Modeling and Simulation Investigation of Sensitivity of Symmetric Split Gate Junctionless FET for Biosensing Application

Ajay, Ajay; Narang, Rakhi; Saxena, Manoj; Gupta, Mridula

doi:10.1109/jsen.2017.2716102

Cited by 78 publications

(27 citation statements)

References 37 publications

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“…From Fig. 4(c), we nd the selectivity of fully hybridized stage is approximately 7x10 4 and 100 with respect to ssDNA stage and partially hybridized stage and a reduction of almost 61% can be seen in between these two cases. Thus, we may conclude that MoTe 2 based AMFET can differentiate between levels of DNA detection with a good level precision.…”

Section: A Dna Detection Without Considering Dna-electrode Interactionmentioning

confidence: 84%

“…[1,2].The reason behind the popularity of label-free biosensors is its immediate response capability for bio-analyte identi cation without complex probe arrangements. A large amount of research has been done on biosensors for the detection of proteins, viruses, and DNA [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…However, the neutral molecule detection is not so overwhelming in the case of ISFET [11] In comparison to (ISFET), which on the charge interaction effect, Dielectric Modulated Field-Effect Transistors (DM-FET) are capable of detection of non-charged biomolecules & thus have a wider perspective. Widescale research has been carried on DMFET biosensors for years [3][4][5][6][7][8][9][10]. While some studies focus on increasing the sensitivity of DMFET biosensors, others emphasized unveiling the underlying physics of such label-free biosensors.…”

Section: Introductionmentioning

confidence: 99%

“…Changes in electrical properties quantify the sensitivity for label-free detection for both neutral & charged molecules viz. biotin-streptavidin & DNA [3][4][5][6][7][8][9][10]. The approach played a vital role in making DMFET widely explored structure for label-free biosensors with inherent advantages like higher sensitivity, power consumption, higher scalability & fabrication simplicity.…”

Section: Introductionmentioning

confidence: 99%

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Investigation into MoTe2 Based Dielectric Modulated AMFET Biosensor for Label-Free Detection of DNA Including Electric Variational Effects

Kanrar

Sarkar

2021

Silicon

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Due to limitations of Silicon, Transition metal dichalcogenides (TMD) based biosensors are popular in the recent times. In TMD family, Molybdenum telluride (MoTe2) is being studied a lot for different biosensing application. However, for DNA detection using TMD based DMFET, the effect of the electrical variations in DNA has not been studied before. Also, the impact of DNA-Electrode interaction on transducer level of DMFET is yet to be studied. In this article, we have proposed a Molybdenum telluride (MoTe2) based Accumulation Mode Field Effect Transistor (AMFET) for possible dielectric modulated biosensing application. The study is focused on DNA detection including the electric variations of DNA due to surface interaction. We have done a circuit level analysis of the proposed structure for having deeper insights into its performance under various DNA orientations in the nanogap. We have also presented a benchmarking to highlight the superior sensitivity of the proposed structure (ΔVth = 700mV at K =8). The impact of back-gate bias is also included. We have obtained signi cant variation of threshold voltage shift for different orientation in the proposed structure suggesting strong impact of electrical variations in DNA in biosensing performance of MoTe2 AMFET.

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Section: A Dna Detection Without Considering Dna-electrode Interactionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation into MoTe2 Based Dielectric Modulated AMFET Biosensor for Label-Free Detection of DNA Including Electric Variational Effects

Kanrar

Sarkar

2021

Silicon

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“…The modulation of the coupling between gate and channel based on different charged/noncharged bio-analytes with varied range of permittivity is the working basis of dielectric modulated FET based biosensor [13]. To cite a few, APTES (K=3.57), Streptavidin (K=2.1), Biotin (K=2.63) [14], food proteins such as Gluten (K=5), Keratin (K=10), Zenin (K=7), Gelatin (K=12) [15] [19][20], surrounding gate MOSFET [21] have been reported.…”

Section: Introductionmentioning

confidence: 99%

Noise Immune Dielectric Modulated Dual Trench Transparent Gate Engineered MOSFET as a Label Free Biosensor: Proposal and Investigation

Sen

Goswami

et al. 2021

Preprint

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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.

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Analytical investigation of a triple surrounding gate germanium source metal–oxide–semiconductor field‐effect transistor with step graded channel for biosensing applications

Das

Rewari

Kanaujia

et al. 2023

Int J Numerical Modelling

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This paper proposes a compact analytical model and comprehensively investigates the biosensing performance of a novel dielectric modulated triple surrounding gate germanium source metal–oxide–semiconductor field‐effect transistor with a step graded channel. Solving the 2D Poisson's equation yields an analytical expression of threshold voltage, channel potential, drain current and sub threshold swing. The sensitivity variation in the biosensor has been thoroughly studied by varying different device parameters to investigate its biosensing performance. Graded doping in channel offers enhanced sensitivity than a non‐graded doped channel when the doping of the channel is more near the drain end than source end which is due to stronger electric field and gate capacitance. Effect of fill‐in factor for different biomolecules on the sensitivity has been thoroughly discussed. Different analytical results show an excellent agreement with the simulations done on SILVACO ATLAS TCAD simulator.

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Modeling and Simulation Investigation of Sensitivity of Symmetric Split Gate Junctionless FET for Biosensing Application

Cited by 78 publications

References 37 publications

Investigation into MoTe2 Based Dielectric Modulated AMFET Biosensor for Label-Free Detection of DNA Including Electric Variational Effects

Investigation into MoTe2 Based Dielectric Modulated AMFET Biosensor for Label-Free Detection of DNA Including Electric Variational Effects

Noise Immune Dielectric Modulated Dual Trench Transparent Gate Engineered MOSFET as a Label Free Biosensor: Proposal and Investigation

Analytical investigation of a triple surrounding gate germanium source metal–oxide–semiconductor field‐effect transistor with step graded channel for biosensing applications

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