Is accumulation or inversion mode dielectric modulated FET better for label-free biosensing?: A comparative investigation

Sariki, Akhil; Rao, K. Venkata; Chandrasekar, L. Bruno; Shaik, Rameez Raja; Pradhan, K P

doi:10.1016/j.aeue.2021.153791

Cited by 7 publications

(2 citation statements)

References 29 publications

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“…Highly-doped semiconducting regions with same-for Accumulation Mode FET (AM-FET) [6,[34][35][36][37][38][39] or Junctionless FET (JL-FET) [6,[34][35][36][37][38][39][40][41][42][43][44] -or different-for Inversion Mode FET (IM-FET) [6,[34][35][36][37][38][39][40][41][42][43] -doping type with respect to the channel doping can be used for drain and source terminals; the use of metallic regions may also result in the formation of AM-FET, [6,34,[45][46][47][48] JL-FET, [6,34] or Schottky barrier FET (SB-FET) [6,34,[48][49][50][51][52][53][54] depending on the electric properties (i.e., work function) of metal and channel materials. Modulation of the I DS with V GS occurs through a change of the conductivity of the semiconducting cha...…”

Section: Device Structure and Working Principle Of Field Effect Trans...mentioning

confidence: 99%

1D and 2D Field Effect Transistors in Gas Sensing: A Comprehensive Review

Paghi

Mariani

Barillaro

2023

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Rapid progress in the synthesis and fundamental understanding of 1D and 2D materials have solicited the incorporation of these nanomaterials into sensor architectures, especially field effect transistors (FETs), for the monitoring of gas and vapor in environmental, food quality, and healthcare applications. Yet, several challenges have remained unaddressed toward the fabrication of 1D and 2D FET gas sensors for real‐field applications, which are related to properties, synthesis, and integration of 1D and 2D materials into the transistor architecture. This review paper encompasses the whole assortment of 1D—i.e., metal oxide semiconductors (MOXs), silicon nanowires (SiNWs), carbon nanotubes (CNTs)—and 2D—i.e., graphene, transition metal dichalcogenides (TMD), phosphorene—materials used in FET gas sensors, critically dissecting how the material synthesis, surface functionalization, and transistor fabrication impact on electrical versus sensing properties of these devices. Eventually, pros and cons of 1D and 2D FETs for gas and vapor sensing applications are discussed, pointing out weakness and highlighting future directions.

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Section: Device Structure and Working Principle Of Field Effect Trans...mentioning

confidence: 99%

1D and 2D Field Effect Transistors in Gas Sensing: A Comprehensive Review

Paghi

Mariani

Barillaro

2023

Small

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“…In the growing field of intelligent medicine [1][2][3], rapid DNA sequencing methods are critical tools that have been targeted in the last decades [4][5][6]. These developing sequencers utilize any signal due to any changes in the electrical conductivity, ionic current, plasmonic resonances, and surface-enhanced Raman spectroscopy to determine the type of the DNA nucleotides: adenine (A), cytosine (C), guanine (G), and thymine (T) [5][6][7].…”

Section: Introductionsmentioning

confidence: 99%

An electro-optical system for improving graphene nanopore DNA Sequencing

Fotouhi

2022

Scientia Iranica

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I propose a new electro-optical system for sequencing single-stranded DNA molecules. The localized plasmons in graphene combined with the nanopore-based DNA translocation have been suggested for sequencing DNA molecules and decreasing the translocation speed. These localized surface plasmon resonances in the graphene nanopore have three dominant modes. Every-mode peak wavelength is shifted while the DNA nucleobases are presented to the nanopore. The ultraviolet photodiodes with narrow-band filters can separate each mode individually. Then, the electrical-current to voltage convertor, differential pairs based on the bipolar transistors, combine all modes in the effective output voltage. The output voltage level of the circuit is sensitive to the DNA presence and is unique for each DNA nucleobase. Analyzes have been performed for different central wavelengths and spectral width of the light source.Results show that the best sensitivity to the DNA molecule is 6.04, and the best selectivity is 1.1.These factors are directly related to the method's applicability for DNA translocation sensing and DNA sequencing; they are enormously improved. The proposed method and results shed light on a higher selectivity for DNA nucleobases which is the main bottleneck for nanopore DNA sequencing.

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