A Dual Gate Junctionless FinFET for Biosensing Applications

Soma, Umamaheshwar

doi:10.1007/s12633-021-01603-5

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…al. [19] Gate and Drain contacts of the simulated TG@DMJLFET are positioned on either side of the channel symmetrically. The drain and source contact-materials were elected as Gold and Gate contact material is nominated as Nickel respectively.…”

Section: Device Architecture With Simulation Arrangementmentioning

confidence: 99%

“…𝐿 and 𝐿 optimum values are set in such a way so that maximum alteration in threshold voltage (∆𝑉 ) will be achieved while varying k values of bio-molecules from 1.57 up to 12.00. [19,20]. Table 1 illuminates the versatile design factors of the Trench like structured Dual-Gate Junctionless Field Effect Transistor (TG@DMJLFET) and Table 2 depicts…”

Section: Device Architecture With Simulation Arrangementmentioning

confidence: 99%

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Trench Dual Gate Junctionless Field Effect Transistor

DHAR,

Poddar,

Roy

2024

JICS

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Diversified biomolecules sensing is turning out to be the most promising area of research due to ever decreasing healthy lifestyle. Field effect transistorized biosensing approach puts its signature as label free, portable and also very careful pathway. In this present work a trench structured dielectric modulated double gate junction-less field effect transistor (TG-DMJLFET) is urbanized using SILVACO ATLAS simulator for label free detection of biomolecules. The developed structure has two vertically positioned gates in distinct trenches. For immobilizing biomolecules, two cavities are formed in the gate oxide region for dielectric modulation. The dielectric constant (k) has been varied over a wide range of 1.54 (Uricase) to 12(Gelatin) signifying the sensing of diverse charged biomolecules. The sensitivity is evaluated in terms of threshold voltage shift and transconductance . The in-depth electrostatic analysis is illustrated in terms of central potential ,energy band diagram ,drive current and also by the depiction of the electric field .In case of charged biomolecules, the shift in threshold voltage is obtained as 350 mV for change in the di-electric constant (k) ranging from 1.54 to 12. The transconductance alteration is observed as 1.94×10-5 when the k is changed from 3.46 to 12 .The device has showed excellent performance in biomolecules sensing.

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Section: Device Architecture With Simulation Arrangementmentioning

confidence: 99%

Section: Device Architecture With Simulation Arrangementmentioning

confidence: 99%