All Photos(5)




Graphene FET chip


Sign Into View Organizational & Contract Pricing

2-probe FET device, 2-probe Graphene FET sensor, Chemical gated Graphene FET, GFET S20, Graphene field effect transistor chip S20


Absolute Maximum Ratings
Maximum gate-source voltage: ± 50 V
Maximum temperature rating: 150 °C
Maximum drain-source current density: 107 A/cm2

Chip dimensions: 10 mm x 10 mm
Chip thickness: 675 μm
Dirac point: < 50 V
Yield >75%

Encapsulation: 50 nm Al2O3 + 100 nm Si3N4
Gate oxide materials: 90 nm SiO2
Graphene field-effect mobility: >1000 cm2/V·s
Monolayer CVD grown Graphene based 2-probe field effect transistors (FET).
Number of devices per chip: 12
Resistivity of substrate: 1-10 Ω·cm
Metallization: Chromium/Gold-Palladium 2/50 nm

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item


Graphene FET chip



Graphene FET chip



Graphene oxide



Graphene oxide

General description

Device configuration:

The graphene FET-S20 chip is designed for measurements in liquid medium. This chip provides 12 graphene devices, with encapsulation on the metal pads to avoid degradation and reduce leakage currents, and the probe pads located near the periphery of the chip. It also includes a non-encapsulated electrode at the center of the chip, which allows liquid gating without the need of an external gate electrode.
Graphene FET chip (GFET-S20 chip) is a graphene based field effect transistor which can be coated on silicon substrate by atmospheric pressure chemical vapor deposition (CVD). It also has similar gate insulators in the source and drain.


  • Bioelectronics
  • FET based sensor research for active materials deposited on graphene
  • Clinical applications
  • Biosensors
GFET-S20 chip can be used as a biosensor and a chemical sensor for biological applications.

Features and Benefits

Device Features:

  • State-of-the-art GFETs utilizing consistently high-quality CVD monolayer graphene
  • Metallic contacts and metal/graphene interface are encapsulated to avoid degradation and reduce leakage current in liquid environment
  • Perfect platform device for new sensor research and development
  • 12 individual GFETs per chip
  • A central gate electrode

Storage Class

11 - Combustible Solids




Not applicable


Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).


Product Number
Pack Size/Quantity

Additional examples:





enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Review-Field-Effect Transistor Biosensing: Devices and Clinical Applications
Syu Y C, et al.
ECS journal of solid state science and technology : JSS, 7(7), Q3196-Q3207 (2018)
Improved sensitivity of a graphene FET biosensor using porphyrin linkers
Kawata T, et al.
Japanese Journal of Applied Physics, 57(6), 065103/1-065103/4 (2018)
Michael T Hwang et al.
Advanced materials (Deerfield Beach, Fla.), e1802440-e1802440 (2018-07-10)
Electronic DNA-biosensor with a single nucleotide resolution capability is highly desirable for personalized medicine. However, existing DNA-biosensors, especially single nucleotide polymorphism (SNP) detection systems, have poor sensitivity and specificity and lack real-time wireless data transmission. DNA-tweezers with graphene field effect
MoS2-graphene heterostructures as efficient organic compounds sensing 2D materials
Pham T, et al.
Carbon, 142, 504- 512 (2019)
Graphene field effect transistors on flexible substrate: stable process and high RF performance
2016 11th European microwave integrated circuits conference, 7(1), 165-168 (2016)


Graphene nanoribbons (GNRs) are quasi-one-dimensional narrow strips of graphene comprised of sp2-hybridized carbon atoms arranged into hexagonal honeycomb lattice configurations.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service