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-5781-4027
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This work is licensed under a CC BY 4.0 License. Read Full License
In this work, we have examined and proposed a dielectrically modulated biosensor based on the dual trench transparent gate engineered MOSFET (DM DT GE-MOSFET) for label-free detection of biomolecules with enhanced sensitivity and efficiency. Different sensing parameters such as the ION/IOFF, threshold voltage shift have been evaluated to validate the sensing metric for the proposed device. Additionally, the SVth (Vth Sensitivity) has been also analyzed by considering the charged (positive and negative) biomolecules. In addition to this, the RF sensing parameters such as the transconductance gain and cut-off frequency have been also taken into account to provide a better insight into the sensitivity analysis of the proposed device. Furthermore, the linearity, distortion and noise immunity of the device has been evaluated to check the overall performance of the biosensor at high frequency (GHz). Moreover, the results indicate that, the proposed biosensor exhibits a SVth of 0.68 for the positively charged biomolecules at a very low drain bias (0.2 V). Therefore, the proposed device can be used as an alternative to the conventional FET-based biosensors.
Keywords
Transparent Gate, Dual Trench Cavity, Inner Gate, Dielectric Modulation, Biosensor, Noise Assessment
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CURRENT STATUS: Under Review
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Posted 28 May, 2021
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Received 19 Feb, 2021
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Electrical Engineering
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This preprint is under consideration at Journal of Computational Electronics. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
DIPANJAN SEN
Jadavpur University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-5781-4027
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 28 May, 2021
No community comments so far
Reviews received
Received 19 Feb, 2021
Reviewers invited
Invitations sent on 19 Feb, 2021
First submitted
On 04 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Electrical Engineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
In this work, we have examined and proposed a dielectrically modulated biosensor based on the dual trench transparent gate engineered MOSFET (DM DT GE-MOSFET) for label-free detection of biomolecules with enhanced sensitivity and efficiency. Different sensing parameters such as the ION/IOFF, threshold voltage shift have been evaluated to validate the sensing metric for the proposed device. Additionally, the SVth (Vth Sensitivity) has been also analyzed by considering the charged (positive and negative) biomolecules. In addition to this, the RF sensing parameters such as the transconductance gain and cut-off frequency have been also taken into account to provide a better insight into the sensitivity analysis of the proposed device. Furthermore, the linearity, distortion and noise immunity of the device has been evaluated to check the overall performance of the biosensor at high frequency (GHz). Moreover, the results indicate that, the proposed biosensor exhibits a SVth of 0.68 for the positively charged biomolecules at a very low drain bias (0.2 V). Therefore, the proposed device can be used as an alternative to the conventional FET-based biosensors.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
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