Transfer characteristics of graphene based field effect transistor (GFET) for biosensing application

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The unique monoatomic structure of graphene makes it as an enticing material to be used in sensitive detection of analytes in biosensing applications. Implementation of graphene as a conducting channel in graphene based field effect transistor (GFET) allows ultrasensitive detection of analytes in a targeted sample. Herein, we have investigated the transfer characteristics of GFET for biosensing applications. GFET was modelled and simulated using Lumerical DEVICE charge transport solver (DEVICE CT). The device shows ambipolar curve and achieved minimum conductivity of 0.00012 A at Dirac point. However, the Dirac point shifts to the right and introduces significant change in the minimum conductivity as drain voltage bias is increased. This shows that external factors such as doping can influence the surface charges of the GFET and this property of graphene is crucial in ultrasensitive detection of analytes in biosensing applications.

Original languageEnglish
Title of host publicationProceedings of the 2017 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages88-91
Number of pages4
ISBN (Electronic)9781509040285
DOIs
Publication statusPublished - 16 Oct 2017
Event11th IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017 - Batu Ferringhi, Penang, Malaysia
Duration: 23 Aug 201725 Aug 2017

Other

Other11th IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017
CountryMalaysia
CityBatu Ferringhi, Penang
Period23/8/1725/8/17

Fingerprint

Field effect transistors
Graphene
graphene
field effect transistors
conductivity
Surface charge
Bias voltage
Charge transfer
Doping (additives)
conduction
shift
electric potential
curves

Keywords

  • biosensing
  • Dirac point
  • GFET
  • Transfer characteristics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation
  • Biomedical Engineering

Cite this

Selvarajan, R. S., Hamzah, A. A., & Yeop Majlis, B. (2017). Transfer characteristics of graphene based field effect transistor (GFET) for biosensing application. In Proceedings of the 2017 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017 (pp. 88-91). [8069127] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RSM.2017.8069127

Transfer characteristics of graphene based field effect transistor (GFET) for biosensing application. / Selvarajan, Reena Sri; Hamzah, Azrul Azlan; Yeop Majlis, Burhanuddin.

Proceedings of the 2017 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 88-91 8069127.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Selvarajan, RS, Hamzah, AA & Yeop Majlis, B 2017, Transfer characteristics of graphene based field effect transistor (GFET) for biosensing application. in Proceedings of the 2017 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017., 8069127, Institute of Electrical and Electronics Engineers Inc., pp. 88-91, 11th IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017, Batu Ferringhi, Penang, Malaysia, 23/8/17. https://doi.org/10.1109/RSM.2017.8069127
Selvarajan RS, Hamzah AA, Yeop Majlis B. Transfer characteristics of graphene based field effect transistor (GFET) for biosensing application. In Proceedings of the 2017 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 88-91. 8069127 https://doi.org/10.1109/RSM.2017.8069127
Selvarajan, Reena Sri ; Hamzah, Azrul Azlan ; Yeop Majlis, Burhanuddin. / Transfer characteristics of graphene based field effect transistor (GFET) for biosensing application. Proceedings of the 2017 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 88-91
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