Table 5 Comparison of TFET-based biosensors employing dielectric modulation for protein or biomolecule detection.

From: Enhanced RF analog linearity in metal gate modulated heterojunction based uniform TFET for label-free detection of dengue NS1 protein

Name of the biosensor

VG,VD (V) and κ value

Name of the analyte

Gate length (nm)

ON current (A/µm)

OFF current (A/µm)

ION/IOFF ratio

Refs.

Si/InAs/Ge JLTFET biosensor

0.5, 0.5 & 12

Dielectrics

20

1.15 × 10–5

1.12 × 10–14

1.75 × 109

77

DMG-HJ-SOI-TFET biosensor

0.5, 0.5 & 12

CREB2 protein

15

~ 10–5

10–15

1010

100

FFC Bio-TFET biosensor

1, 1 & 12

Gelatin

50

~ 10–8

10–11

103

101

DG JLTFET biosensor

1, 1 & 7

Outer shell of human protein

20

~ 10–7

5 × 10–15

108

85

Poc-MGOT-FET

1.5, 1 & 32

T47D cancer cell

50

10–5

~ 10–16

1011

95

DG-bioHTFET

1.5, 1 & 5

Low hydrated SARS CoV-2 protein

20

2.32 × 10–5

~ 10–9

3.55 × 105

102

A-SD-HJ-DD-UTFET biosensor

2, 1 & 78.7

Dengue NS1 protein

20

2.3 × 10–4

8.12 × 10–17

2.83 × 1012

This work

  1. JLTFET - Junctionless TFET, DMG-HJ-SOI-TFET - Dual Material Gate InSb/Si (Indium Antimonide/silicon) Heterojunction Silicon on Insulator TFET, FFC Bio-TFET - Fringe Field Capacitance Bio-TFET, DG JLTFET - Double Gate JLTFET, Poc-MGOTFET - Pocket Modified Gate Oxide TFET, DG-bioHTFET - Dielectrically Modulated Double Gate Bio-Heterojunction TFET.
Back to article page