The impact of different channel doping concentrations on the performance of polycrystalline silicon nanowire field-effect transistor biosensor

Fathil, M. F. M.; Tamjis, N.; Arshad, M. K. Md; Rahman, Shaharin Fadzli Abd; Ayub, R. M.; Ruslinda, A. Rahim; Hashim, U.; Ong, C. C.; Abdullah, R. F.; Ghazali, M. H. M.

doi:10.1063/1.5080819

Cited by 7 publications

(1 citation statement)

References 12 publications

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“…al [10] have discussed the sensitivity of biosensors in terms of threshold voltage change along with different parameter variations. Although, not much related work have been done in past [11][12][13][14][15]. Recently, Yogesh Pratap et.…”

Section: Introductionmentioning

confidence: 99%

Threshold Voltage Sensitivity Analysis of Surrounding Gate Mosfet for Biosensing Applications

Das

Rewari

Deswal

et al. 2022

Preprint

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A simulation based novel and unique approach of controlling and modulating the threshold voltage sensitivity of a short channel surrounding gate MOSFET biosensor is investigated for improved biosensing applications. Different results show that the biosensor with symmetric doping is more sensitive to charged and neutral biomolecules when compared with the asymmetric doping. Threshold voltage sensitivity and subthreshold slope sensitivity of 4.5 and 0.44 have been obtained which shows the significance of doping attributed sensitivity. It is so find that sensitivity increases on increasing drain to source voltage because of stronger horizontal electric field across the channel. A remarkable percentage change due to the doping variation shows the improved biosensing action in terms of threshold voltage change and subthreshold slope change.

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